CJ 7 Brake Master Cylinder
05-11-2004, 01:45 PM
#11
Guest
Posts: n/a
Re: CJ 7 Brake Master Cylinder
There has been fluid leaking around the firewall since I bought it, that
is what make me think the seal finally died.
What do you think about the difference when I change the rear axle to a
Dana 44? Will I need a different MC?
In article <40A10968.C6890930@sympatico.ca>,
Mike Romain <romainm@sympatico.ca> wrote:
> My guess is the rim and rubber seal on the fluid container are dirty
> letting it leak out the top.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> aGraham wrote:
> >
> > Anybody????
> >
> > Also more info....
> > In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> > which has 11" rear drums instead of my current 10.75" drums on the AMC
> > 20. Should I go ahead and get the MC from a 74? But the 74 was
> > designed for fron drums where I will be keeping my front disks.
> >
> > In article
> > <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> > aGraham <aarongraham@mac.com.removeme> wrote:
> >
> > > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > > was mad I even had to borrow a trailer and go back and get the Jeep
> > > Sunday morning.
> > >
> > > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > > to covered in mud to see anything and I was busy helping our club with
> > > the rest of our event. Picts can be seen here:
> > > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> > >
> > > oh yeah, back to my problem....
> > >
> > > Some of you may remember me posting last week about my brake issues due
> > > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > > locked then out of adjustment put to much stress on my resevoir. I
> > > looked online at NAPA and see many different choices for Master
> > > Cylinders for manual brakes. What are the differences besides
> > > new/rebuilt? Is there a big difference between a new and rebuilt unit?
> >
> > --
> > o_o_o_o
> > /| ,[_____],
> > |ŻŻŻL --O|||||||O-
> > ()_)Ż()_) ŻŻŻŻŻ )_)
--
o_o_o_o
/| ,[_____],
|ŻŻŻL --O|||||||O-
()_)Ż()_) ŻŻŻŻŻ )_)
is what make me think the seal finally died.
What do you think about the difference when I change the rear axle to a
Dana 44? Will I need a different MC?
In article <40A10968.C6890930@sympatico.ca>,
Mike Romain <romainm@sympatico.ca> wrote:
> My guess is the rim and rubber seal on the fluid container are dirty
> letting it leak out the top.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> aGraham wrote:
> >
> > Anybody????
> >
> > Also more info....
> > In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> > which has 11" rear drums instead of my current 10.75" drums on the AMC
> > 20. Should I go ahead and get the MC from a 74? But the 74 was
> > designed for fron drums where I will be keeping my front disks.
> >
> > In article
> > <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> > aGraham <aarongraham@mac.com.removeme> wrote:
> >
> > > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > > was mad I even had to borrow a trailer and go back and get the Jeep
> > > Sunday morning.
> > >
> > > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > > to covered in mud to see anything and I was busy helping our club with
> > > the rest of our event. Picts can be seen here:
> > > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> > >
> > > oh yeah, back to my problem....
> > >
> > > Some of you may remember me posting last week about my brake issues due
> > > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > > locked then out of adjustment put to much stress on my resevoir. I
> > > looked online at NAPA and see many different choices for Master
> > > Cylinders for manual brakes. What are the differences besides
> > > new/rebuilt? Is there a big difference between a new and rebuilt unit?
> >
> > --
> > o_o_o_o
> > /| ,[_____],
> > |ŻŻŻL --O|||||||O-
> > ()_)Ż()_) ŻŻŻŻŻ )_)
--
o_o_o_o
/| ,[_____],
|ŻŻŻL --O|||||||O-
()_)Ż()_) ŻŻŻŻŻ )_)
05-11-2004, 01:45 PM
#12
Guest
Posts: n/a
Re: CJ 7 Brake Master Cylinder
There has been fluid leaking around the firewall since I bought it, that
is what make me think the seal finally died.
What do you think about the difference when I change the rear axle to a
Dana 44? Will I need a different MC?
In article <40A10968.C6890930@sympatico.ca>,
Mike Romain <romainm@sympatico.ca> wrote:
> My guess is the rim and rubber seal on the fluid container are dirty
> letting it leak out the top.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> aGraham wrote:
> >
> > Anybody????
> >
> > Also more info....
> > In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> > which has 11" rear drums instead of my current 10.75" drums on the AMC
> > 20. Should I go ahead and get the MC from a 74? But the 74 was
> > designed for fron drums where I will be keeping my front disks.
> >
> > In article
> > <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> > aGraham <aarongraham@mac.com.removeme> wrote:
> >
> > > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > > was mad I even had to borrow a trailer and go back and get the Jeep
> > > Sunday morning.
> > >
> > > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > > to covered in mud to see anything and I was busy helping our club with
> > > the rest of our event. Picts can be seen here:
> > > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> > >
> > > oh yeah, back to my problem....
> > >
> > > Some of you may remember me posting last week about my brake issues due
> > > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > > locked then out of adjustment put to much stress on my resevoir. I
> > > looked online at NAPA and see many different choices for Master
> > > Cylinders for manual brakes. What are the differences besides
> > > new/rebuilt? Is there a big difference between a new and rebuilt unit?
> >
> > --
> > o_o_o_o
> > /| ,[_____],
> > |ŻŻŻL --O|||||||O-
> > ()_)Ż()_) ŻŻŻŻŻ )_)
--
o_o_o_o
/| ,[_____],
|ŻŻŻL --O|||||||O-
()_)Ż()_) ŻŻŻŻŻ )_)
is what make me think the seal finally died.
What do you think about the difference when I change the rear axle to a
Dana 44? Will I need a different MC?
In article <40A10968.C6890930@sympatico.ca>,
Mike Romain <romainm@sympatico.ca> wrote:
> My guess is the rim and rubber seal on the fluid container are dirty
> letting it leak out the top.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> aGraham wrote:
> >
> > Anybody????
> >
> > Also more info....
> > In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> > which has 11" rear drums instead of my current 10.75" drums on the AMC
> > 20. Should I go ahead and get the MC from a 74? But the 74 was
> > designed for fron drums where I will be keeping my front disks.
> >
> > In article
> > <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> > aGraham <aarongraham@mac.com.removeme> wrote:
> >
> > > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > > was mad I even had to borrow a trailer and go back and get the Jeep
> > > Sunday morning.
> > >
> > > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > > to covered in mud to see anything and I was busy helping our club with
> > > the rest of our event. Picts can be seen here:
> > > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> > >
> > > oh yeah, back to my problem....
> > >
> > > Some of you may remember me posting last week about my brake issues due
> > > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > > locked then out of adjustment put to much stress on my resevoir. I
> > > looked online at NAPA and see many different choices for Master
> > > Cylinders for manual brakes. What are the differences besides
> > > new/rebuilt? Is there a big difference between a new and rebuilt unit?
> >
> > --
> > o_o_o_o
> > /| ,[_____],
> > |ŻŻŻL --O|||||||O-
> > ()_)Ż()_) ŻŻŻŻŻ )_)
--
o_o_o_o
/| ,[_____],
|ŻŻŻL --O|||||||O-
()_)Ż()_) ŻŻŻŻŻ )_)
05-11-2004, 01:45 PM
#13
Guest
Posts: n/a
Re: CJ 7 Brake Master Cylinder
There has been fluid leaking around the firewall since I bought it, that
is what make me think the seal finally died.
What do you think about the difference when I change the rear axle to a
Dana 44? Will I need a different MC?
In article <40A10968.C6890930@sympatico.ca>,
Mike Romain <romainm@sympatico.ca> wrote:
> My guess is the rim and rubber seal on the fluid container are dirty
> letting it leak out the top.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> aGraham wrote:
> >
> > Anybody????
> >
> > Also more info....
> > In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> > which has 11" rear drums instead of my current 10.75" drums on the AMC
> > 20. Should I go ahead and get the MC from a 74? But the 74 was
> > designed for fron drums where I will be keeping my front disks.
> >
> > In article
> > <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> > aGraham <aarongraham@mac.com.removeme> wrote:
> >
> > > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > > was mad I even had to borrow a trailer and go back and get the Jeep
> > > Sunday morning.
> > >
> > > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > > to covered in mud to see anything and I was busy helping our club with
> > > the rest of our event. Picts can be seen here:
> > > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> > >
> > > oh yeah, back to my problem....
> > >
> > > Some of you may remember me posting last week about my brake issues due
> > > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > > locked then out of adjustment put to much stress on my resevoir. I
> > > looked online at NAPA and see many different choices for Master
> > > Cylinders for manual brakes. What are the differences besides
> > > new/rebuilt? Is there a big difference between a new and rebuilt unit?
> >
> > --
> > o_o_o_o
> > /| ,[_____],
> > |ŻŻŻL --O|||||||O-
> > ()_)Ż()_) ŻŻŻŻŻ )_)
--
o_o_o_o
/| ,[_____],
|ŻŻŻL --O|||||||O-
()_)Ż()_) ŻŻŻŻŻ )_)
is what make me think the seal finally died.
What do you think about the difference when I change the rear axle to a
Dana 44? Will I need a different MC?
In article <40A10968.C6890930@sympatico.ca>,
Mike Romain <romainm@sympatico.ca> wrote:
> My guess is the rim and rubber seal on the fluid container are dirty
> letting it leak out the top.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> aGraham wrote:
> >
> > Anybody????
> >
> > Also more info....
> > In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> > which has 11" rear drums instead of my current 10.75" drums on the AMC
> > 20. Should I go ahead and get the MC from a 74? But the 74 was
> > designed for fron drums where I will be keeping my front disks.
> >
> > In article
> > <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> > aGraham <aarongraham@mac.com.removeme> wrote:
> >
> > > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > > was mad I even had to borrow a trailer and go back and get the Jeep
> > > Sunday morning.
> > >
> > > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > > to covered in mud to see anything and I was busy helping our club with
> > > the rest of our event. Picts can be seen here:
> > > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> > >
> > > oh yeah, back to my problem....
> > >
> > > Some of you may remember me posting last week about my brake issues due
> > > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > > locked then out of adjustment put to much stress on my resevoir. I
> > > looked online at NAPA and see many different choices for Master
> > > Cylinders for manual brakes. What are the differences besides
> > > new/rebuilt? Is there a big difference between a new and rebuilt unit?
> >
> > --
> > o_o_o_o
> > /| ,[_____],
> > |ŻŻŻL --O|||||||O-
> > ()_)Ż()_) ŻŻŻŻŻ )_)
--
o_o_o_o
/| ,[_____],
|ŻŻŻL --O|||||||O-
()_)Ż()_) ŻŻŻŻŻ )_)
05-11-2004, 10:27 PM
#14
Guest
Posts: n/a
Re: CJ 7 Brake Master Cylinder
I started looking at it tonight, looks like it is leaking around/at the
proportioning valve. Looks like I am going to have to possibly replace
the valve and some of the lines. The lines look really rusted so I am
sure they are not going to unscrew easily. It is definitely leaking
from both resevoirs so I am assuming the valve is bad. I could not pin
point the leak because I was working by myself, had to pump the brake
pedal a bunch of times to get pressure, but then before I could lay down
and slide underneath it was just running down. I could hear it spraying
as I was pumping the pedal.
To replace the lines, should I replace the complete lines or can i just
splice in new parts?
I have a mechanic buddy who is going to help me, he says he has a
flaring tool and everything needed.
In article
<aarongraham-B9C110.11371511052004@corp-radius.supernews.com>,
aGraham <aarongraham@mac.com.removeme> wrote:
> Anybody????
>
> Also more info....
> In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> which has 11" rear drums instead of my current 10.75" drums on the AMC
> 20. Should I go ahead and get the MC from a 74? But the 74 was
> designed for fron drums where I will be keeping my front disks.
>
> In article
> <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> aGraham <aarongraham@mac.com.removeme> wrote:
>
> > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > was mad I even had to borrow a trailer and go back and get the Jeep
> > Sunday morning.
> >
> > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > to covered in mud to see anything and I was busy helping our club with
> > the rest of our event. Picts can be seen here:
> > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> >
> > oh yeah, back to my problem....
> >
> > Some of you may remember me posting last week about my brake issues due
> > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > locked then out of adjustment put to much stress on my resevoir. I
> > looked online at NAPA and see many different choices for Master
> > Cylinders for manual brakes. What are the differences besides
> > new/rebuilt? Is there a big difference between a new and rebuilt unit?
--
o_o_o_o
/| ,[_____],
|ŻŻŻL --O|||||||O-
()_)Ż()_) ŻŻŻŻŻ )_)
proportioning valve. Looks like I am going to have to possibly replace
the valve and some of the lines. The lines look really rusted so I am
sure they are not going to unscrew easily. It is definitely leaking
from both resevoirs so I am assuming the valve is bad. I could not pin
point the leak because I was working by myself, had to pump the brake
pedal a bunch of times to get pressure, but then before I could lay down
and slide underneath it was just running down. I could hear it spraying
as I was pumping the pedal.
To replace the lines, should I replace the complete lines or can i just
splice in new parts?
I have a mechanic buddy who is going to help me, he says he has a
flaring tool and everything needed.
In article
<aarongraham-B9C110.11371511052004@corp-radius.supernews.com>,
aGraham <aarongraham@mac.com.removeme> wrote:
> Anybody????
>
> Also more info....
> In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> which has 11" rear drums instead of my current 10.75" drums on the AMC
> 20. Should I go ahead and get the MC from a 74? But the 74 was
> designed for fron drums where I will be keeping my front disks.
>
> In article
> <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> aGraham <aarongraham@mac.com.removeme> wrote:
>
> > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > was mad I even had to borrow a trailer and go back and get the Jeep
> > Sunday morning.
> >
> > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > to covered in mud to see anything and I was busy helping our club with
> > the rest of our event. Picts can be seen here:
> > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> >
> > oh yeah, back to my problem....
> >
> > Some of you may remember me posting last week about my brake issues due
> > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > locked then out of adjustment put to much stress on my resevoir. I
> > looked online at NAPA and see many different choices for Master
> > Cylinders for manual brakes. What are the differences besides
> > new/rebuilt? Is there a big difference between a new and rebuilt unit?
--
o_o_o_o
/| ,[_____],
|ŻŻŻL --O|||||||O-
()_)Ż()_) ŻŻŻŻŻ )_)
05-11-2004, 10:27 PM
#15
Guest
Posts: n/a
Re: CJ 7 Brake Master Cylinder
I started looking at it tonight, looks like it is leaking around/at the
proportioning valve. Looks like I am going to have to possibly replace
the valve and some of the lines. The lines look really rusted so I am
sure they are not going to unscrew easily. It is definitely leaking
from both resevoirs so I am assuming the valve is bad. I could not pin
point the leak because I was working by myself, had to pump the brake
pedal a bunch of times to get pressure, but then before I could lay down
and slide underneath it was just running down. I could hear it spraying
as I was pumping the pedal.
To replace the lines, should I replace the complete lines or can i just
splice in new parts?
I have a mechanic buddy who is going to help me, he says he has a
flaring tool and everything needed.
In article
<aarongraham-B9C110.11371511052004@corp-radius.supernews.com>,
aGraham <aarongraham@mac.com.removeme> wrote:
> Anybody????
>
> Also more info....
> In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> which has 11" rear drums instead of my current 10.75" drums on the AMC
> 20. Should I go ahead and get the MC from a 74? But the 74 was
> designed for fron drums where I will be keeping my front disks.
>
> In article
> <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> aGraham <aarongraham@mac.com.removeme> wrote:
>
> > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > was mad I even had to borrow a trailer and go back and get the Jeep
> > Sunday morning.
> >
> > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > to covered in mud to see anything and I was busy helping our club with
> > the rest of our event. Picts can be seen here:
> > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> >
> > oh yeah, back to my problem....
> >
> > Some of you may remember me posting last week about my brake issues due
> > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > locked then out of adjustment put to much stress on my resevoir. I
> > looked online at NAPA and see many different choices for Master
> > Cylinders for manual brakes. What are the differences besides
> > new/rebuilt? Is there a big difference between a new and rebuilt unit?
--
o_o_o_o
/| ,[_____],
|ŻŻŻL --O|||||||O-
()_)Ż()_) ŻŻŻŻŻ )_)
proportioning valve. Looks like I am going to have to possibly replace
the valve and some of the lines. The lines look really rusted so I am
sure they are not going to unscrew easily. It is definitely leaking
from both resevoirs so I am assuming the valve is bad. I could not pin
point the leak because I was working by myself, had to pump the brake
pedal a bunch of times to get pressure, but then before I could lay down
and slide underneath it was just running down. I could hear it spraying
as I was pumping the pedal.
To replace the lines, should I replace the complete lines or can i just
splice in new parts?
I have a mechanic buddy who is going to help me, he says he has a
flaring tool and everything needed.
In article
<aarongraham-B9C110.11371511052004@corp-radius.supernews.com>,
aGraham <aarongraham@mac.com.removeme> wrote:
> Anybody????
>
> Also more info....
> In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> which has 11" rear drums instead of my current 10.75" drums on the AMC
> 20. Should I go ahead and get the MC from a 74? But the 74 was
> designed for fron drums where I will be keeping my front disks.
>
> In article
> <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> aGraham <aarongraham@mac.com.removeme> wrote:
>
> > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > was mad I even had to borrow a trailer and go back and get the Jeep
> > Sunday morning.
> >
> > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > to covered in mud to see anything and I was busy helping our club with
> > the rest of our event. Picts can be seen here:
> > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> >
> > oh yeah, back to my problem....
> >
> > Some of you may remember me posting last week about my brake issues due
> > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > locked then out of adjustment put to much stress on my resevoir. I
> > looked online at NAPA and see many different choices for Master
> > Cylinders for manual brakes. What are the differences besides
> > new/rebuilt? Is there a big difference between a new and rebuilt unit?
--
o_o_o_o
/| ,[_____],
|ŻŻŻL --O|||||||O-
()_)Ż()_) ŻŻŻŻŻ )_)
05-11-2004, 10:27 PM
#16
Guest
Posts: n/a
Re: CJ 7 Brake Master Cylinder
I started looking at it tonight, looks like it is leaking around/at the
proportioning valve. Looks like I am going to have to possibly replace
the valve and some of the lines. The lines look really rusted so I am
sure they are not going to unscrew easily. It is definitely leaking
from both resevoirs so I am assuming the valve is bad. I could not pin
point the leak because I was working by myself, had to pump the brake
pedal a bunch of times to get pressure, but then before I could lay down
and slide underneath it was just running down. I could hear it spraying
as I was pumping the pedal.
To replace the lines, should I replace the complete lines or can i just
splice in new parts?
I have a mechanic buddy who is going to help me, he says he has a
flaring tool and everything needed.
In article
<aarongraham-B9C110.11371511052004@corp-radius.supernews.com>,
aGraham <aarongraham@mac.com.removeme> wrote:
> Anybody????
>
> Also more info....
> In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> which has 11" rear drums instead of my current 10.75" drums on the AMC
> 20. Should I go ahead and get the MC from a 74? But the 74 was
> designed for fron drums where I will be keeping my front disks.
>
> In article
> <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> aGraham <aarongraham@mac.com.removeme> wrote:
>
> > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > was mad I even had to borrow a trailer and go back and get the Jeep
> > Sunday morning.
> >
> > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > to covered in mud to see anything and I was busy helping our club with
> > the rest of our event. Picts can be seen here:
> > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> >
> > oh yeah, back to my problem....
> >
> > Some of you may remember me posting last week about my brake issues due
> > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > locked then out of adjustment put to much stress on my resevoir. I
> > looked online at NAPA and see many different choices for Master
> > Cylinders for manual brakes. What are the differences besides
> > new/rebuilt? Is there a big difference between a new and rebuilt unit?
--
o_o_o_o
/| ,[_____],
|ŻŻŻL --O|||||||O-
()_)Ż()_) ŻŻŻŻŻ )_)
proportioning valve. Looks like I am going to have to possibly replace
the valve and some of the lines. The lines look really rusted so I am
sure they are not going to unscrew easily. It is definitely leaking
from both resevoirs so I am assuming the valve is bad. I could not pin
point the leak because I was working by myself, had to pump the brake
pedal a bunch of times to get pressure, but then before I could lay down
and slide underneath it was just running down. I could hear it spraying
as I was pumping the pedal.
To replace the lines, should I replace the complete lines or can i just
splice in new parts?
I have a mechanic buddy who is going to help me, he says he has a
flaring tool and everything needed.
In article
<aarongraham-B9C110.11371511052004@corp-radius.supernews.com>,
aGraham <aarongraham@mac.com.removeme> wrote:
> Anybody????
>
> Also more info....
> In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> which has 11" rear drums instead of my current 10.75" drums on the AMC
> 20. Should I go ahead and get the MC from a 74? But the 74 was
> designed for fron drums where I will be keeping my front disks.
>
> In article
> <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> aGraham <aarongraham@mac.com.removeme> wrote:
>
> > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > was mad I even had to borrow a trailer and go back and get the Jeep
> > Sunday morning.
> >
> > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > to covered in mud to see anything and I was busy helping our club with
> > the rest of our event. Picts can be seen here:
> > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> >
> > oh yeah, back to my problem....
> >
> > Some of you may remember me posting last week about my brake issues due
> > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > locked then out of adjustment put to much stress on my resevoir. I
> > looked online at NAPA and see many different choices for Master
> > Cylinders for manual brakes. What are the differences besides
> > new/rebuilt? Is there a big difference between a new and rebuilt unit?
--
o_o_o_o
/| ,[_____],
|ŻŻŻL --O|||||||O-
()_)Ż()_) ŻŻŻŻŻ )_)
05-11-2004, 10:27 PM
#17
Guest
Posts: n/a
Re: CJ 7 Brake Master Cylinder
I started looking at it tonight, looks like it is leaking around/at the
proportioning valve. Looks like I am going to have to possibly replace
the valve and some of the lines. The lines look really rusted so I am
sure they are not going to unscrew easily. It is definitely leaking
from both resevoirs so I am assuming the valve is bad. I could not pin
point the leak because I was working by myself, had to pump the brake
pedal a bunch of times to get pressure, but then before I could lay down
and slide underneath it was just running down. I could hear it spraying
as I was pumping the pedal.
To replace the lines, should I replace the complete lines or can i just
splice in new parts?
I have a mechanic buddy who is going to help me, he says he has a
flaring tool and everything needed.
In article
<aarongraham-B9C110.11371511052004@corp-radius.supernews.com>,
aGraham <aarongraham@mac.com.removeme> wrote:
> Anybody????
>
> Also more info....
> In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> which has 11" rear drums instead of my current 10.75" drums on the AMC
> 20. Should I go ahead and get the MC from a 74? But the 74 was
> designed for fron drums where I will be keeping my front disks.
>
> In article
> <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> aGraham <aarongraham@mac.com.removeme> wrote:
>
> > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > was mad I even had to borrow a trailer and go back and get the Jeep
> > Sunday morning.
> >
> > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > to covered in mud to see anything and I was busy helping our club with
> > the rest of our event. Picts can be seen here:
> > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> >
> > oh yeah, back to my problem....
> >
> > Some of you may remember me posting last week about my brake issues due
> > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > locked then out of adjustment put to much stress on my resevoir. I
> > looked online at NAPA and see many different choices for Master
> > Cylinders for manual brakes. What are the differences besides
> > new/rebuilt? Is there a big difference between a new and rebuilt unit?
--
o_o_o_o
/| ,[_____],
|ŻŻŻL --O|||||||O-
()_)Ż()_) ŻŻŻŻŻ )_)
proportioning valve. Looks like I am going to have to possibly replace
the valve and some of the lines. The lines look really rusted so I am
sure they are not going to unscrew easily. It is definitely leaking
from both resevoirs so I am assuming the valve is bad. I could not pin
point the leak because I was working by myself, had to pump the brake
pedal a bunch of times to get pressure, but then before I could lay down
and slide underneath it was just running down. I could hear it spraying
as I was pumping the pedal.
To replace the lines, should I replace the complete lines or can i just
splice in new parts?
I have a mechanic buddy who is going to help me, he says he has a
flaring tool and everything needed.
In article
<aarongraham-B9C110.11371511052004@corp-radius.supernews.com>,
aGraham <aarongraham@mac.com.removeme> wrote:
> Anybody????
>
> Also more info....
> In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> which has 11" rear drums instead of my current 10.75" drums on the AMC
> 20. Should I go ahead and get the MC from a 74? But the 74 was
> designed for fron drums where I will be keeping my front disks.
>
> In article
> <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> aGraham <aarongraham@mac.com.removeme> wrote:
>
> > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > was mad I even had to borrow a trailer and go back and get the Jeep
> > Sunday morning.
> >
> > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > to covered in mud to see anything and I was busy helping our club with
> > the rest of our event. Picts can be seen here:
> > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> >
> > oh yeah, back to my problem....
> >
> > Some of you may remember me posting last week about my brake issues due
> > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > locked then out of adjustment put to much stress on my resevoir. I
> > looked online at NAPA and see many different choices for Master
> > Cylinders for manual brakes. What are the differences besides
> > new/rebuilt? Is there a big difference between a new and rebuilt unit?
--
o_o_o_o
/| ,[_____],
|ŻŻŻL --O|||||||O-
()_)Ż()_) ŻŻŻŻŻ )_)
05-14-2004, 09:53 PM
#18
Guest
Posts: n/a
Re: CJ 7 Brake Master Cylinder
I don't think you will need anything different.
The proportioning valve goes by PSI not volume and the wheel cylinders
don't move any more because of a physically bigger drum, the movement is
in the gap or adjustment.
A leak out the cover seal can/does run down onto the firewall on the
engine side. Blown seals leak down the firewall on the inside and soak
the carpet.
Having that rubber gasket get rust flakes and leak is pretty common. My
CJ7 was like that and I got air in even on it's first off road run after
the frame up rebuild. I didn't clean that part and got dinged for it.
Had to bleed the whole system way out in the bush....
Mike
aGraham wrote:
>
> There has been fluid leaking around the firewall since I bought it, that
> is what make me think the seal finally died.
>
> What do you think about the difference when I change the rear axle to a
> Dana 44? Will I need a different MC?
>
> In article <40A10968.C6890930@sympatico.ca>,
> Mike Romain <romainm@sympatico.ca> wrote:
>
> > My guess is the rim and rubber seal on the fluid container are dirty
> > letting it leak out the top.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > aGraham wrote:
> > >
> > > Anybody????
> > >
> > > Also more info....
> > > In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> > > which has 11" rear drums instead of my current 10.75" drums on the AMC
> > > 20. Should I go ahead and get the MC from a 74? But the 74 was
> > > designed for fron drums where I will be keeping my front disks.
> > >
> > > In article
> > > <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> > > aGraham <aarongraham@mac.com.removeme> wrote:
> > >
> > > > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > > > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > > > was mad I even had to borrow a trailer and go back and get the Jeep
> > > > Sunday morning.
> > > >
> > > > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > > > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > > > to covered in mud to see anything and I was busy helping our club with
> > > > the rest of our event. Picts can be seen here:
> > > > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> > > >
> > > > oh yeah, back to my problem....
> > > >
> > > > Some of you may remember me posting last week about my brake issues due
> > > > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > > > locked then out of adjustment put to much stress on my resevoir. I
> > > > looked online at NAPA and see many different choices for Master
> > > > Cylinders for manual brakes. What are the differences besides
> > > > new/rebuilt? Is there a big difference between a new and rebuilt unit?
> > >
> > > --
> > > o_o_o_o
> > > /| ,[_____],
> > > |ŻŻŻL --O|||||||O-
> > > ()_)Ż()_) ŻŻŻŻŻ )_)
>
> --
> o_o_o_o
> /| ,[_____],
> |ŻŻŻL --O|||||||O-
> ()_)Ż()_) ŻŻŻŻŻ )_)
The proportioning valve goes by PSI not volume and the wheel cylinders
don't move any more because of a physically bigger drum, the movement is
in the gap or adjustment.
A leak out the cover seal can/does run down onto the firewall on the
engine side. Blown seals leak down the firewall on the inside and soak
the carpet.
Having that rubber gasket get rust flakes and leak is pretty common. My
CJ7 was like that and I got air in even on it's first off road run after
the frame up rebuild. I didn't clean that part and got dinged for it.
Had to bleed the whole system way out in the bush....
Mike
aGraham wrote:
>
> There has been fluid leaking around the firewall since I bought it, that
> is what make me think the seal finally died.
>
> What do you think about the difference when I change the rear axle to a
> Dana 44? Will I need a different MC?
>
> In article <40A10968.C6890930@sympatico.ca>,
> Mike Romain <romainm@sympatico.ca> wrote:
>
> > My guess is the rim and rubber seal on the fluid container are dirty
> > letting it leak out the top.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > aGraham wrote:
> > >
> > > Anybody????
> > >
> > > Also more info....
> > > In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> > > which has 11" rear drums instead of my current 10.75" drums on the AMC
> > > 20. Should I go ahead and get the MC from a 74? But the 74 was
> > > designed for fron drums where I will be keeping my front disks.
> > >
> > > In article
> > > <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> > > aGraham <aarongraham@mac.com.removeme> wrote:
> > >
> > > > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > > > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > > > was mad I even had to borrow a trailer and go back and get the Jeep
> > > > Sunday morning.
> > > >
> > > > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > > > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > > > to covered in mud to see anything and I was busy helping our club with
> > > > the rest of our event. Picts can be seen here:
> > > > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> > > >
> > > > oh yeah, back to my problem....
> > > >
> > > > Some of you may remember me posting last week about my brake issues due
> > > > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > > > locked then out of adjustment put to much stress on my resevoir. I
> > > > looked online at NAPA and see many different choices for Master
> > > > Cylinders for manual brakes. What are the differences besides
> > > > new/rebuilt? Is there a big difference between a new and rebuilt unit?
> > >
> > > --
> > > o_o_o_o
> > > /| ,[_____],
> > > |ŻŻŻL --O|||||||O-
> > > ()_)Ż()_) ŻŻŻŻŻ )_)
>
> --
> o_o_o_o
> /| ,[_____],
> |ŻŻŻL --O|||||||O-
> ()_)Ż()_) ŻŻŻŻŻ )_)
05-14-2004, 09:53 PM
#19
Guest
Posts: n/a
Re: CJ 7 Brake Master Cylinder
I don't think you will need anything different.
The proportioning valve goes by PSI not volume and the wheel cylinders
don't move any more because of a physically bigger drum, the movement is
in the gap or adjustment.
A leak out the cover seal can/does run down onto the firewall on the
engine side. Blown seals leak down the firewall on the inside and soak
the carpet.
Having that rubber gasket get rust flakes and leak is pretty common. My
CJ7 was like that and I got air in even on it's first off road run after
the frame up rebuild. I didn't clean that part and got dinged for it.
Had to bleed the whole system way out in the bush....
Mike
aGraham wrote:
>
> There has been fluid leaking around the firewall since I bought it, that
> is what make me think the seal finally died.
>
> What do you think about the difference when I change the rear axle to a
> Dana 44? Will I need a different MC?
>
> In article <40A10968.C6890930@sympatico.ca>,
> Mike Romain <romainm@sympatico.ca> wrote:
>
> > My guess is the rim and rubber seal on the fluid container are dirty
> > letting it leak out the top.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > aGraham wrote:
> > >
> > > Anybody????
> > >
> > > Also more info....
> > > In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> > > which has 11" rear drums instead of my current 10.75" drums on the AMC
> > > 20. Should I go ahead and get the MC from a 74? But the 74 was
> > > designed for fron drums where I will be keeping my front disks.
> > >
> > > In article
> > > <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> > > aGraham <aarongraham@mac.com.removeme> wrote:
> > >
> > > > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > > > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > > > was mad I even had to borrow a trailer and go back and get the Jeep
> > > > Sunday morning.
> > > >
> > > > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > > > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > > > to covered in mud to see anything and I was busy helping our club with
> > > > the rest of our event. Picts can be seen here:
> > > > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> > > >
> > > > oh yeah, back to my problem....
> > > >
> > > > Some of you may remember me posting last week about my brake issues due
> > > > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > > > locked then out of adjustment put to much stress on my resevoir. I
> > > > looked online at NAPA and see many different choices for Master
> > > > Cylinders for manual brakes. What are the differences besides
> > > > new/rebuilt? Is there a big difference between a new and rebuilt unit?
> > >
> > > --
> > > o_o_o_o
> > > /| ,[_____],
> > > |ŻŻŻL --O|||||||O-
> > > ()_)Ż()_) ŻŻŻŻŻ )_)
>
> --
> o_o_o_o
> /| ,[_____],
> |ŻŻŻL --O|||||||O-
> ()_)Ż()_) ŻŻŻŻŻ )_)
The proportioning valve goes by PSI not volume and the wheel cylinders
don't move any more because of a physically bigger drum, the movement is
in the gap or adjustment.
A leak out the cover seal can/does run down onto the firewall on the
engine side. Blown seals leak down the firewall on the inside and soak
the carpet.
Having that rubber gasket get rust flakes and leak is pretty common. My
CJ7 was like that and I got air in even on it's first off road run after
the frame up rebuild. I didn't clean that part and got dinged for it.
Had to bleed the whole system way out in the bush....
Mike
aGraham wrote:
>
> There has been fluid leaking around the firewall since I bought it, that
> is what make me think the seal finally died.
>
> What do you think about the difference when I change the rear axle to a
> Dana 44? Will I need a different MC?
>
> In article <40A10968.C6890930@sympatico.ca>,
> Mike Romain <romainm@sympatico.ca> wrote:
>
> > My guess is the rim and rubber seal on the fluid container are dirty
> > letting it leak out the top.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > aGraham wrote:
> > >
> > > Anybody????
> > >
> > > Also more info....
> > > In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> > > which has 11" rear drums instead of my current 10.75" drums on the AMC
> > > 20. Should I go ahead and get the MC from a 74? But the 74 was
> > > designed for fron drums where I will be keeping my front disks.
> > >
> > > In article
> > > <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> > > aGraham <aarongraham@mac.com.removeme> wrote:
> > >
> > > > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > > > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > > > was mad I even had to borrow a trailer and go back and get the Jeep
> > > > Sunday morning.
> > > >
> > > > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > > > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > > > to covered in mud to see anything and I was busy helping our club with
> > > > the rest of our event. Picts can be seen here:
> > > > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> > > >
> > > > oh yeah, back to my problem....
> > > >
> > > > Some of you may remember me posting last week about my brake issues due
> > > > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > > > locked then out of adjustment put to much stress on my resevoir. I
> > > > looked online at NAPA and see many different choices for Master
> > > > Cylinders for manual brakes. What are the differences besides
> > > > new/rebuilt? Is there a big difference between a new and rebuilt unit?
> > >
> > > --
> > > o_o_o_o
> > > /| ,[_____],
> > > |ŻŻŻL --O|||||||O-
> > > ()_)Ż()_) ŻŻŻŻŻ )_)
>
> --
> o_o_o_o
> /| ,[_____],
> |ŻŻŻL --O|||||||O-
> ()_)Ż()_) ŻŻŻŻŻ )_)
05-14-2004, 09:53 PM
#20
Guest
Posts: n/a
Re: CJ 7 Brake Master Cylinder
I don't think you will need anything different.
The proportioning valve goes by PSI not volume and the wheel cylinders
don't move any more because of a physically bigger drum, the movement is
in the gap or adjustment.
A leak out the cover seal can/does run down onto the firewall on the
engine side. Blown seals leak down the firewall on the inside and soak
the carpet.
Having that rubber gasket get rust flakes and leak is pretty common. My
CJ7 was like that and I got air in even on it's first off road run after
the frame up rebuild. I didn't clean that part and got dinged for it.
Had to bleed the whole system way out in the bush....
Mike
aGraham wrote:
>
> There has been fluid leaking around the firewall since I bought it, that
> is what make me think the seal finally died.
>
> What do you think about the difference when I change the rear axle to a
> Dana 44? Will I need a different MC?
>
> In article <40A10968.C6890930@sympatico.ca>,
> Mike Romain <romainm@sympatico.ca> wrote:
>
> > My guess is the rim and rubber seal on the fluid container are dirty
> > letting it leak out the top.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > aGraham wrote:
> > >
> > > Anybody????
> > >
> > > Also more info....
> > > In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> > > which has 11" rear drums instead of my current 10.75" drums on the AMC
> > > 20. Should I go ahead and get the MC from a 74? But the 74 was
> > > designed for fron drums where I will be keeping my front disks.
> > >
> > > In article
> > > <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> > > aGraham <aarongraham@mac.com.removeme> wrote:
> > >
> > > > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > > > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > > > was mad I even had to borrow a trailer and go back and get the Jeep
> > > > Sunday morning.
> > > >
> > > > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > > > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > > > to covered in mud to see anything and I was busy helping our club with
> > > > the rest of our event. Picts can be seen here:
> > > > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> > > >
> > > > oh yeah, back to my problem....
> > > >
> > > > Some of you may remember me posting last week about my brake issues due
> > > > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > > > locked then out of adjustment put to much stress on my resevoir. I
> > > > looked online at NAPA and see many different choices for Master
> > > > Cylinders for manual brakes. What are the differences besides
> > > > new/rebuilt? Is there a big difference between a new and rebuilt unit?
> > >
> > > --
> > > o_o_o_o
> > > /| ,[_____],
> > > |ŻŻŻL --O|||||||O-
> > > ()_)Ż()_) ŻŻŻŻŻ )_)
>
> --
> o_o_o_o
> /| ,[_____],
> |ŻŻŻL --O|||||||O-
> ()_)Ż()_) ŻŻŻŻŻ )_)
The proportioning valve goes by PSI not volume and the wheel cylinders
don't move any more because of a physically bigger drum, the movement is
in the gap or adjustment.
A leak out the cover seal can/does run down onto the firewall on the
engine side. Blown seals leak down the firewall on the inside and soak
the carpet.
Having that rubber gasket get rust flakes and leak is pretty common. My
CJ7 was like that and I got air in even on it's first off road run after
the frame up rebuild. I didn't clean that part and got dinged for it.
Had to bleed the whole system way out in the bush....
Mike
aGraham wrote:
>
> There has been fluid leaking around the firewall since I bought it, that
> is what make me think the seal finally died.
>
> What do you think about the difference when I change the rear axle to a
> Dana 44? Will I need a different MC?
>
> In article <40A10968.C6890930@sympatico.ca>,
> Mike Romain <romainm@sympatico.ca> wrote:
>
> > My guess is the rim and rubber seal on the fluid container are dirty
> > letting it leak out the top.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > aGraham wrote:
> > >
> > > Anybody????
> > >
> > > Also more info....
> > > In the near future I will be swapping in a rear Dana44 from a 74 CJ5,
> > > which has 11" rear drums instead of my current 10.75" drums on the AMC
> > > 20. Should I go ahead and get the MC from a 74? But the 74 was
> > > designed for fron drums where I will be keeping my front disks.
> > >
> > > In article
> > > <aarongraham-7CFBC3.11223810052004@corp-radius.supernews.com>,
> > > aGraham <aarongraham@mac.com.removeme> wrote:
> > >
> > > > During wheeling Saturday I lost my brakes in my '79 CJ7, haven't had
> > > > much time to diagnose it, due to yesterday being Mothers Day. My wife
> > > > was mad I even had to borrow a trailer and go back and get the Jeep
> > > > Sunday morning.
> > > >
> > > > I believe it may be leaking fluid from the Mastercylinder as I am losing
> > > > fluid from both resevoirs. I could not diagnose it Saturday as it was
> > > > to covered in mud to see anything and I was busy helping our club with
> > > > the rest of our event. Picts can be seen here:
> > > > http://www.mudnuts.org/gallery/dalton04 including a rolled UniMog.
> > > >
> > > > oh yeah, back to my problem....
> > > >
> > > > Some of you may remember me posting last week about my brake issues due
> > > > to a sticking e-brake cable, I wonder if driving with the rear brakes
> > > > locked then out of adjustment put to much stress on my resevoir. I
> > > > looked online at NAPA and see many different choices for Master
> > > > Cylinders for manual brakes. What are the differences besides
> > > > new/rebuilt? Is there a big difference between a new and rebuilt unit?
> > >
> > > --
> > > o_o_o_o
> > > /| ,[_____],
> > > |ŻŻŻL --O|||||||O-
> > > ()_)Ż()_) ŻŻŻŻŻ )_)
>
> --
> o_o_o_o
> /| ,[_____],
> |ŻŻŻL --O|||||||O-
> ()_)Ż()_) ŻŻŻŻŻ )_)