Jim85CJ

I pinched the line... no change in idle. I pulled the line out of the
T... there is strong suction there (http://tinyurl.com/2yhjg)...

Mike Romain wrote:
> That means you have the pulse air tube type of emissions, right? The
> thing with the two tubes coming out of the cat going into the bottom of
> the air filter right?
>
> Are you set up exactly like the vac-mcu.gif?
>
> If that is the case, then you have one more place to pinch a line. At
> idle pinch the line going into the decel valve from the PCV.
>
> Mike
>
> Jim85CJ wrote:
>
>>Let me correct this. The line coming out of the back of the carb goes
>>into a T. One line off the T goes to the cannister. The other line
>>goes to another T. One line from this T goes to the PCV; the other line
>>goes into this thingy near the firewall. There are 4 lines into this
>>thingy (what is it? Is this the solenoid??). The pinch test does not
>>affect idle. I pulled the PCV valve out of the valve cover and it
>>appears to be sucking OK but I don't know how hard it should suck.
>>
>>Jim85CJ wrote:
>>
>>
>>>I have a line coming out of the carb directly into a T so I guess the
>>>solenoid is gone already.
>>>
>>>Jim85CJ wrote:
>>>
>>>
>>>>OK. I'll check the whole line next time I can get greasy hopefully
>>>>tonight.
>>>>
>>>>Mike Romain wrote:
>>>>
>>>>
>>>>>It makes no real matter if you test it hot or cold, just do it at idle.
>>>>>
>>>>>The purge valve is on top of the canister and is a round button like
>>>>>thing with one vacuum line going to it. it has a 5 cent piece of rubber
>>>>>in it that tears killing the canister.
>>>>>
>>>>>I am not so sure yours is dead. That solenoid could be causing all the
>>>>>oil blow. There also is a molded elbow back there near the valve
>>>>>cover. It is rubber and gets soft with oil and can collapse under
>>>>>suction shutting off the PCV as well.
>>>>>
>>>>>Mike
>>>>>
>>>>>Jim85CJ wrote:
>>>>>
>>>>>
>>>>>>Thanks mike... I'll put in a T when I can find the time to get under
>>>>>>the
>>>>>>hood and let you know the results. Should I do the pinch test hot or
>>>>>>cold or both?
>>>>>>
>>>>>>Is the purge valve part of the cannister?
>>>>>>
>>>>>>Mike Romain wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>>The reason I am asking is your description sounds like maybe a dead
>>>>>>>canister with the solenoid still functioning.
>>>>>>>
>>>>>>>The canister gets its purge signal from a ported vacuum nipple via the
>>>>>>>CTO valve and should only be turned on when hot and at speed.
>>>>>>>
>>>>>>>The sucking cold and not hot sounds like the solenoid is all that is
>>>>>>>'turning on or off' the canister or it could just be the computer
>>>>>>>adjusting the mix for suction levels.
>>>>>>>
>>>>>>>This could mean the purge valve is shot which can **** an amazing
>>>>>>>amount
>>>>>>>of oil into the air filter. Putting a 'T' fitting in will allow
>>>>>>>you to
>>>>>>>find out for sure.
>>>>>>>
>>>>>>>There is no way to 'bypass' the canister. You can just vent the gas
>>>>>>>tank to the open air in a pinch, but that creates bad fumes.
>>>>>>>
>>>>>>>Mike
>>>>>>>
>>>>>>>Jim85CJ wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>>I'll go with Solenoid... I'll put in a T this week...
>>>>>>>>
>>>>>>>>Mike Romain wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>>Lets start off by asking if you have a t-fitting or a solenoid
>>>>>>>>>behind
>>>>>>>>>the carb on the PCV lines.
>>>>>>>>>
>>>>>>>>>Mike
>>>>>>>>>
>>>>>>>>>Jim85CJ wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>>Mike Romain -- You mentioned (when discussing oil in the air
>>>>>>>>>>filter):
>>>>>>>>>>"Then trace the line to the T fitting or solenoid behind the
>>>>>>>>>>carb. The
>>>>>>>>>>solenoid is a failed design and is recalled. The fix is a T
>>>>>>>>>>fitting.
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>>From this part, trace the other line to the top of the charcoal
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>>canister. At idle pinch this line to the canister closed. If
>>>>>>>>>>the idle
>>>>>>>>>>changes, the canister is shot."
>>>>>>>>>>
>>>>>>>>>>I pinched that line with the engine idling (but cold) and the
>>>>>>>>>>idle went
>>>>>>>>>>up. Today, after driving about 40 minutes, I pinched the line
>>>>>>>>>>and the
>>>>>>>>>>idle didn't do anything. In your opinion, is the canister shot or
>>>>>>>>>>not??? I do get suction at the PCV valvebut I'm not sure if it's
>>>>>>>>>>enough. If the canister is shot, can I bypass it? If so, how?
>>>>>>>>>>
>>>>>>>>>>Jim85CJ wrote:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>>where can I find an evaporation canister (also heard it called
>>>>>>>>>>>a charcol
>>>>>>>>>>>cannister)for an 85 CJ7
>>>>>>>>>>>(http://home.sprynet.com/~dale02/evaporat.htm?
>>>>>>>>>>>Apparently I need to replace mine. Am I stuck going to a Jeep
>>>>>>>>>>>dealer?
>>>>>>>>>>>
>>>>

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

Just the one that came off my '68 CJ-5:
http://www.----------.com/vacValve.jpg Yours apparently is different as
shown a Dale's site: http://home.sprynet.com/~dale02/cto.htm
God Bless America, ßill O|||||||O
mailto:--------------------

Jim85CJ wrote:
>
> Bill, do you have a picture of a CTO valve?

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

Just the one that came off my '68 CJ-5:
http://www.----------.com/vacValve.jpg Yours apparently is different as
shown a Dale's site: http://home.sprynet.com/~dale02/cto.htm
God Bless America, ßill O|||||||O
mailto:--------------------

Jim85CJ wrote:
>
> Bill, do you have a picture of a CTO valve?

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

Just the one that came off my '68 CJ-5:
http://www.----------.com/vacValve.jpg Yours apparently is different as
shown a Dale's site: http://home.sprynet.com/~dale02/cto.htm
God Bless America, ßill O|||||||O
mailto:--------------------

Jim85CJ wrote:
>
> Bill, do you have a picture of a CTO valve?

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

Just the one that came off my '68 CJ-5:
http://www.----------.com/vacValve.jpg Yours apparently is different as
shown a Dale's site: http://home.sprynet.com/~dale02/cto.htm
God Bless America, ßill O|||||||O
mailto:--------------------

Jim85CJ wrote:
>
> Bill, do you have a picture of a CTO valve?

Mike Romain

Well....

That likely means your engine is getting a bit tired then. You might
want to go up a thickness in oil, especially in hot weather.

The PCV rattles freely right?

I know folks that switch to the K+N air filters (oil soaked type) so
they don't have to worry about the oil wrecking the paper filter when
they get old like that.

Have you done a compression test? That will give you an idea on the
ring wear. Test it dry, then put a shot of oil in the plug hole and
test it again. If it comes up lots, the rings are tired.

Even so, both of my engines have occasionally puked a pile of oil into
the air filter on a long hard trip. I think the PCV's maybe get sticky
now and then. My old engine was put away with 145 psi all across and
this engine is the same.

Mike

Jim85CJ wrote:
>
> I pinched the line... no change in idle. I pulled the line out of the
> T... there is strong suction there (http://tinyurl.com/2yhjg)...
>
> Mike Romain wrote:
> > That means you have the pulse air tube type of emissions, right? The
> > thing with the two tubes coming out of the cat going into the bottom of
> > the air filter right?
> >
> > Are you set up exactly like the vac-mcu.gif?
> >
> > If that is the case, then you have one more place to pinch a line. At
> > idle pinch the line going into the decel valve from the PCV.
> >
> > Mike
> >
> > Jim85CJ wrote:
> >
> >>Let me correct this. The line coming out of the back of the carb goes
> >>into a T. One line off the T goes to the cannister. The other line
> >>goes to another T. One line from this T goes to the PCV; the other line
> >>goes into this thingy near the firewall. There are 4 lines into this
> >>thingy (what is it? Is this the solenoid??). The pinch test does not
> >>affect idle. I pulled the PCV valve out of the valve cover and it
> >>appears to be sucking OK but I don't know how hard it should suck.
> >>
> >>Jim85CJ wrote:
> >>
> >>
> >>>I have a line coming out of the carb directly into a T so I guess the
> >>>solenoid is gone already.
> >>>
> >>>Jim85CJ wrote:
> >>>
> >>>
> >>>>OK. I'll check the whole line next time I can get greasy hopefully
> >>>>tonight.
> >>>>
> >>>>Mike Romain wrote:
> >>>>
> >>>>
> >>>>>It makes no real matter if you test it hot or cold, just do it at idle.
> >>>>>
> >>>>>The purge valve is on top of the canister and is a round button like
> >>>>>thing with one vacuum line going to it. it has a 5 cent piece of rubber
> >>>>>in it that tears killing the canister.
> >>>>>
> >>>>>I am not so sure yours is dead. That solenoid could be causing all the
> >>>>>oil blow. There also is a molded elbow back there near the valve
> >>>>>cover. It is rubber and gets soft with oil and can collapse under
> >>>>>suction shutting off the PCV as well.
> >>>>>
> >>>>>Mike
> >>>>>
> >>>>>Jim85CJ wrote:
> >>>>>
> >>>>>
> >>>>>>Thanks mike... I'll put in a T when I can find the time to get under
> >>>>>>the
> >>>>>>hood and let you know the results. Should I do the pinch test hot or
> >>>>>>cold or both?
> >>>>>>
> >>>>>>Is the purge valve part of the cannister?
> >>>>>>
> >>>>>>Mike Romain wrote:
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>>The reason I am asking is your description sounds like maybe a dead
> >>>>>>>canister with the solenoid still functioning.
> >>>>>>>
> >>>>>>>The canister gets its purge signal from a ported vacuum nipple via the
> >>>>>>>CTO valve and should only be turned on when hot and at speed.
> >>>>>>>
> >>>>>>>The sucking cold and not hot sounds like the solenoid is all that is
> >>>>>>>'turning on or off' the canister or it could just be the computer
> >>>>>>>adjusting the mix for suction levels.
> >>>>>>>
> >>>>>>>This could mean the purge valve is shot which can **** an amazing
> >>>>>>>amount
> >>>>>>>of oil into the air filter. Putting a 'T' fitting in will allow
> >>>>>>>you to
> >>>>>>>find out for sure.
> >>>>>>>
> >>>>>>>There is no way to 'bypass' the canister. You can just vent the gas
> >>>>>>>tank to the open air in a pinch, but that creates bad fumes.
> >>>>>>>
> >>>>>>>Mike
> >>>>>>>
> >>>>>>>Jim85CJ wrote:
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>>>I'll go with Solenoid... I'll put in a T this week...
> >>>>>>>>
> >>>>>>>>Mike Romain wrote:
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>>Lets start off by asking if you have a t-fitting or a solenoid
> >>>>>>>>>behind
> >>>>>>>>>the carb on the PCV lines.
> >>>>>>>>>
> >>>>>>>>>Mike
> >>>>>>>>>
> >>>>>>>>>Jim85CJ wrote:
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>>Mike Romain -- You mentioned (when discussing oil in the air
> >>>>>>>>>>filter):
> >>>>>>>>>>"Then trace the line to the T fitting or solenoid behind the
> >>>>>>>>>>carb. The
> >>>>>>>>>>solenoid is a failed design and is recalled. The fix is a T
> >>>>>>>>>>fitting.
> >>>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>>From this part, trace the other line to the top of the charcoal
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>>canister. At idle pinch this line to the canister closed. If
> >>>>>>>>>>the idle
> >>>>>>>>>>changes, the canister is shot."
> >>>>>>>>>>
> >>>>>>>>>>I pinched that line with the engine idling (but cold) and the
> >>>>>>>>>>idle went
> >>>>>>>>>>up. Today, after driving about 40 minutes, I pinched the line
> >>>>>>>>>>and the
> >>>>>>>>>>idle didn't do anything. In your opinion, is the canister shot or
> >>>>>>>>>>not??? I do get suction at the PCV valvebut I'm not sure if it's
> >>>>>>>>>>enough. If the canister is shot, can I bypass it? If so, how?
> >>>>>>>>>>
> >>>>>>>>>>Jim85CJ wrote:
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>>where can I find an evaporation canister (also heard it called
> >>>>>>>>>>>a charcol
> >>>>>>>>>>>cannister)for an 85 CJ7
> >>>>>>>>>>>(http://home.sprynet.com/~dale02/evaporat.htm?
> >>>>>>>>>>>Apparently I need to replace mine. Am I stuck going to a Jeep
> >>>>>>>>>>>dealer?
> >>>>>>>>>>>
> >>>>

Mike Romain

Well....

That likely means your engine is getting a bit tired then. You might
want to go up a thickness in oil, especially in hot weather.

The PCV rattles freely right?

I know folks that switch to the K+N air filters (oil soaked type) so
they don't have to worry about the oil wrecking the paper filter when
they get old like that.

Have you done a compression test? That will give you an idea on the
ring wear. Test it dry, then put a shot of oil in the plug hole and
test it again. If it comes up lots, the rings are tired.

Even so, both of my engines have occasionally puked a pile of oil into
the air filter on a long hard trip. I think the PCV's maybe get sticky
now and then. My old engine was put away with 145 psi all across and
this engine is the same.

Mike

Jim85CJ wrote:
>
> I pinched the line... no change in idle. I pulled the line out of the
> T... there is strong suction there (http://tinyurl.com/2yhjg)...
>
> Mike Romain wrote:
> > That means you have the pulse air tube type of emissions, right? The
> > thing with the two tubes coming out of the cat going into the bottom of
> > the air filter right?
> >
> > Are you set up exactly like the vac-mcu.gif?
> >
> > If that is the case, then you have one more place to pinch a line. At
> > idle pinch the line going into the decel valve from the PCV.
> >
> > Mike
> >
> > Jim85CJ wrote:
> >
> >>Let me correct this. The line coming out of the back of the carb goes
> >>into a T. One line off the T goes to the cannister. The other line
> >>goes to another T. One line from this T goes to the PCV; the other line
> >>goes into this thingy near the firewall. There are 4 lines into this
> >>thingy (what is it? Is this the solenoid??). The pinch test does not
> >>affect idle. I pulled the PCV valve out of the valve cover and it
> >>appears to be sucking OK but I don't know how hard it should suck.
> >>
> >>Jim85CJ wrote:
> >>
> >>
> >>>I have a line coming out of the carb directly into a T so I guess the
> >>>solenoid is gone already.
> >>>
> >>>Jim85CJ wrote:
> >>>
> >>>
> >>>>OK. I'll check the whole line next time I can get greasy hopefully
> >>>>tonight.
> >>>>
> >>>>Mike Romain wrote:
> >>>>
> >>>>
> >>>>>It makes no real matter if you test it hot or cold, just do it at idle.
> >>>>>
> >>>>>The purge valve is on top of the canister and is a round button like
> >>>>>thing with one vacuum line going to it. it has a 5 cent piece of rubber
> >>>>>in it that tears killing the canister.
> >>>>>
> >>>>>I am not so sure yours is dead. That solenoid could be causing all the
> >>>>>oil blow. There also is a molded elbow back there near the valve
> >>>>>cover. It is rubber and gets soft with oil and can collapse under
> >>>>>suction shutting off the PCV as well.
> >>>>>
> >>>>>Mike
> >>>>>
> >>>>>Jim85CJ wrote:
> >>>>>
> >>>>>
> >>>>>>Thanks mike... I'll put in a T when I can find the time to get under
> >>>>>>the
> >>>>>>hood and let you know the results. Should I do the pinch test hot or
> >>>>>>cold or both?
> >>>>>>
> >>>>>>Is the purge valve part of the cannister?
> >>>>>>
> >>>>>>Mike Romain wrote:
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>>The reason I am asking is your description sounds like maybe a dead
> >>>>>>>canister with the solenoid still functioning.
> >>>>>>>
> >>>>>>>The canister gets its purge signal from a ported vacuum nipple via the
> >>>>>>>CTO valve and should only be turned on when hot and at speed.
> >>>>>>>
> >>>>>>>The sucking cold and not hot sounds like the solenoid is all that is
> >>>>>>>'turning on or off' the canister or it could just be the computer
> >>>>>>>adjusting the mix for suction levels.
> >>>>>>>
> >>>>>>>This could mean the purge valve is shot which can **** an amazing
> >>>>>>>amount
> >>>>>>>of oil into the air filter. Putting a 'T' fitting in will allow
> >>>>>>>you to
> >>>>>>>find out for sure.
> >>>>>>>
> >>>>>>>There is no way to 'bypass' the canister. You can just vent the gas
> >>>>>>>tank to the open air in a pinch, but that creates bad fumes.
> >>>>>>>
> >>>>>>>Mike
> >>>>>>>
> >>>>>>>Jim85CJ wrote:
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>>>I'll go with Solenoid... I'll put in a T this week...
> >>>>>>>>
> >>>>>>>>Mike Romain wrote:
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>>Lets start off by asking if you have a t-fitting or a solenoid
> >>>>>>>>>behind
> >>>>>>>>>the carb on the PCV lines.
> >>>>>>>>>
> >>>>>>>>>Mike
> >>>>>>>>>
> >>>>>>>>>Jim85CJ wrote:
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>>Mike Romain -- You mentioned (when discussing oil in the air
> >>>>>>>>>>filter):
> >>>>>>>>>>"Then trace the line to the T fitting or solenoid behind the
> >>>>>>>>>>carb. The
> >>>>>>>>>>solenoid is a failed design and is recalled. The fix is a T
> >>>>>>>>>>fitting.
> >>>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>>From this part, trace the other line to the top of the charcoal
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>>canister. At idle pinch this line to the canister closed. If
> >>>>>>>>>>the idle
> >>>>>>>>>>changes, the canister is shot."
> >>>>>>>>>>
> >>>>>>>>>>I pinched that line with the engine idling (but cold) and the
> >>>>>>>>>>idle went
> >>>>>>>>>>up. Today, after driving about 40 minutes, I pinched the line
> >>>>>>>>>>and the
> >>>>>>>>>>idle didn't do anything. In your opinion, is the canister shot or
> >>>>>>>>>>not??? I do get suction at the PCV valvebut I'm not sure if it's
> >>>>>>>>>>enough. If the canister is shot, can I bypass it? If so, how?
> >>>>>>>>>>
> >>>>>>>>>>Jim85CJ wrote:
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>>where can I find an evaporation canister (also heard it called
> >>>>>>>>>>>a charcol
> >>>>>>>>>>>cannister)for an 85 CJ7
> >>>>>>>>>>>(http://home.sprynet.com/~dale02/evaporat.htm?
> >>>>>>>>>>>Apparently I need to replace mine. Am I stuck going to a Jeep
> >>>>>>>>>>>dealer?
> >>>>>>>>>>>
> >>>>

Mike Romain

Well....

That likely means your engine is getting a bit tired then. You might
want to go up a thickness in oil, especially in hot weather.

The PCV rattles freely right?

I know folks that switch to the K+N air filters (oil soaked type) so
they don't have to worry about the oil wrecking the paper filter when
they get old like that.

Have you done a compression test? That will give you an idea on the
ring wear. Test it dry, then put a shot of oil in the plug hole and
test it again. If it comes up lots, the rings are tired.

Even so, both of my engines have occasionally puked a pile of oil into
the air filter on a long hard trip. I think the PCV's maybe get sticky
now and then. My old engine was put away with 145 psi all across and
this engine is the same.

Mike

Jim85CJ wrote:
>
> I pinched the line... no change in idle. I pulled the line out of the
> T... there is strong suction there (http://tinyurl.com/2yhjg)...
>
> Mike Romain wrote:
> > That means you have the pulse air tube type of emissions, right? The
> > thing with the two tubes coming out of the cat going into the bottom of
> > the air filter right?
> >
> > Are you set up exactly like the vac-mcu.gif?
> >
> > If that is the case, then you have one more place to pinch a line. At
> > idle pinch the line going into the decel valve from the PCV.
> >
> > Mike
> >
> > Jim85CJ wrote:
> >
> >>Let me correct this. The line coming out of the back of the carb goes
> >>into a T. One line off the T goes to the cannister. The other line
> >>goes to another T. One line from this T goes to the PCV; the other line
> >>goes into this thingy near the firewall. There are 4 lines into this
> >>thingy (what is it? Is this the solenoid??). The pinch test does not
> >>affect idle. I pulled the PCV valve out of the valve cover and it
> >>appears to be sucking OK but I don't know how hard it should suck.
> >>
> >>Jim85CJ wrote:
> >>
> >>
> >>>I have a line coming out of the carb directly into a T so I guess the
> >>>solenoid is gone already.
> >>>
> >>>Jim85CJ wrote:
> >>>
> >>>
> >>>>OK. I'll check the whole line next time I can get greasy hopefully
> >>>>tonight.
> >>>>
> >>>>Mike Romain wrote:
> >>>>
> >>>>
> >>>>>It makes no real matter if you test it hot or cold, just do it at idle.
> >>>>>
> >>>>>The purge valve is on top of the canister and is a round button like
> >>>>>thing with one vacuum line going to it. it has a 5 cent piece of rubber
> >>>>>in it that tears killing the canister.
> >>>>>
> >>>>>I am not so sure yours is dead. That solenoid could be causing all the
> >>>>>oil blow. There also is a molded elbow back there near the valve
> >>>>>cover. It is rubber and gets soft with oil and can collapse under
> >>>>>suction shutting off the PCV as well.
> >>>>>
> >>>>>Mike
> >>>>>
> >>>>>Jim85CJ wrote:
> >>>>>
> >>>>>
> >>>>>>Thanks mike... I'll put in a T when I can find the time to get under
> >>>>>>the
> >>>>>>hood and let you know the results. Should I do the pinch test hot or
> >>>>>>cold or both?
> >>>>>>
> >>>>>>Is the purge valve part of the cannister?
> >>>>>>
> >>>>>>Mike Romain wrote:
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>>The reason I am asking is your description sounds like maybe a dead
> >>>>>>>canister with the solenoid still functioning.
> >>>>>>>
> >>>>>>>The canister gets its purge signal from a ported vacuum nipple via the
> >>>>>>>CTO valve and should only be turned on when hot and at speed.
> >>>>>>>
> >>>>>>>The sucking cold and not hot sounds like the solenoid is all that is
> >>>>>>>'turning on or off' the canister or it could just be the computer
> >>>>>>>adjusting the mix for suction levels.
> >>>>>>>
> >>>>>>>This could mean the purge valve is shot which can **** an amazing
> >>>>>>>amount
> >>>>>>>of oil into the air filter. Putting a 'T' fitting in will allow
> >>>>>>>you to
> >>>>>>>find out for sure.
> >>>>>>>
> >>>>>>>There is no way to 'bypass' the canister. You can just vent the gas
> >>>>>>>tank to the open air in a pinch, but that creates bad fumes.
> >>>>>>>
> >>>>>>>Mike
> >>>>>>>
> >>>>>>>Jim85CJ wrote:
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>>>I'll go with Solenoid... I'll put in a T this week...
> >>>>>>>>
> >>>>>>>>Mike Romain wrote:
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>>Lets start off by asking if you have a t-fitting or a solenoid
> >>>>>>>>>behind
> >>>>>>>>>the carb on the PCV lines.
> >>>>>>>>>
> >>>>>>>>>Mike
> >>>>>>>>>
> >>>>>>>>>Jim85CJ wrote:
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>>Mike Romain -- You mentioned (when discussing oil in the air
> >>>>>>>>>>filter):
> >>>>>>>>>>"Then trace the line to the T fitting or solenoid behind the
> >>>>>>>>>>carb. The
> >>>>>>>>>>solenoid is a failed design and is recalled. The fix is a T
> >>>>>>>>>>fitting.
> >>>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>>From this part, trace the other line to the top of the charcoal
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>>canister. At idle pinch this line to the canister closed. If
> >>>>>>>>>>the idle
> >>>>>>>>>>changes, the canister is shot."
> >>>>>>>>>>
> >>>>>>>>>>I pinched that line with the engine idling (but cold) and the
> >>>>>>>>>>idle went
> >>>>>>>>>>up. Today, after driving about 40 minutes, I pinched the line
> >>>>>>>>>>and the
> >>>>>>>>>>idle didn't do anything. In your opinion, is the canister shot or
> >>>>>>>>>>not??? I do get suction at the PCV valvebut I'm not sure if it's
> >>>>>>>>>>enough. If the canister is shot, can I bypass it? If so, how?
> >>>>>>>>>>
> >>>>>>>>>>Jim85CJ wrote:
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>>where can I find an evaporation canister (also heard it called
> >>>>>>>>>>>a charcol
> >>>>>>>>>>>cannister)for an 85 CJ7
> >>>>>>>>>>>(http://home.sprynet.com/~dale02/evaporat.htm?
> >>>>>>>>>>>Apparently I need to replace mine. Am I stuck going to a Jeep
> >>>>>>>>>>>dealer?
> >>>>>>>>>>>
> >>>>

Mike Romain

Well....

That likely means your engine is getting a bit tired then. You might
want to go up a thickness in oil, especially in hot weather.

The PCV rattles freely right?

I know folks that switch to the K+N air filters (oil soaked type) so
they don't have to worry about the oil wrecking the paper filter when
they get old like that.

Have you done a compression test? That will give you an idea on the
ring wear. Test it dry, then put a shot of oil in the plug hole and
test it again. If it comes up lots, the rings are tired.

Even so, both of my engines have occasionally puked a pile of oil into
the air filter on a long hard trip. I think the PCV's maybe get sticky
now and then. My old engine was put away with 145 psi all across and
this engine is the same.

Mike

Jim85CJ wrote:
>
> I pinched the line... no change in idle. I pulled the line out of the
> T... there is strong suction there (http://tinyurl.com/2yhjg)...
>
> Mike Romain wrote:
> > That means you have the pulse air tube type of emissions, right? The
> > thing with the two tubes coming out of the cat going into the bottom of
> > the air filter right?
> >
> > Are you set up exactly like the vac-mcu.gif?
> >
> > If that is the case, then you have one more place to pinch a line. At
> > idle pinch the line going into the decel valve from the PCV.
> >
> > Mike
> >
> > Jim85CJ wrote:
> >
> >>Let me correct this. The line coming out of the back of the carb goes
> >>into a T. One line off the T goes to the cannister. The other line
> >>goes to another T. One line from this T goes to the PCV; the other line
> >>goes into this thingy near the firewall. There are 4 lines into this
> >>thingy (what is it? Is this the solenoid??). The pinch test does not
> >>affect idle. I pulled the PCV valve out of the valve cover and it
> >>appears to be sucking OK but I don't know how hard it should suck.
> >>
> >>Jim85CJ wrote:
> >>
> >>
> >>>I have a line coming out of the carb directly into a T so I guess the
> >>>solenoid is gone already.
> >>>
> >>>Jim85CJ wrote:
> >>>
> >>>
> >>>>OK. I'll check the whole line next time I can get greasy hopefully
> >>>>tonight.
> >>>>
> >>>>Mike Romain wrote:
> >>>>
> >>>>
> >>>>>It makes no real matter if you test it hot or cold, just do it at idle.
> >>>>>
> >>>>>The purge valve is on top of the canister and is a round button like
> >>>>>thing with one vacuum line going to it. it has a 5 cent piece of rubber
> >>>>>in it that tears killing the canister.
> >>>>>
> >>>>>I am not so sure yours is dead. That solenoid could be causing all the
> >>>>>oil blow. There also is a molded elbow back there near the valve
> >>>>>cover. It is rubber and gets soft with oil and can collapse under
> >>>>>suction shutting off the PCV as well.
> >>>>>
> >>>>>Mike
> >>>>>
> >>>>>Jim85CJ wrote:
> >>>>>
> >>>>>
> >>>>>>Thanks mike... I'll put in a T when I can find the time to get under
> >>>>>>the
> >>>>>>hood and let you know the results. Should I do the pinch test hot or
> >>>>>>cold or both?
> >>>>>>
> >>>>>>Is the purge valve part of the cannister?
> >>>>>>
> >>>>>>Mike Romain wrote:
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>>The reason I am asking is your description sounds like maybe a dead
> >>>>>>>canister with the solenoid still functioning.
> >>>>>>>
> >>>>>>>The canister gets its purge signal from a ported vacuum nipple via the
> >>>>>>>CTO valve and should only be turned on when hot and at speed.
> >>>>>>>
> >>>>>>>The sucking cold and not hot sounds like the solenoid is all that is
> >>>>>>>'turning on or off' the canister or it could just be the computer
> >>>>>>>adjusting the mix for suction levels.
> >>>>>>>
> >>>>>>>This could mean the purge valve is shot which can **** an amazing
> >>>>>>>amount
> >>>>>>>of oil into the air filter. Putting a 'T' fitting in will allow
> >>>>>>>you to
> >>>>>>>find out for sure.
> >>>>>>>
> >>>>>>>There is no way to 'bypass' the canister. You can just vent the gas
> >>>>>>>tank to the open air in a pinch, but that creates bad fumes.
> >>>>>>>
> >>>>>>>Mike
> >>>>>>>
> >>>>>>>Jim85CJ wrote:
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>>>I'll go with Solenoid... I'll put in a T this week...
> >>>>>>>>
> >>>>>>>>Mike Romain wrote:
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>>Lets start off by asking if you have a t-fitting or a solenoid
> >>>>>>>>>behind
> >>>>>>>>>the carb on the PCV lines.
> >>>>>>>>>
> >>>>>>>>>Mike
> >>>>>>>>>
> >>>>>>>>>Jim85CJ wrote:
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>>Mike Romain -- You mentioned (when discussing oil in the air
> >>>>>>>>>>filter):
> >>>>>>>>>>"Then trace the line to the T fitting or solenoid behind the
> >>>>>>>>>>carb. The
> >>>>>>>>>>solenoid is a failed design and is recalled. The fix is a T
> >>>>>>>>>>fitting.
> >>>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>>From this part, trace the other line to the top of the charcoal
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>>canister. At idle pinch this line to the canister closed. If
> >>>>>>>>>>the idle
> >>>>>>>>>>changes, the canister is shot."
> >>>>>>>>>>
> >>>>>>>>>>I pinched that line with the engine idling (but cold) and the
> >>>>>>>>>>idle went
> >>>>>>>>>>up. Today, after driving about 40 minutes, I pinched the line
> >>>>>>>>>>and the
> >>>>>>>>>>idle didn't do anything. In your opinion, is the canister shot or
> >>>>>>>>>>not??? I do get suction at the PCV valvebut I'm not sure if it's
> >>>>>>>>>>enough. If the canister is shot, can I bypass it? If so, how?
> >>>>>>>>>>
> >>>>>>>>>>Jim85CJ wrote:
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>>>where can I find an evaporation canister (also heard it called
> >>>>>>>>>>>a charcol
> >>>>>>>>>>>cannister)for an 85 CJ7
> >>>>>>>>>>>(http://home.sprynet.com/~dale02/evaporat.htm?
> >>>>>>>>>>>Apparently I need to replace mine. Am I stuck going to a Jeep
> >>>>>>>>>>>dealer?
> >>>>>>>>>>>
> >>>>