Re: Clogged PCV tube
 

The clumps are the way the solvent breaks it away, kind of like if
you've every rattle can painted over regular oil paint, the surface
turns to alligator skin pulling apart.
The once every three thousand miles is an regular interval from
new: http://www.----------.com/lubeschedule.pdf
God Bless America, ßill O|||||||O
mailto:--------------------

TJM wrote:
>
> I checked the oil cap and it has a fair amount of "oily crud" on it, but not
> sure if I see any "clumps". Then again, I have never taken the time to grab
> some paint thinner and clean the oil cap, so I imagine its just 143K worth
> of "crud buildup". I guess the only way to really find out is to take off
> the valve cover and have a look-see for myself. Taking off the cover looks
> relatively painless....any pitfalls I should be aware of? Also, how do I
> re-seal it.....RTV and/or a gasket?
>
> I had a change about 2500 mi. ago, so I will take your advice and change
> every 3K for a bit.

Re: Clogged PCV tube
 

The clumps are the way the solvent breaks it away, kind of like if
you've every rattle can painted over regular oil paint, the surface
turns to alligator skin pulling apart.
The once every three thousand miles is an regular interval from
new: http://www.----------.com/lubeschedule.pdf
God Bless America, ßill O|||||||O
mailto:--------------------

TJM wrote:
>
> I checked the oil cap and it has a fair amount of "oily crud" on it, but not
> sure if I see any "clumps". Then again, I have never taken the time to grab
> some paint thinner and clean the oil cap, so I imagine its just 143K worth
> of "crud buildup". I guess the only way to really find out is to take off
> the valve cover and have a look-see for myself. Taking off the cover looks
> relatively painless....any pitfalls I should be aware of? Also, how do I
> re-seal it.....RTV and/or a gasket?
>
> I had a change about 2500 mi. ago, so I will take your advice and change
> every 3K for a bit.

Re: Clogged PCV tube
 

The clumps are the way the solvent breaks it away, kind of like if
you've every rattle can painted over regular oil paint, the surface
turns to alligator skin pulling apart.
The once every three thousand miles is an regular interval from
new: http://www.----------.com/lubeschedule.pdf
God Bless America, ßill O|||||||O
mailto:--------------------

TJM wrote:
>
> I checked the oil cap and it has a fair amount of "oily crud" on it, but not
> sure if I see any "clumps". Then again, I have never taken the time to grab
> some paint thinner and clean the oil cap, so I imagine its just 143K worth
> of "crud buildup". I guess the only way to really find out is to take off
> the valve cover and have a look-see for myself. Taking off the cover looks
> relatively painless....any pitfalls I should be aware of? Also, how do I
> re-seal it.....RTV and/or a gasket?
>
> I had a change about 2500 mi. ago, so I will take your advice and change
> every 3K for a bit.

Re: Clogged PCV tube
 

TJM did pass the time by typing:

> I checked the oil cap and it has a fair amount of "oily crud" on it, but not
> sure if I see any "clumps". Then again, I have never taken the time to grab
> some paint thinner and clean the oil cap, so I imagine its just 143K worth
> of "crud buildup". I guess the only way to really find out is to take off
> the valve cover and have a look-see for myself. Taking off the cover looks
> relatively painless....any pitfalls I should be aware of? Also, how do I
> re-seal it.....RTV and/or a gasket?

It uses a form-in-place gasket that should be reusable if it stays in one piece.
All you need to do is skin another coat of Permatex or similar RTV sealant, fill
in any gaps or cracks, and put it back. If the gasket material comes off or is
in real bad shape you will have to lay down another bead. Jeep sells the gasket
material but I've used the stuff from NAPA with good results. Just follow the
directions and make sure the surfaces are clean of oil (wipe with alcohol).
The nuts/studs only go down to 75 in.lbs. Make sure it's an even bead otherwise
you will get leaks. (that's the tricky part)

--
DougW

Re: Clogged PCV tube
 

TJM did pass the time by typing:

> I checked the oil cap and it has a fair amount of "oily crud" on it, but not
> sure if I see any "clumps". Then again, I have never taken the time to grab
> some paint thinner and clean the oil cap, so I imagine its just 143K worth
> of "crud buildup". I guess the only way to really find out is to take off
> the valve cover and have a look-see for myself. Taking off the cover looks
> relatively painless....any pitfalls I should be aware of? Also, how do I
> re-seal it.....RTV and/or a gasket?

It uses a form-in-place gasket that should be reusable if it stays in one piece.
All you need to do is skin another coat of Permatex or similar RTV sealant, fill
in any gaps or cracks, and put it back. If the gasket material comes off or is
in real bad shape you will have to lay down another bead. Jeep sells the gasket
material but I've used the stuff from NAPA with good results. Just follow the
directions and make sure the surfaces are clean of oil (wipe with alcohol).
The nuts/studs only go down to 75 in.lbs. Make sure it's an even bead otherwise
you will get leaks. (that's the tricky part)

--
DougW

Re: Clogged PCV tube
 

TJM did pass the time by typing:

> I checked the oil cap and it has a fair amount of "oily crud" on it, but not
> sure if I see any "clumps". Then again, I have never taken the time to grab
> some paint thinner and clean the oil cap, so I imagine its just 143K worth
> of "crud buildup". I guess the only way to really find out is to take off
> the valve cover and have a look-see for myself. Taking off the cover looks
> relatively painless....any pitfalls I should be aware of? Also, how do I
> re-seal it.....RTV and/or a gasket?

It uses a form-in-place gasket that should be reusable if it stays in one piece.
All you need to do is skin another coat of Permatex or similar RTV sealant, fill
in any gaps or cracks, and put it back. If the gasket material comes off or is
in real bad shape you will have to lay down another bead. Jeep sells the gasket
material but I've used the stuff from NAPA with good results. Just follow the
directions and make sure the surfaces are clean of oil (wipe with alcohol).
The nuts/studs only go down to 75 in.lbs. Make sure it's an even bead otherwise
you will get leaks. (that's the tricky part)

--
DougW

Re: Clogged PCV tube
 

TJM did pass the time by typing:

> I checked the oil cap and it has a fair amount of "oily crud" on it, but not
> sure if I see any "clumps". Then again, I have never taken the time to grab
> some paint thinner and clean the oil cap, so I imagine its just 143K worth
> of "crud buildup". I guess the only way to really find out is to take off
> the valve cover and have a look-see for myself. Taking off the cover looks
> relatively painless....any pitfalls I should be aware of? Also, how do I
> re-seal it.....RTV and/or a gasket?

It uses a form-in-place gasket that should be reusable if it stays in one piece.
All you need to do is skin another coat of Permatex or similar RTV sealant, fill
in any gaps or cracks, and put it back. If the gasket material comes off or is
in real bad shape you will have to lay down another bead. Jeep sells the gasket
material but I've used the stuff from NAPA with good results. Just follow the
directions and make sure the surfaces are clean of oil (wipe with alcohol).
The nuts/studs only go down to 75 in.lbs. Make sure it's an even bead otherwise
you will get leaks. (that's the tricky part)

--
DougW

Re: Clogged PCV tube
 

No, excessive crankcase pressures are not an urban legend. It usually goes
along the lines of a leaking rear main seal, which you fix, then a week
later the front crank seal, which you fix, then a week after that, the valve
cover gasket, which you fix, but by now you realize that the clogged PCV is
the root cause of all of your problems, and you fix that, too. Ask me how I
know.

Jerry


"TJM" <tjm@nospam> wrote in message
news:m7adnZuL7--OBgPdRVn-sA@comcast.com...
> > > The question I have now is - should I buy a bottle of oil dye and see
if
> > > there are any leaks caused by this PCV cloggage?
> >
> > That won't cause an oil leak, just excess oil on your air filter.
> > No reason to use dye.
>
> So the excessive crankcase pressures are just a myth? I've perused some
> websites that seem to indicate long-standing PCV cloggage can cause
massive
> oil leaks anywhere it can find a way to escape. The only leakage I've
seen
> so far is around the outside of the oil dipstick tube.
>
>

Re: Clogged PCV tube
 

No, excessive crankcase pressures are not an urban legend. It usually goes
along the lines of a leaking rear main seal, which you fix, then a week
later the front crank seal, which you fix, then a week after that, the valve
cover gasket, which you fix, but by now you realize that the clogged PCV is
the root cause of all of your problems, and you fix that, too. Ask me how I
know.

Jerry


"TJM" <tjm@nospam> wrote in message
news:m7adnZuL7--OBgPdRVn-sA@comcast.com...
> > > The question I have now is - should I buy a bottle of oil dye and see
if
> > > there are any leaks caused by this PCV cloggage?
> >
> > That won't cause an oil leak, just excess oil on your air filter.
> > No reason to use dye.
>
> So the excessive crankcase pressures are just a myth? I've perused some
> websites that seem to indicate long-standing PCV cloggage can cause
massive
> oil leaks anywhere it can find a way to escape. The only leakage I've
seen
> so far is around the outside of the oil dipstick tube.
>
>

Re: Clogged PCV tube
 

No, excessive crankcase pressures are not an urban legend. It usually goes
along the lines of a leaking rear main seal, which you fix, then a week
later the front crank seal, which you fix, then a week after that, the valve
cover gasket, which you fix, but by now you realize that the clogged PCV is
the root cause of all of your problems, and you fix that, too. Ask me how I
know.

Jerry


"TJM" <tjm@nospam> wrote in message
news:m7adnZuL7--OBgPdRVn-sA@comcast.com...
> > > The question I have now is - should I buy a bottle of oil dye and see
if
> > > there are any leaks caused by this PCV cloggage?
> >
> > That won't cause an oil leak, just excess oil on your air filter.
> > No reason to use dye.
>
> So the excessive crankcase pressures are just a myth? I've perused some
> websites that seem to indicate long-standing PCV cloggage can cause
massive
> oil leaks anywhere it can find a way to escape. The only leakage I've
seen
> so far is around the outside of the oil dipstick tube.
>
>