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-   -   94XJ Blow-by (https://www.jeepscanada.com/jeep-mailing-list-32/94xj-blow-13136/)

Will Honea 04-17-2004 05:45 PM

Re: 4.0 external oil blow-by WAS: 94XJ Blow-by
 
The local Jeep dealer knew exactly what I was looking for, pulled it
off the shelf and I was on my way for under $25. There's also
something to be said for checking with Jeep in the process - sometimes
they surprise you!

On Sat, 17 Apr 2004 15:15:13 UTC Lee Ayrton <layrton@panix.com> wrote:

>
> The grommets on my `89 4.0 were shot as is the connector to the filter box
> so I went looking for them locally. I hit almost every parts house in
> town before I happened on the friendly guy at the NAPA store. Now, this
> is why mass retailers like AutoZone aren't always the better place to buy
> parts (leaving aside the question of quality for now): AutoZone hires
> pimple-faced kids who are completely lost if it doesn't pop up for them on
> a computer screen. "I don't even know where the paper catalogues are" is
> not an infrequent whine (they're right by your left foot, ya twit). I
> often look up my own parts at the local AZ and tell them what I need.
>
> So the guy at NAPA listens to what I'm describing and says "I know that we
> can get them, but the soft parts are molded onto the hard tubing and
> they're called something utterly wrong in the catalogue."
>
> He checked all the likely index entries in the Balkamp catalogue: Valve
> cover grommets, PCV, CCV, emissions, vapor, nada. He finally found them
> by paging through the catalogue, knowing what it looked like. The parts
> fit a range of years for the 4.0 (something like `87 - `92) and there's
> three of them: "Left Vacuum Assembly", "Right Vacuum Assembly" and the
> small-bore tube from the rear to the manifold, whose name escapes me.
> They _are_ _not_ _indexed_ in the current Balkamp catalogue, but for
> those who will eventually need to replace these parts here's the
> Balkamp part numbers 715-1365 (rear) 715-1366 (left) 715-1367 (right).
> Total cost locally for all three parts was US$41.
>
> Thanks again Mike for the advice. I'll be replacing those parts
> this afternoon.
>
>
> On Mon, 12 Apr 2004, Mike Romain wrote:
>
> > The rear plastic tube is plugged up. A good soak in carb cleaner and a
> > ream with a chunk of insulated wire fixed mine. 12 gauge automotive wire
> > I think it was.
> >
> > The CCV grommet in the rear has a metered hole that can be cleaned out
> > with a paper clip. If it has been blocked for a long time, sludge will
> > have built up and the grommet might need to be taken out to clean under
> > it or even the cover removed to really clean it out.
> >
> > The CCV is calibrated to use the air intake hose from the filter. If
> > the grommets are leaking, too much air can get in and the CCV will not
> > suck hard enough so again oil spits into the air filter.
> >
> > Same for a worn out oil filler cap.
> >
> > But if the back tube is plugged, it just spits oil out everywhere, fix
> > that first and see if the leaks continue, if they do seal more up.
> >
> > Here is a link on it with some part numbers for new:
> >
> > http://www.off-road.com/jeep/cheroke...ltr/blowby.htm
> >
> > Mike
> >
> >
> > Lee Ayrton wrote:
> > >
> > > Ah, thanks, you just opened the can of worms that I was looking at. My
> > > `89 Cherokee 4.0 is blowing a respectable amount of oil into the filter
> > > box, as well as around both valve cover grommets and the filler cap.
> > > There's a small diameter hard tube that exits the rear third of the valve
> > > cover and enters the intake manifold. There's a large-bore hard tube that
> > > exits the front third of the valve cover and enters the rear of the filter
> > > box. Clearly something isn't venting correctly, but where should I look?
> > >
> > > On Mon, 12 Apr 2004, Mike Romain wrote:
> > >
> > > > So I guess no matter what engine you have it does need a couple
> > > > flushes. You should put an additive in, drive it a bit then change the
> > > > oil. Several times.
> > > >
> > > > I am concerned a bit with the PCV thing. If the mechanic doesn't know
> > > > the difference between a PCV and CCV, well... Run fast...
> > > >
> > > > Jeep engines are really touchy about the PCV and CCV systems working
> > > > right or they can blow massive amounts of oil into the air filters.
> > > > Enough I know a few folks that got suckered into new engines only to
> > > > have the same oil blow that only needed a $5.00 fix...
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > Adonis wrote:
> > > > >
> > > > > I took my 94XJ to a local Jeep hobbyist install/repair shop with some
> > > > > blow-by in which I have, he explained that I need to flush my engine, but
> > > > > googling around suggests that it may be my PCV valve (which is broken,
> > > > > physically) but also when the guy stuck his finger into the filler cap there
> > > > > was a very good amount of sludge, he wants to charge 40$ for an oil change
> > > > > to flush out the contaminants this week and to return next week to flush it
> > > > > again for another 40$, as well as he will replace the PCV, should this be a
> > > > > go? or should I go somewhere else?
> > > > >
> > > > > Any suggestions are greatly appreciated.
> > > > >
> > > > > Adonis
> > > >

> >



--
Will Honea <whonea@codenet.net>

Lee Ayrton 04-18-2004 08:22 AM

Re: 4.0 external oil blow-by WAS: 94XJ Blow-by
 

Likely good advice, but I've been raped by my local dealer so many times
on parts costs that they are a very distant last choice. I know that
we've opened the dealer parts pricing can-o-worms before so I won't
go there just now.


On Sat, 17 Apr 2004, Will Honea wrote:

> The local Jeep dealer knew exactly what I was looking for, pulled it
> off the shelf and I was on my way for under $25. There's also
> something to be said for checking with Jeep in the process - sometimes
> they surprise you!
>
> On Sat, 17 Apr 2004 15:15:13 UTC Lee Ayrton <layrton@panix.com> wrote:
>
> >
> > The grommets on my `89 4.0 were shot as is the connector to the filter box
> > so I went looking for them locally. I hit almost every parts house in
> > town before I happened on the friendly guy at the NAPA store. Now, this
> > is why mass retailers like AutoZone aren't always the better place to buy
> > parts (leaving aside the question of quality for now): AutoZone hires
> > pimple-faced kids who are completely lost if it doesn't pop up for them on
> > a computer screen. "I don't even know where the paper catalogues are" is
> > not an infrequent whine (they're right by your left foot, ya twit). I
> > often look up my own parts at the local AZ and tell them what I need.
> >
> > So the guy at NAPA listens to what I'm describing and says "I know that we
> > can get them, but the soft parts are molded onto the hard tubing and
> > they're called something utterly wrong in the catalogue."
> >
> > He checked all the likely index entries in the Balkamp catalogue: Valve
> > cover grommets, PCV, CCV, emissions, vapor, nada. He finally found them
> > by paging through the catalogue, knowing what it looked like. The parts
> > fit a range of years for the 4.0 (something like `87 - `92) and there's
> > three of them: "Left Vacuum Assembly", "Right Vacuum Assembly" and the
> > small-bore tube from the rear to the manifold, whose name escapes me.
> > They _are_ _not_ _indexed_ in the current Balkamp catalogue, but for
> > those who will eventually need to replace these parts here's the
> > Balkamp part numbers 715-1365 (rear) 715-1366 (left) 715-1367 (right).
> > Total cost locally for all three parts was US$41.
> >
> > Thanks again Mike for the advice. I'll be replacing those parts
> > this afternoon.
> >
> >
> > On Mon, 12 Apr 2004, Mike Romain wrote:
> >
> > > The rear plastic tube is plugged up. A good soak in carb cleaner and a
> > > ream with a chunk of insulated wire fixed mine. 12 gauge automotive wire
> > > I think it was.
> > >
> > > The CCV grommet in the rear has a metered hole that can be cleaned out
> > > with a paper clip. If it has been blocked for a long time, sludge will
> > > have built up and the grommet might need to be taken out to clean under
> > > it or even the cover removed to really clean it out.
> > >
> > > The CCV is calibrated to use the air intake hose from the filter. If
> > > the grommets are leaking, too much air can get in and the CCV will not
> > > suck hard enough so again oil spits into the air filter.
> > >
> > > Same for a worn out oil filler cap.
> > >
> > > But if the back tube is plugged, it just spits oil out everywhere, fix
> > > that first and see if the leaks continue, if they do seal more up.
> > >
> > > Here is a link on it with some part numbers for new:
> > >
> > > http://www.off-road.com/jeep/cheroke...ltr/blowby.htm
> > >
> > > Mike
> > >
> > >
> > > Lee Ayrton wrote:
> > > >
> > > > Ah, thanks, you just opened the can of worms that I was looking at. My
> > > > `89 Cherokee 4.0 is blowing a respectable amount of oil into the filter
> > > > box, as well as around both valve cover grommets and the filler cap.
> > > > There's a small diameter hard tube that exits the rear third of the valve
> > > > cover and enters the intake manifold. There's a large-bore hard tube that
> > > > exits the front third of the valve cover and enters the rear of the filter
> > > > box. Clearly something isn't venting correctly, but where should I look?
> > > >
> > > > On Mon, 12 Apr 2004, Mike Romain wrote:
> > > >
> > > > > So I guess no matter what engine you have it does need a couple
> > > > > flushes. You should put an additive in, drive it a bit then change the
> > > > > oil. Several times.
> > > > >
> > > > > I am concerned a bit with the PCV thing. If the mechanic doesn't know
> > > > > the difference between a PCV and CCV, well... Run fast...
> > > > >
> > > > > Jeep engines are really touchy about the PCV and CCV systems working
> > > > > right or they can blow massive amounts of oil into the air filters.
> > > > > Enough I know a few folks that got suckered into new engines only to
> > > > > have the same oil blow that only needed a $5.00 fix...
> > > > >
> > > > > Mike
> > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > > 88 Cherokee 235 BFG AT's
> > > > >
> > > > > Adonis wrote:
> > > > > >
> > > > > > I took my 94XJ to a local Jeep hobbyist install/repair shop with some
> > > > > > blow-by in which I have, he explained that I need to flush my engine, but
> > > > > > googling around suggests that it may be my PCV valve (which is broken,
> > > > > > physically) but also when the guy stuck his finger into the filler cap there
> > > > > > was a very good amount of sludge, he wants to charge 40$ for an oil change
> > > > > > to flush out the contaminants this week and to return next week to flush it
> > > > > > again for another 40$, as well as he will replace the PCV, should this be a
> > > > > > go? or should I go somewhere else?
> > > > > >
> > > > > > Any suggestions are greatly appreciated.
> > > > > >
> > > > > > Adonis
> > > > >
> > >

>
>
> --
> Will Honea <whonea@codenet.net>
>


Lee Ayrton 04-18-2004 08:22 AM

Re: 4.0 external oil blow-by WAS: 94XJ Blow-by
 

Likely good advice, but I've been raped by my local dealer so many times
on parts costs that they are a very distant last choice. I know that
we've opened the dealer parts pricing can-o-worms before so I won't
go there just now.


On Sat, 17 Apr 2004, Will Honea wrote:

> The local Jeep dealer knew exactly what I was looking for, pulled it
> off the shelf and I was on my way for under $25. There's also
> something to be said for checking with Jeep in the process - sometimes
> they surprise you!
>
> On Sat, 17 Apr 2004 15:15:13 UTC Lee Ayrton <layrton@panix.com> wrote:
>
> >
> > The grommets on my `89 4.0 were shot as is the connector to the filter box
> > so I went looking for them locally. I hit almost every parts house in
> > town before I happened on the friendly guy at the NAPA store. Now, this
> > is why mass retailers like AutoZone aren't always the better place to buy
> > parts (leaving aside the question of quality for now): AutoZone hires
> > pimple-faced kids who are completely lost if it doesn't pop up for them on
> > a computer screen. "I don't even know where the paper catalogues are" is
> > not an infrequent whine (they're right by your left foot, ya twit). I
> > often look up my own parts at the local AZ and tell them what I need.
> >
> > So the guy at NAPA listens to what I'm describing and says "I know that we
> > can get them, but the soft parts are molded onto the hard tubing and
> > they're called something utterly wrong in the catalogue."
> >
> > He checked all the likely index entries in the Balkamp catalogue: Valve
> > cover grommets, PCV, CCV, emissions, vapor, nada. He finally found them
> > by paging through the catalogue, knowing what it looked like. The parts
> > fit a range of years for the 4.0 (something like `87 - `92) and there's
> > three of them: "Left Vacuum Assembly", "Right Vacuum Assembly" and the
> > small-bore tube from the rear to the manifold, whose name escapes me.
> > They _are_ _not_ _indexed_ in the current Balkamp catalogue, but for
> > those who will eventually need to replace these parts here's the
> > Balkamp part numbers 715-1365 (rear) 715-1366 (left) 715-1367 (right).
> > Total cost locally for all three parts was US$41.
> >
> > Thanks again Mike for the advice. I'll be replacing those parts
> > this afternoon.
> >
> >
> > On Mon, 12 Apr 2004, Mike Romain wrote:
> >
> > > The rear plastic tube is plugged up. A good soak in carb cleaner and a
> > > ream with a chunk of insulated wire fixed mine. 12 gauge automotive wire
> > > I think it was.
> > >
> > > The CCV grommet in the rear has a metered hole that can be cleaned out
> > > with a paper clip. If it has been blocked for a long time, sludge will
> > > have built up and the grommet might need to be taken out to clean under
> > > it or even the cover removed to really clean it out.
> > >
> > > The CCV is calibrated to use the air intake hose from the filter. If
> > > the grommets are leaking, too much air can get in and the CCV will not
> > > suck hard enough so again oil spits into the air filter.
> > >
> > > Same for a worn out oil filler cap.
> > >
> > > But if the back tube is plugged, it just spits oil out everywhere, fix
> > > that first and see if the leaks continue, if they do seal more up.
> > >
> > > Here is a link on it with some part numbers for new:
> > >
> > > http://www.off-road.com/jeep/cheroke...ltr/blowby.htm
> > >
> > > Mike
> > >
> > >
> > > Lee Ayrton wrote:
> > > >
> > > > Ah, thanks, you just opened the can of worms that I was looking at. My
> > > > `89 Cherokee 4.0 is blowing a respectable amount of oil into the filter
> > > > box, as well as around both valve cover grommets and the filler cap.
> > > > There's a small diameter hard tube that exits the rear third of the valve
> > > > cover and enters the intake manifold. There's a large-bore hard tube that
> > > > exits the front third of the valve cover and enters the rear of the filter
> > > > box. Clearly something isn't venting correctly, but where should I look?
> > > >
> > > > On Mon, 12 Apr 2004, Mike Romain wrote:
> > > >
> > > > > So I guess no matter what engine you have it does need a couple
> > > > > flushes. You should put an additive in, drive it a bit then change the
> > > > > oil. Several times.
> > > > >
> > > > > I am concerned a bit with the PCV thing. If the mechanic doesn't know
> > > > > the difference between a PCV and CCV, well... Run fast...
> > > > >
> > > > > Jeep engines are really touchy about the PCV and CCV systems working
> > > > > right or they can blow massive amounts of oil into the air filters.
> > > > > Enough I know a few folks that got suckered into new engines only to
> > > > > have the same oil blow that only needed a $5.00 fix...
> > > > >
> > > > > Mike
> > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > > 88 Cherokee 235 BFG AT's
> > > > >
> > > > > Adonis wrote:
> > > > > >
> > > > > > I took my 94XJ to a local Jeep hobbyist install/repair shop with some
> > > > > > blow-by in which I have, he explained that I need to flush my engine, but
> > > > > > googling around suggests that it may be my PCV valve (which is broken,
> > > > > > physically) but also when the guy stuck his finger into the filler cap there
> > > > > > was a very good amount of sludge, he wants to charge 40$ for an oil change
> > > > > > to flush out the contaminants this week and to return next week to flush it
> > > > > > again for another 40$, as well as he will replace the PCV, should this be a
> > > > > > go? or should I go somewhere else?
> > > > > >
> > > > > > Any suggestions are greatly appreciated.
> > > > > >
> > > > > > Adonis
> > > > >
> > >

>
>
> --
> Will Honea <whonea@codenet.net>
>


Lee Ayrton 04-18-2004 08:22 AM

Re: 4.0 external oil blow-by WAS: 94XJ Blow-by
 

Likely good advice, but I've been raped by my local dealer so many times
on parts costs that they are a very distant last choice. I know that
we've opened the dealer parts pricing can-o-worms before so I won't
go there just now.


On Sat, 17 Apr 2004, Will Honea wrote:

> The local Jeep dealer knew exactly what I was looking for, pulled it
> off the shelf and I was on my way for under $25. There's also
> something to be said for checking with Jeep in the process - sometimes
> they surprise you!
>
> On Sat, 17 Apr 2004 15:15:13 UTC Lee Ayrton <layrton@panix.com> wrote:
>
> >
> > The grommets on my `89 4.0 were shot as is the connector to the filter box
> > so I went looking for them locally. I hit almost every parts house in
> > town before I happened on the friendly guy at the NAPA store. Now, this
> > is why mass retailers like AutoZone aren't always the better place to buy
> > parts (leaving aside the question of quality for now): AutoZone hires
> > pimple-faced kids who are completely lost if it doesn't pop up for them on
> > a computer screen. "I don't even know where the paper catalogues are" is
> > not an infrequent whine (they're right by your left foot, ya twit). I
> > often look up my own parts at the local AZ and tell them what I need.
> >
> > So the guy at NAPA listens to what I'm describing and says "I know that we
> > can get them, but the soft parts are molded onto the hard tubing and
> > they're called something utterly wrong in the catalogue."
> >
> > He checked all the likely index entries in the Balkamp catalogue: Valve
> > cover grommets, PCV, CCV, emissions, vapor, nada. He finally found them
> > by paging through the catalogue, knowing what it looked like. The parts
> > fit a range of years for the 4.0 (something like `87 - `92) and there's
> > three of them: "Left Vacuum Assembly", "Right Vacuum Assembly" and the
> > small-bore tube from the rear to the manifold, whose name escapes me.
> > They _are_ _not_ _indexed_ in the current Balkamp catalogue, but for
> > those who will eventually need to replace these parts here's the
> > Balkamp part numbers 715-1365 (rear) 715-1366 (left) 715-1367 (right).
> > Total cost locally for all three parts was US$41.
> >
> > Thanks again Mike for the advice. I'll be replacing those parts
> > this afternoon.
> >
> >
> > On Mon, 12 Apr 2004, Mike Romain wrote:
> >
> > > The rear plastic tube is plugged up. A good soak in carb cleaner and a
> > > ream with a chunk of insulated wire fixed mine. 12 gauge automotive wire
> > > I think it was.
> > >
> > > The CCV grommet in the rear has a metered hole that can be cleaned out
> > > with a paper clip. If it has been blocked for a long time, sludge will
> > > have built up and the grommet might need to be taken out to clean under
> > > it or even the cover removed to really clean it out.
> > >
> > > The CCV is calibrated to use the air intake hose from the filter. If
> > > the grommets are leaking, too much air can get in and the CCV will not
> > > suck hard enough so again oil spits into the air filter.
> > >
> > > Same for a worn out oil filler cap.
> > >
> > > But if the back tube is plugged, it just spits oil out everywhere, fix
> > > that first and see if the leaks continue, if they do seal more up.
> > >
> > > Here is a link on it with some part numbers for new:
> > >
> > > http://www.off-road.com/jeep/cheroke...ltr/blowby.htm
> > >
> > > Mike
> > >
> > >
> > > Lee Ayrton wrote:
> > > >
> > > > Ah, thanks, you just opened the can of worms that I was looking at. My
> > > > `89 Cherokee 4.0 is blowing a respectable amount of oil into the filter
> > > > box, as well as around both valve cover grommets and the filler cap.
> > > > There's a small diameter hard tube that exits the rear third of the valve
> > > > cover and enters the intake manifold. There's a large-bore hard tube that
> > > > exits the front third of the valve cover and enters the rear of the filter
> > > > box. Clearly something isn't venting correctly, but where should I look?
> > > >
> > > > On Mon, 12 Apr 2004, Mike Romain wrote:
> > > >
> > > > > So I guess no matter what engine you have it does need a couple
> > > > > flushes. You should put an additive in, drive it a bit then change the
> > > > > oil. Several times.
> > > > >
> > > > > I am concerned a bit with the PCV thing. If the mechanic doesn't know
> > > > > the difference between a PCV and CCV, well... Run fast...
> > > > >
> > > > > Jeep engines are really touchy about the PCV and CCV systems working
> > > > > right or they can blow massive amounts of oil into the air filters.
> > > > > Enough I know a few folks that got suckered into new engines only to
> > > > > have the same oil blow that only needed a $5.00 fix...
> > > > >
> > > > > Mike
> > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > > 88 Cherokee 235 BFG AT's
> > > > >
> > > > > Adonis wrote:
> > > > > >
> > > > > > I took my 94XJ to a local Jeep hobbyist install/repair shop with some
> > > > > > blow-by in which I have, he explained that I need to flush my engine, but
> > > > > > googling around suggests that it may be my PCV valve (which is broken,
> > > > > > physically) but also when the guy stuck his finger into the filler cap there
> > > > > > was a very good amount of sludge, he wants to charge 40$ for an oil change
> > > > > > to flush out the contaminants this week and to return next week to flush it
> > > > > > again for another 40$, as well as he will replace the PCV, should this be a
> > > > > > go? or should I go somewhere else?
> > > > > >
> > > > > > Any suggestions are greatly appreciated.
> > > > > >
> > > > > > Adonis
> > > > >
> > >

>
>
> --
> Will Honea <whonea@codenet.net>
>


Lee Ayrton 04-18-2004 08:22 AM

Re: 4.0 external oil blow-by WAS: 94XJ Blow-by
 

Likely good advice, but I've been raped by my local dealer so many times
on parts costs that they are a very distant last choice. I know that
we've opened the dealer parts pricing can-o-worms before so I won't
go there just now.


On Sat, 17 Apr 2004, Will Honea wrote:

> The local Jeep dealer knew exactly what I was looking for, pulled it
> off the shelf and I was on my way for under $25. There's also
> something to be said for checking with Jeep in the process - sometimes
> they surprise you!
>
> On Sat, 17 Apr 2004 15:15:13 UTC Lee Ayrton <layrton@panix.com> wrote:
>
> >
> > The grommets on my `89 4.0 were shot as is the connector to the filter box
> > so I went looking for them locally. I hit almost every parts house in
> > town before I happened on the friendly guy at the NAPA store. Now, this
> > is why mass retailers like AutoZone aren't always the better place to buy
> > parts (leaving aside the question of quality for now): AutoZone hires
> > pimple-faced kids who are completely lost if it doesn't pop up for them on
> > a computer screen. "I don't even know where the paper catalogues are" is
> > not an infrequent whine (they're right by your left foot, ya twit). I
> > often look up my own parts at the local AZ and tell them what I need.
> >
> > So the guy at NAPA listens to what I'm describing and says "I know that we
> > can get them, but the soft parts are molded onto the hard tubing and
> > they're called something utterly wrong in the catalogue."
> >
> > He checked all the likely index entries in the Balkamp catalogue: Valve
> > cover grommets, PCV, CCV, emissions, vapor, nada. He finally found them
> > by paging through the catalogue, knowing what it looked like. The parts
> > fit a range of years for the 4.0 (something like `87 - `92) and there's
> > three of them: "Left Vacuum Assembly", "Right Vacuum Assembly" and the
> > small-bore tube from the rear to the manifold, whose name escapes me.
> > They _are_ _not_ _indexed_ in the current Balkamp catalogue, but for
> > those who will eventually need to replace these parts here's the
> > Balkamp part numbers 715-1365 (rear) 715-1366 (left) 715-1367 (right).
> > Total cost locally for all three parts was US$41.
> >
> > Thanks again Mike for the advice. I'll be replacing those parts
> > this afternoon.
> >
> >
> > On Mon, 12 Apr 2004, Mike Romain wrote:
> >
> > > The rear plastic tube is plugged up. A good soak in carb cleaner and a
> > > ream with a chunk of insulated wire fixed mine. 12 gauge automotive wire
> > > I think it was.
> > >
> > > The CCV grommet in the rear has a metered hole that can be cleaned out
> > > with a paper clip. If it has been blocked for a long time, sludge will
> > > have built up and the grommet might need to be taken out to clean under
> > > it or even the cover removed to really clean it out.
> > >
> > > The CCV is calibrated to use the air intake hose from the filter. If
> > > the grommets are leaking, too much air can get in and the CCV will not
> > > suck hard enough so again oil spits into the air filter.
> > >
> > > Same for a worn out oil filler cap.
> > >
> > > But if the back tube is plugged, it just spits oil out everywhere, fix
> > > that first and see if the leaks continue, if they do seal more up.
> > >
> > > Here is a link on it with some part numbers for new:
> > >
> > > http://www.off-road.com/jeep/cheroke...ltr/blowby.htm
> > >
> > > Mike
> > >
> > >
> > > Lee Ayrton wrote:
> > > >
> > > > Ah, thanks, you just opened the can of worms that I was looking at. My
> > > > `89 Cherokee 4.0 is blowing a respectable amount of oil into the filter
> > > > box, as well as around both valve cover grommets and the filler cap.
> > > > There's a small diameter hard tube that exits the rear third of the valve
> > > > cover and enters the intake manifold. There's a large-bore hard tube that
> > > > exits the front third of the valve cover and enters the rear of the filter
> > > > box. Clearly something isn't venting correctly, but where should I look?
> > > >
> > > > On Mon, 12 Apr 2004, Mike Romain wrote:
> > > >
> > > > > So I guess no matter what engine you have it does need a couple
> > > > > flushes. You should put an additive in, drive it a bit then change the
> > > > > oil. Several times.
> > > > >
> > > > > I am concerned a bit with the PCV thing. If the mechanic doesn't know
> > > > > the difference between a PCV and CCV, well... Run fast...
> > > > >
> > > > > Jeep engines are really touchy about the PCV and CCV systems working
> > > > > right or they can blow massive amounts of oil into the air filters.
> > > > > Enough I know a few folks that got suckered into new engines only to
> > > > > have the same oil blow that only needed a $5.00 fix...
> > > > >
> > > > > Mike
> > > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > > 88 Cherokee 235 BFG AT's
> > > > >
> > > > > Adonis wrote:
> > > > > >
> > > > > > I took my 94XJ to a local Jeep hobbyist install/repair shop with some
> > > > > > blow-by in which I have, he explained that I need to flush my engine, but
> > > > > > googling around suggests that it may be my PCV valve (which is broken,
> > > > > > physically) but also when the guy stuck his finger into the filler cap there
> > > > > > was a very good amount of sludge, he wants to charge 40$ for an oil change
> > > > > > to flush out the contaminants this week and to return next week to flush it
> > > > > > again for another 40$, as well as he will replace the PCV, should this be a
> > > > > > go? or should I go somewhere else?
> > > > > >
> > > > > > Any suggestions are greatly appreciated.
> > > > > >
> > > > > > Adonis
> > > > >
> > >

>
>
> --
> Will Honea <whonea@codenet.net>
>



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