"Doug" <pigdos@nospam.com> wrote in message news:IBZte.2081$Bx6.1034@newssvr13.news.prodigy.co m...
> I don't have a clogged orifice in the rear valve-cover CCV plumbing because
> it's not really connected at all. That's the problem the grommet in the
> valve-cover doesn't match up with the CCV elbow fitting. The grommet in the
> valve cover is merely a round hole whereas the CCV elbow fitting is designed
> to be rotated and locked in place (kinda of like the oil filler cap) rather
> than just plugged in.

OK... all my XJs (93, 98, 00) had round holes...

> The CCV plumbing is all new because I was having oil blowby into the air
> filter. The problem is the rear valve cover CCV plumbing never fitted so
> there's plenty of room for a vacumn leak and I'm pretty sure nothing is
> being ported from the valve cover to the intake manifold because the
> connection is so loose.

I see... the round hole is an improvement! The tangs made
it leak more... any slight leakage and your crankcase is not
evacuated.

> Because of all the above I'm thinking Jeep/Chrysler/Damniler must have
> changed either the rear valve cover grommet design or the valve cover design
> since '91'.

Yes, I can certify that.

> I think I'll look into Bill's idea and see if I can find and elbow that will
> mate to the existing grommet and CCV plumbing.

Exactly...
__
Steve
..

 

The parts guy at Jeep tracked down the right CCV assembly: 10 bones for 2$
worth of plastic. Apparently the Cherokees have featured at least two
different valve covers.

--
there is no .sig
"Stephen Cowell" <scowell@sbcglobal.net> wrote in message
news:DD5ue.582$5w3.22@newssvr11.news.prodigy.com.. .

"Doug" <pigdos@nospam.com> wrote in message
news:IBZte.2081$Bx6.1034@newssvr13.news.prodigy.co m...
> I don't have a clogged orifice in the rear valve-cover CCV plumbing
> because
> it's not really connected at all. That's the problem the grommet in the
> valve-cover doesn't match up with the CCV elbow fitting. The grommet in
> the
> valve cover is merely a round hole whereas the CCV elbow fitting is
> designed
> to be rotated and locked in place (kinda of like the oil filler cap)
> rather
> than just plugged in.

OK... all my XJs (93, 98, 00) had round holes...

> The CCV plumbing is all new because I was having oil blowby into the air
> filter. The problem is the rear valve cover CCV plumbing never fitted so
> there's plenty of room for a vacumn leak and I'm pretty sure nothing is
> being ported from the valve cover to the intake manifold because the
> connection is so loose.

I see... the round hole is an improvement! The tangs made
it leak more... any slight leakage and your crankcase is not
evacuated.

> Because of all the above I'm thinking Jeep/Chrysler/Damniler must have
> changed either the rear valve cover grommet design or the valve cover
> design
> since '91'.

Yes, I can certify that.

> I think I'll look into Bill's idea and see if I can find and elbow that
> will
> mate to the existing grommet and CCV plumbing.

Exactly...
__
Steve
..

 

The parts guy at Jeep tracked down the right CCV assembly: 10 bones for 2$
worth of plastic. Apparently the Cherokees have featured at least two
different valve covers.

--
there is no .sig
"Stephen Cowell" <scowell@sbcglobal.net> wrote in message
news:DD5ue.582$5w3.22@newssvr11.news.prodigy.com.. .

"Doug" <pigdos@nospam.com> wrote in message
news:IBZte.2081$Bx6.1034@newssvr13.news.prodigy.co m...
> I don't have a clogged orifice in the rear valve-cover CCV plumbing
> because
> it's not really connected at all. That's the problem the grommet in the
> valve-cover doesn't match up with the CCV elbow fitting. The grommet in
> the
> valve cover is merely a round hole whereas the CCV elbow fitting is
> designed
> to be rotated and locked in place (kinda of like the oil filler cap)
> rather
> than just plugged in.

OK... all my XJs (93, 98, 00) had round holes...

> The CCV plumbing is all new because I was having oil blowby into the air
> filter. The problem is the rear valve cover CCV plumbing never fitted so
> there's plenty of room for a vacumn leak and I'm pretty sure nothing is
> being ported from the valve cover to the intake manifold because the
> connection is so loose.

I see... the round hole is an improvement! The tangs made
it leak more... any slight leakage and your crankcase is not
evacuated.

> Because of all the above I'm thinking Jeep/Chrysler/Damniler must have
> changed either the rear valve cover grommet design or the valve cover
> design
> since '91'.

Yes, I can certify that.

> I think I'll look into Bill's idea and see if I can find and elbow that
> will
> mate to the existing grommet and CCV plumbing.

Exactly...
__
Steve
..

 

The parts guy at Jeep tracked down the right CCV assembly: 10 bones for 2$
worth of plastic. Apparently the Cherokees have featured at least two
different valve covers.

--
there is no .sig
"Stephen Cowell" <scowell@sbcglobal.net> wrote in message
news:DD5ue.582$5w3.22@newssvr11.news.prodigy.com.. .

"Doug" <pigdos@nospam.com> wrote in message
news:IBZte.2081$Bx6.1034@newssvr13.news.prodigy.co m...
> I don't have a clogged orifice in the rear valve-cover CCV plumbing
> because
> it's not really connected at all. That's the problem the grommet in the
> valve-cover doesn't match up with the CCV elbow fitting. The grommet in
> the
> valve cover is merely a round hole whereas the CCV elbow fitting is
> designed
> to be rotated and locked in place (kinda of like the oil filler cap)
> rather
> than just plugged in.

OK... all my XJs (93, 98, 00) had round holes...

> The CCV plumbing is all new because I was having oil blowby into the air
> filter. The problem is the rear valve cover CCV plumbing never fitted so
> there's plenty of room for a vacumn leak and I'm pretty sure nothing is
> being ported from the valve cover to the intake manifold because the
> connection is so loose.

I see... the round hole is an improvement! The tangs made
it leak more... any slight leakage and your crankcase is not
evacuated.

> Because of all the above I'm thinking Jeep/Chrysler/Damniler must have
> changed either the rear valve cover grommet design or the valve cover
> design
> since '91'.

Yes, I can certify that.

> I think I'll look into Bill's idea and see if I can find and elbow that
> will
> mate to the existing grommet and CCV plumbing.

Exactly...
__
Steve
..

 

The parts guy at Jeep tracked down the right CCV assembly: 10 bones for 2$
worth of plastic. Apparently the Cherokees have featured at least two
different valve covers.

--
there is no .sig
"Stephen Cowell" <scowell@sbcglobal.net> wrote in message
news:DD5ue.582$5w3.22@newssvr11.news.prodigy.com.. .

"Doug" <pigdos@nospam.com> wrote in message
news:IBZte.2081$Bx6.1034@newssvr13.news.prodigy.co m...
> I don't have a clogged orifice in the rear valve-cover CCV plumbing
> because
> it's not really connected at all. That's the problem the grommet in the
> valve-cover doesn't match up with the CCV elbow fitting. The grommet in
> the
> valve cover is merely a round hole whereas the CCV elbow fitting is
> designed
> to be rotated and locked in place (kinda of like the oil filler cap)
> rather
> than just plugged in.

OK... all my XJs (93, 98, 00) had round holes...

> The CCV plumbing is all new because I was having oil blowby into the air
> filter. The problem is the rear valve cover CCV plumbing never fitted so
> there's plenty of room for a vacumn leak and I'm pretty sure nothing is
> being ported from the valve cover to the intake manifold because the
> connection is so loose.

I see... the round hole is an improvement! The tangs made
it leak more... any slight leakage and your crankcase is not
evacuated.

> Because of all the above I'm thinking Jeep/Chrysler/Damniler must have
> changed either the rear valve cover grommet design or the valve cover
> design
> since '91'.

Yes, I can certify that.

> I think I'll look into Bill's idea and see if I can find and elbow that
> will
> mate to the existing grommet and CCV plumbing.

Exactly...
__
Steve
..