help
 

i need help i have a 1990 jeep comanche pioneer oil keeps coming out of the
oil cap whene it's on it do's it whene i rev it up the engine has been rebilt
it has a 2.5 in it...

--
Fred elliott

Re: help
 

Your pcv valve/crankcase ventilation system is not working, or the rebuild
was no good and the rings are leaking and causing a too much blow by.

"fred25401" <u26664@uwe> wrote in message news:66522fdbe084e@uwe...
> i need help i have a 1990 jeep comanche pioneer oil keeps coming out of
the
> oil cap whene it's on it do's it whene i rev it up the engine has been
rebilt
> it has a 2.5 in it...
>
> --
> Fred elliott
>

Re: help
 

Your pcv valve/crankcase ventilation system is not working, or the rebuild
was no good and the rings are leaking and causing a too much blow by.

"fred25401" <u26664@uwe> wrote in message news:66522fdbe084e@uwe...
> i need help i have a 1990 jeep comanche pioneer oil keeps coming out of
the
> oil cap whene it's on it do's it whene i rev it up the engine has been
rebilt
> it has a 2.5 in it...
>
> --
> Fred elliott
>

Re: help
 

Your pcv valve/crankcase ventilation system is not working, or the rebuild
was no good and the rings are leaking and causing a too much blow by.

"fred25401" <u26664@uwe> wrote in message news:66522fdbe084e@uwe...
> i need help i have a 1990 jeep comanche pioneer oil keeps coming out of
the
> oil cap whene it's on it do's it whene i rev it up the engine has been
rebilt
> it has a 2.5 in it...
>
> --
> Fred elliott
>

Re: help
 

That can be an issue with a plugged up CCV or PCV system that Jeep
engines are notorious for. I know several people that got sucked into
new engines because the air filter was filling up with oil due to this.

I am not 100% up on the 4 banger's system, but basically there is an
intake from the air filter into the valve cover and a thin plastic
suction line from the valve cover to the intake manifold. The suction
line or the grommet it plugs into in the valve cover just gets plugged
if it's a CCV system and it will blow oil.

I use carb cleaner and a wire to ream out the plastic CCV tubes. The
grommet's metered hole can be cleaned with a paper clip.

If it's a PCV system, (unlikely) the valve should rattle freely.

Here is an article specific to the 4.0 engine, but I believe your system
is the same:
http://jeep.off-road.com/jeep/articl....jsp?id=257985

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

fred25401 wrote:
>
> i need help i have a 1990 jeep comanche pioneer oil keeps coming out of the
> oil cap whene it's on it do's it whene i rev it up the engine has been rebilt
> it has a 2.5 in it...
>
> --
> Fred elliott

Re: help
 

That can be an issue with a plugged up CCV or PCV system that Jeep
engines are notorious for. I know several people that got sucked into
new engines because the air filter was filling up with oil due to this.

I am not 100% up on the 4 banger's system, but basically there is an
intake from the air filter into the valve cover and a thin plastic
suction line from the valve cover to the intake manifold. The suction
line or the grommet it plugs into in the valve cover just gets plugged
if it's a CCV system and it will blow oil.

I use carb cleaner and a wire to ream out the plastic CCV tubes. The
grommet's metered hole can be cleaned with a paper clip.

If it's a PCV system, (unlikely) the valve should rattle freely.

Here is an article specific to the 4.0 engine, but I believe your system
is the same:
http://jeep.off-road.com/jeep/articl....jsp?id=257985

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

fred25401 wrote:
>
> i need help i have a 1990 jeep comanche pioneer oil keeps coming out of the
> oil cap whene it's on it do's it whene i rev it up the engine has been rebilt
> it has a 2.5 in it...
>
> --
> Fred elliott

Re: help
 

That can be an issue with a plugged up CCV or PCV system that Jeep
engines are notorious for. I know several people that got sucked into
new engines because the air filter was filling up with oil due to this.

I am not 100% up on the 4 banger's system, but basically there is an
intake from the air filter into the valve cover and a thin plastic
suction line from the valve cover to the intake manifold. The suction
line or the grommet it plugs into in the valve cover just gets plugged
if it's a CCV system and it will blow oil.

I use carb cleaner and a wire to ream out the plastic CCV tubes. The
grommet's metered hole can be cleaned with a paper clip.

If it's a PCV system, (unlikely) the valve should rattle freely.

Here is an article specific to the 4.0 engine, but I believe your system
is the same:
http://jeep.off-road.com/jeep/articl....jsp?id=257985

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

fred25401 wrote:
>
> i need help i have a 1990 jeep comanche pioneer oil keeps coming out of the
> oil cap whene it's on it do's it whene i rev it up the engine has been rebilt
> it has a 2.5 in it...
>
> --
> Fred elliott

Re: help
 

hdd wrote:
>Your pcv valve/crankcase ventilation system is not working, or the rebuild
>was no good and the rings are leaking and causing a too much blow by.
>
>> i need help i have a 1990 jeep comanche pioneer oil keeps coming out of the
>> oil cap whene it's on it do's it whene i rev it up the engine has been rebilt
>> it has a 2.5 in it...

ok thank you

--
Fred elliott

Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx/jeep-cars/200609/1

Re: help
 

hdd wrote:
>Your pcv valve/crankcase ventilation system is not working, or the rebuild
>was no good and the rings are leaking and causing a too much blow by.
>
>> i need help i have a 1990 jeep comanche pioneer oil keeps coming out of the
>> oil cap whene it's on it do's it whene i rev it up the engine has been rebilt
>> it has a 2.5 in it...

ok thank you

--
Fred elliott

Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx/jeep-cars/200609/1

Re: help
 

hdd wrote:
>Your pcv valve/crankcase ventilation system is not working, or the rebuild
>was no good and the rings are leaking and causing a too much blow by.
>
>> i need help i have a 1990 jeep comanche pioneer oil keeps coming out of the
>> oil cap whene it's on it do's it whene i rev it up the engine has been rebilt
>> it has a 2.5 in it...

ok thank you

--
Fred elliott

Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx/jeep-cars/200609/1