high rpm blow by?

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May 13, 2015 | 04:33 PM

#16

cruiser54

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Joined: Aug 2011

Posts: 43,971

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From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by Chad'sCheep

I haven't removed the fitting and looked at it, but the nipple itself is clear. At idle I pull off the elbow and the rpms go up.

That should be good.

May 13, 2015 | 07:24 PM

#17

Chad'sCheep

Thread Starter

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Joined: Feb 2012

Posts: 38

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From: Washington

Year: 1990

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by cruiser54

That should be good.

Ok, thanks. Checked my jar again today, not even a film, I even pushed the engine a little harder than normal on the freeway. Tempted to hook it back up to the air intake tube...

May 13, 2015 | 11:38 PM

#18

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

Likes: 1,578

From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Do it!!!

May 15, 2015 | 12:41 PM

#19

Chad'sCheep

Thread Starter

Junior Member

Joined: Feb 2012

Posts: 38

Likes: 0

From: Washington

Year: 1990

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by cruiser54

Do it!!!

Left the jar on the following day, aggressive commute, had a tiny bit in the jar. Normally there would have been a teaspoons worth, so, win! No more jar

May 15, 2015 | 07:17 PM

#20

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

Likes: 1,578

From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by Chad'sCheep

Left the jar on the following day, aggressive commute, had a tiny bit in the jar. Normally there would have been a teaspoons worth, so, win! No more jar

Woohoo!!

May 17, 2015 | 09:28 AM

#21

freegdr

CF Veteran

Joined: Mar 2010

Posts: 47,923

Likes: 38

From: Broward County Fl.

Year: 1989 xj sport 2dr

Model: Cherokee

Engine: 12 hole bosch Injectors

Quote:

Originally Posted by Chad'sCheep

Rear is connected and clean, cut the bends out of the tube and reconnected with short sections of vacuum hose.
Front was connected to the intake tube till it soaked my cone filter with oil. Now it goes into a vented pimento jar

No crankcase pressure gets drawn out of motor during acceleration or under loads . If you'r dead set on having the jar should add a second hose and hook to original location to get suction back.

May 18, 2015 | 11:55 PM

#22

Chad'sCheep

Thread Starter

Junior Member

Joined: Feb 2012

Posts: 38

Likes: 0

From: Washington

Year: 1990

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by freegdr

No crankcase pressure gets drawn out of motor during acceleration or under loads . If you'r dead set on having the jar should add a second hose and hook to original location to get suction back.

Gotcha, it is now as Jeep intended it, but the jar still had the ability to vent like the "good old days". I do like the second hose idea... in case it starts seeping again