oem valve cover elbow
CF Veteran
Joined: Dec 2010
Posts: 2,366
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From: Spanish Fork, Utah
Year: 1989
Model: Cherokee
Engine: Renix 4.0L
Originally Posted by 89Laredo
I'm on my phone, I'll respond to this later.
but that was just my experience with it. Figured id try to find a bigger replacement.
On 4.0L, fixed orifice fitting is located at rear of valve cover and air inlet fitting is located at front of valve cover. See Fig. 16 . 3. On all models, remove fixed orifice fitting from valve cover and leave tube attached. Start engine and let idle. A hissing noise should be heard from fixed orifice fitting. Also, a strong vacuum should be felt with a finger placed at fitting inlet. If vacuum is not present, remove fitting. If vacuum is now present at tube, replace fitting. Do not attempt to clean fitting. If vacuum is not present at tube, go to next step. 4. Check tube for kinks or obstruction. Clean tube fitting at intake manifold, if necessary. A 1/4" drill may be used (by hand) to dislodge any solid particles. Reinstall fixed orifice fitting and tube. Disconnect air inlet fitting and hose from front of valve cover. 5. Hold a piece of stiff paper loosely over opening in valve cover. Allow engine to idle for one minute. Paper should be drawn against rubber grommet in valve cover by vacuum in crankcase. If vacuum is not present, check tubes for restrictions or obstructions.
Your problem is not with the grommet you used, but the fact that you have excessive blowby or a plugged up rear orifice.
I personally have used the part I linked to in two renix jeeps with no problems.
look up "oil in air filter" and youll find lots of stuff.
CF Veteran
Joined: Dec 2010
Posts: 2,366
Likes: 0
From: Spanish Fork, Utah
Year: 1989
Model: Cherokee
Engine: Renix 4.0L
Originally Posted by 89Laredo
The front is the "fresh air" inlet.
Your problem is not with the grommet you used, but the fact that you have excessive blowby or a plugged up rear orifice.
I personally have used the part I linked to in two renix jeeps with no problems.
look up "oil in air filter" and youll find lots of stuff.
Your problem is not with the grommet you used, but the fact that you have excessive blowby or a plugged up rear orifice.
I personally have used the part I linked to in two renix jeeps with no problems.
look up "oil in air filter" and youll find lots of stuff.
CF Veteran
Joined: Dec 2010
Posts: 2,366
Likes: 0
From: Spanish Fork, Utah
Year: 1989
Model: Cherokee
Engine: Renix 4.0L
Originally Posted by 89Laredo
You have me confused..
The part I am talking about is this:
It is the front "fresh air" inlet.
Which, once again, I have used in two jeeps with no problems.
The part I am talking about is this:
It is the front "fresh air" inlet.
Which, once again, I have used in two jeeps with no problems.
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