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Unread 06-23-2013, 06:35 PM   #1
87xjmav
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still an oil leak HELP!!!!!!

ok im new to this site but here it goes. I have an 1987 jeep Cherokee that is still leaking oil pretty bad. #1 replaced oil pan gasket #2 replaced rear main seal #3 replaced valve cover gasket. im completely stumped guys is there anything else I can do before I run it off a cliff

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Unread 06-23-2013, 07:29 PM   #2
AvsXJ99
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Can you tell at all where the leak is coming from?
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Unread 06-23-2013, 07:34 PM   #3
blackolive99
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Degrease it and then run it. Fresh leaks will show up fast.
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Unread 06-23-2013, 07:48 PM   #4
87xjmav
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its comin down on top of the starter then running into the bell housing onto the exhaust. I kill mosquitos going down the road lol
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Unread 06-23-2013, 08:05 PM   #5
rjbruzan
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Oil filter adapter?
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Unread 06-23-2013, 09:21 PM   #6
blackolive99
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X2 on the adapter. I fixed mine after I did my motor mounts. It poured!
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Unread 06-23-2013, 11:17 PM   #7
cruiser54
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Here's all you need to know:




I'd be looking up ABOVE first, and VERIFYING the source of the oil leak YOURSELF.

Everybody, who doesn't own or have to pay for or perform your vehicle repairs, loves to poke their noggin UNDER the Jeep and come out bearing the false bad news that your RMS is leaking.

Many mechanics, friends, people on Jeep forums who can’t see your Jeep from where they’re at, and good old Uncle Bob seem to enjoy telling you it’s the rear main seal. Has a catastrophic ring to it, doesn’t it?

A simple leak at the back of the valve cover or other source could produce the same symptoms. You don’t need to be a mechanic to figure this out. If you have good eyesight and a dim flashlight, you’re good to go on your own. Don't jump on the RMS/oil pan gasket bandwagon right off the bat.

Almost any oil leak on your 4.0 is gonna drip from the RMS area for two simple reasons.

First off, the engine sits nose-up and any oil will run back to the RMS area. Secondly, the RMS area is also the lowest point on the engine. Simple physics and the old plumber's adage apply here. "***** flows downhill".

Valve cover gasket, oil pressure sending unit, oil filter adapter seals and distributor gasket, in that order, have to be eliminated as possibilities first.

Revised 02-26-2013
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Quote:
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If you own a Renix Jeep, you'll want to check this out. >

An index to over 25 write-ups can be found in Post #1.

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http://www.cherokeeforum.com/g/album/1725214
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Unread 06-24-2013, 08:58 AM   #8
Pats94
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Degrease with cleaner. Take one bottle of baby powder douse the side of the motor. Look for brown powder after running. There is your leak.... easy plus it makes it smell baby fresh...
Why does everybody make finding a leak so tough?
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Unread 06-24-2013, 02:43 PM   #9
cruiser54
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Quote:
Originally Posted by Pats94 View Post
Degrease with cleaner. Take one bottle of baby powder douse the side of the motor. Look for brown powder after running. There is your leak.... easy plus it makes it smell baby fresh...
Why does everybody make finding a leak so tough?
You got me. That's why I posted the write-up above. So many leaks are misdiagnosed by people with half-assed answers, it makes you wanna puke.
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Quote:
Originally Posted by chris87xj View Post
If you own a Renix Jeep, you'll want to check this out. >

An index to over 25 write-ups can be found in Post #1.

Cruiser's Mostly Renix Tips
My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
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Unread 06-24-2013, 05:01 PM   #10
Pats94
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Quote:
Originally Posted by cruiser54 View Post

You got me. That's why I posted the write-up above. So many leaks are misdiagnosed by people with half-assed answers, it makes you wanna puke.
I know what you mean...
I'm still trying to wrap my head around last weeks "cheap" fix by welding ball joints in....
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Unread 06-25-2013, 07:03 AM   #11
cruiser54
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Quote:
Originally Posted by Pats94 View Post
I know what you mean...
I'm still trying to wrap my head around last weeks "cheap" fix by welding ball joints in....
Thought you might like this:



Chipmaker says:

“Way more problems get solved by using your five senses under your hood rather than your ten fingers on a keyboard”
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Quote:
Originally Posted by chris87xj View Post
If you own a Renix Jeep, you'll want to check this out. >

An index to over 25 write-ups can be found in Post #1.

Cruiser's Mostly Renix Tips
My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
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Unread 06-25-2013, 08:14 AM   #12
Pats94
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Quote:
Originally Posted by cruiser54 View Post

Thought you might like this:

Chipmaker says:

“Way more problems get solved by using your five senses under your hood rather than your ten fingers on a keyboard”
Lol. Novel concept! A lot like when engineers would come out to the track. Huh so that's why that design sucks.... you could talk until blue but a live "catastrophic failure of containment" was priceless!
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Unread 06-25-2013, 11:15 AM   #13
xj-jake
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Mine ended up being the distributer gastket after i replaced about everything else under the hood
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Unread 06-25-2013, 03:38 PM   #14
cruiser54
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Quote:
Originally Posted by xj-jake View Post
Mine ended up being the distributer gastket after i replaced about everything else under the hood
Yep. And a systematic method of diagnosis would have been easier and cheaper. all is not lost though as the other gaskets/seals are now new.
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Quote:
Originally Posted by chris87xj View Post
If you own a Renix Jeep, you'll want to check this out. >

An index to over 25 write-ups can be found in Post #1.

Cruiser's Mostly Renix Tips
My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
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