opened up oil pan now what???

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May 12, 2009 | 05:36 PM

#16

fivendime

Senior Member

Joined: Dec 2008

Posts: 990

Likes: 4

From: Washington State

Year: 1996

Model: Cherokee

Engine: 4.0L HO

Its not bad to drop a trans but getting it back in is sometimes a nightmare. If you do the best way I found on the XJ's is to put the torque converter in and then bolt the motor up. Then bolt the flex plate to the converter. I have done it many ways and this seams to be the easiest way for me. I think you have to pull the spark plug so there is no compression on that cylinder to check for the noise.

May 12, 2009 | 05:41 PM

#17

Jsny1010

Member

Joined: Oct 2008

Posts: 171

Likes: 0

Year: 89

Model: Cherokee

Engine: 4.0L

Quote:

Originally Posted by 98 JeepJeep

probally lifters...i wouldnt mess with the rods/mains....you will be wasting your $$ if you put in new bearings. put a new oil pump/rear main seal/oil pan gasket. bolt it back up.

Agrree with that, redo your rear main and pump while your there, just to be safe!!

May 12, 2009 | 10:51 PM

#18

brn2drm

Thread Starter

Junior Member

Joined: Apr 2009

Posts: 32

Likes: 0

Model: Cherokee

Quote:

Originally Posted by 98 JeepJeep

does this noise go away arounf 2k Rpms?

yes it seems to.what you thinkin???

May 12, 2009 | 10:55 PM

#19

brn2drm

Thread Starter

Junior Member

Joined: Apr 2009

Posts: 32

Likes: 0

Model: Cherokee

Quote:

Originally Posted by mike37

did you check for wear with the plastigage

um!! no i didn't sorry.!!

May 12, 2009 | 11:39 PM

#20

sidedrifter

Newbie

Joined: Mar 2009

Posts: 14

Likes: 0

From: So. Oregon

Year: 1998

Model: Cherokee

Engine: 4.0

I had a knock in the 4.0 in my old 89 XJ and it ended up being a bad #6 hole being way out of round. It would go away when you put rpm's on it. We found it when we put in a new motor. The motor had 156 K on it.