Jeep Enthusiast Forums banner

'84 CJ7 Oil Leak Bell Housing

152 views 11 replies 5 participants last post by  devildog80  
#1 ·
Replaced MAHLE Engine Valve Cover Gasket. Oil leak at Bell Housing. Thinking the Rear Main Seal is next. Any other suggestions?

Image
 
#3 ·
What is a "MAHLE"???
Brand name.

You need to pressure wash the entire engine and under carriage.
Drive a bit and inspect for leakage. This will help you pinpoint where the leak is. Look for oil running down the side of the block and along the top of the pan.
 
#4 ·
I did pressure wash with some Dawn added. I cleared up this area and all of the “spray back” to the rear which included top of skid plate to rear shocks and in between. This pic was taken 15 miles later. It’s the “epicenter.”
 
#7 ·
If there isn't any oil running down the back of the block, seeping down the lip of the pan, or dripping from the front timing chain cover, and you're sure it isn't transmission fluid, then the RMS seems to be the logical culprit.
 
#8 ·
DO YOU HAVE A FACTORY SERVICE MANUAL

Figgered I jump in there too.

Too much abbreviating of everything, the subject matter

gets all flustered up trying to decipher that crap

-----JEEPFELLER
 
#9 ·
What does the front of the flat plate (mid plate) look like? Is it dry? RMS leak will manifest there first.

If oil is ONLY coming out from where the mid plate mates with the bell house (I have a small notch there on my mid plate, weep hole) then it’s likely the transmission front or output shaft seal.
 
#12 ·
Pull the inspection cover to get a better look.