One Last Oil Leak

[97 AZ LC]

What's going on here? I've been working for months to get rid of all the fluid leaks and I think I'm down to just this one oil leak. It's a seam between the engine and transmission with what appears to be a weep hole. It's right below the rubber inspection cover that you can see in the picture. It doesn't leak much but I was going for no leaks. Thanks.

 

[bhsdriller]

rear main or upper oil pan

 

[97 AZ LC]

rear main or upper oil pan

Does it matter which one it is, or are they both too big a job to worry about? I mean as long as it remains just seepage.

 

[bhsdriller]

idk super common, as long as it doesn't leave a mark on the ground. Or just put some cardboard under it

Mine's probably been the same for 5 years and it's not enough to worry about. Decent sized job for both

 

[Kernal]

As above, more likely than not it's from the rear arch area of the upper oil pan, which is directly below the rear crank seal; so a leak in either comes out at the same place.

Oil pan arch seal

Oil pan arch seal project I tackled re-sealing the famous arch seal this weekend. This project is a little involved but fairly straight forward. While I had the engine raised, I took the opportunity to replace the motor mounts. I'm an ameteur so I'm sure there're more efficient ways to do...

forum.ih8mud.com

 

[97 AZ LC]

Well I read that whole thread and, as much as I hate oil leaks, I think I'll pass. If it starts hitting the ground maybe I'll devise a diaper for it. Thanks.

 

[manofthewoods]

rear main or upper oil pan

Yep, assuming it's not red.
I'd bet rear main

 

[Kernal]

First photo shows the rear arch of the upper oil pan:

Next photo shows the upper pan when mated to the block, the arch is directly below the rear crank seal.

 

[Yota4x4orWife]

My ‘96 has the same leak but a drop or two does hit the ground after a week of sitting. I’m not ready to pull the transmission over a small leak. I do understand chasing the “no leak truck” and the sweet joy of success. I hope you get it. No hijack intended- anyone tried a (dare I say) oil stop leak product?