Oil Filter adapter leak

[Tex06]

Fixed my oil filter adapter leak. Hoping this was it and not the Rear Main Seal (replaced that about 6 years ago.

 

Shown here is the oil filter adapter from below. You can see the leak where it meets the engine block.

 

 

What the adapter looks like pulled. The oring shown was leaking and flat, the threaded tube in the middle is actually the bolt that holds it on (5/8" head, tight as heck too.)

 

Banjo bolt removed from rest of housing. Bolt head is under my pinky, you can see the smallest oring here.

 

Opposite side of adapter housing. You can see here where an oring goes.... this was the only one I didn't have. Had to go buy a kit from Northern Tool with an R-26 oring for this spot ($20, SAE generic oring kit).

 

Kit I got from NAPA ($5) that had 2 of the 3 needed orings in it. The big one for adapter to engine block, and the smallest one that goes around the banjo bolt.

 

 

Hope this helps someone else solve the problem. I had trouble finding any part numbers so I wanted to share what I did. 

 

 

[Big Dan]

Hopefully this works better, for you, than it did for me. I replaced all of the o-rings and still had a small leak from there.

Sent from my Pixel 4 XL using Tapatalk

[Tex06]

Just now, Big Dan said:

Hopefully this works better, for you, than it did for me. I replaced all of the o-rings and still had a small leak from there.

Sent from my Pixel 4 XL using Tapatalk
 

If this doesn't do it, I've got oil rated RTV that will definitely seal it....I just don't want to go that far yet. 

[cruiser54]

[Eagle]

Has anyone tried just doing an adapter delete? My fuzzy recollection from my AMC days is that the oil filters originally mounted directly to the block. Is there enough room in the MJ/XJ engine compartment to do the filter without the adapter?

 

[cruiser54]

Yep. The filter gets smashed when the engine moves around unless you use a little bitty filter. 

[75sv1]

The WJs, I think deleted the adapter. I was going to try a remote filter and an oil cooler at some point. 

[Eagle]

On 4/10/2022 at 11:21 PM, cruiser54 said:

Yep. The filter gets smashed when the engine moves around unless you use a little bitty filter. 

 

That's what I figured. Might be worth doing anyway. Using a stubby filter would eliminate the adapter and all those O-rings, and it would also eliminate issues of oil drain-back because the filter would be tipped slightly down (IIRC).

[watchamakalit]

I think its can be swapped to the late model but not eliminated.  I seem to remeber there is room to turn one down so the filter sits threads up, but not sure.