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byubronco

Y426 Small Oil Leak

6 posts in this topic

New to the 2000 426. I have a small oil leak from the screw (10mm head) near the decompression lever/cable on the head. It has a copper gasket and the oil is definitely leaking from this screw. Can I pull that screw out to look at/replace that copper gasket without jacking anything up? I just don't want to pull the screw out and mess up that decompression lever.

Thx

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yes its fine to pull it out. All it does is keep the decomp arm in place, but you will be fine by removing the screw.

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Be careful tightening it. You may find it already stripped.

First, sorry for posting in the wrong section.

Second, I think I found the problem. I pulled the screw out and sure enough, someone stripped it and put a heli-coil in it. It looks like they didn't install it correctly and left a small piece of the heli-coil above the sealing surface, so the copper gasket doesn't sit flush. I plan to file that little bit off tommorrow and see if I can get a good seal. It seems to tighten up OK, although the screw doesn't look like it is in good shape. Might replace it just to be safe.

Thanks for the info

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First, sorry for posting in the wrong section.
Wrong section?

Anyway, where I have run across problems like off-square thread repairs and stuff, I have found that a little #3 "Aviation" Permatex on the threads helps stop the leak.

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Wrong section?

Anyway, where I have run across problems like off-square thread repairs and stuff, I have found that a little #3 "Aviation" Permatex on the threads helps stop the leak.

yeah, I had originally posted this in a general forum before I knew that the specific make/model forums existed (didn't scroll down to find them). A mod moved the thread here.

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