Y426 Small Oil Leak


5 replies to this topic
  • byubronco

Posted March 02, 2009 - 07:06 PM

#1

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

  • spc mike

Posted March 02, 2009 - 07:58 PM

#2

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.

  • grayracer513

Posted March 02, 2009 - 08:39 PM

#3

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

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  • byubronco

Posted March 02, 2009 - 11:04 PM

#4

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

  • grayracer513

Posted March 03, 2009 - 06:57 AM

#5

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.

  • byubronco

Posted March 03, 2009 - 12:29 PM

#6

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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