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Oil leak from lower timing cover bolt hole

T

tweeder

New member
I finally found the source of my leak after changing the oil pan and oil filter adapter gasket. It's leaking from the lower bolt hole next to the oil filter adapter. I tried a few tomes last night with silicone and it still leaks. So I put an O ring as well as silicone in there to see what that does. But in the mean time while it's drying, what do y'all do?
 


I did that a first and it leaked. So I figured it was on the outer side of the threads along the shaft of the bolt, so I silicones the whole shaft and that still leaked. So hopefully the silicone on the shaft with the o ring under the head will stop it.
 
Ahhhh, that didn't work. I let it set up overnight and when I got to work this morning it was still leaking. I took a good look and I don't see the timing cover cracked at all. I put lots of thread sealant on the threads and i siliconed the whole shaft liberally. what about oil residue in tye hole and on the bolt causing it not to seal? I am running synthetic oil. I can see it coming out the end of the hole underneith the bolt head. What about putting a copper washer there like on a brake calliper?
 
I will know in the morning when I get to work but so far it's not leaking. It was the bolt right above the bottom cover bolt, the one with the little stib sticking out. I remember taking that bolt out when I was running my belts as it was in the way since I don't have power steering and the belt runs directly up to the alternator, it was in the way.
 
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