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Discussion Starter #1
Does anyone know the function of this boss on the lower timing case that is over the cast in oil gallery?

20150504_183417.jpg

Because I have one on an engine with a flaw )see the small cresent shape:

20150504_180900.jpg

Which results in this oil leak... It must have been the case since the engine was new (early 70's).

20150504_183306.jpg

I have a cunning plan to fix it, engine in. Just wondering if anyone else has seen such a thing, or knows why this is there.
 
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