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The longer bolt on left side has an enlarged hole on block and block side of oil pump just like the bottom right side hole does. Dowel may be the wrong word, but it is like a sleeve that fits in that hole acting as a guide and the bolt runs throught it. I would post a pic if I knew how.


>>>*Oil pump support dowel, it is actually a part that comes with the timing cover. It keeps the oil pump perfectly aligned.

I would think a leak would develop without that there. Find an old cover in a wrecking yard, pull a dowel and tap it in place. All there is to it....*EB

*Beats the he** outa me!....*LOL**...