Quote:
Originally Posted by spock505
The pump seal looks to be at the bearing as opposed to coupling face, either way never had any leaks when unbolted.
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He's referring to the O-ring seal at the block casting that the IP sits against. It isn't shown in your diagram. I wouldn't be too worried about causing leaks there, the faces of the block and IP are machined, so there shouldn't be too much of a leak risk. Check timing before randomly adjusting things. If the pump timing is still good (or even within a couple of degrees), it isn't the cause of nailing.