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I have read all the posts on the link and sync threads including J.Reeves WOT timing. I have one quick question. Of the two marks on the cam (one marked "start") which one is "the" mark referenced in all the discussions about "the mark should line up with the cam follower roller..." I understand...
I am changing out the water pump on my 1984 70 hp evinrude. The old impeller is slotted with a keyway and the new has a plastic half round which seems to be desined for a "flatted" shaft rather than a keyed shaft. Is this new impeller correct? Am I to to assume they are a one type does all now...