Mercruiser 470 oil pump

ddrieck said:

Rebuilding my Mercruiser 470 and I'm to the point of installing the oil pump.
Should I use a small amount of sealer between the oil pump and block?

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Scott06 said:

I would not put sealant that could get squeezed into the oil passages and potentially block flow ...

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ddrieck said:

Will priming the oil pump/system with an old distributor shaft pump up the hydraulic lifters?

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ddrieck said:

Will priming the oil pump/system with an old distributor shaft pump up the hydraulic lifters?

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Scott Danforth said:

not really, however soaking the lifters in oil overnight is recommended to pre-filling. Then when using a priming tool, or cranking the lifters should pump up a bit.

are these new lifters and a new cam? If so, make sure you get the break in right

or are these used lifters? if used, did you keep the lifters matched to their cam lobes?

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ddrieck said:

New lifter set
When I spun the engine on the stand I had forgotten all about the lifters and 4 fell out and landed on the floor and I couldn't tell which hole that came from. Couldn't number them for the exact hole so decided to get new and not risk destroying the the Very expensive camshaft. I will soak them overnight an prime them once ready to fire the engine up.

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