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Oil pump won’t prime

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Oil pump won’t prime Empty Oil pump won’t prime

Post  Emkin September 28th 2019, 3:32 pm

I put a new Kaase oil pump in and can’t get it to prime. The drill is going counter clockwise. Any ideas or suggestions?

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Post  rmcomprandy September 28th 2019, 6:44 pm

Emkin wrote:I put a new Kaase oil pump in and can’t get it to prime.  The drill is going counter clockwise.  Any ideas or suggestions.?

Put 12 quarts of oil in the engine then after it primes, drain some out.

If it still does not prime ... you have other issues.

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Post  Emkin September 28th 2019, 7:36 pm

Thank you sir, I will try that.

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Post  BBFTorino September 28th 2019, 11:20 pm

Did you use a gasket between the block and oil pump?
And between the pick up tube and the oil pump?

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Post  Emkin September 29th 2019, 8:36 am

Yes

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Post  zbob September 29th 2019, 9:16 pm

in the relatively few engines I primed never used a  drill. always just used a speed/crank wrench. the description used a politically incorrect term in it. you can guess the rest.

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Post  rmk57 September 30th 2019, 12:25 pm

Man, if you have a HV oil pump and primed it that way you'd have arms like Hercules when it finally primed. Shocked

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Post  jasonf September 30th 2019, 1:03 pm

If you leave those oil gallery plugs out during a rebuild you will get no oil pressure.
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Post  tbirdmike October 1st 2019, 1:45 pm

growing up the old school guys would always take the cover off the pumps and put grease in them saying it need it to prime.

So Ive just always poured some oil in pumps before I install them to get oil inside them. Never had a priming issue doing this.

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Post  stanger68 October 1st 2019, 11:02 pm

tbirdmike wrote:growing up the old school guys would always take the cover off the pumps and put grease in them saying it need it to prime.

So Ive just always poured some oil in pumps before I install them to get oil inside them.    Never had a priming issue doing this.

Same here. Except I’ve evolved to using assembly lube the last few I’ve built.

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Post  BBFTorino October 1st 2019, 11:31 pm

So, either a plug was left out somewhere, or the pump is cavitating, or the pressure relief valve is stuck open, or there is a blockage somewhere.

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Post  stanger68 October 4th 2019, 4:45 pm

Are sure you have the right size shaft?

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Post  BOSS 429 October 4th 2019, 11:45 pm

wrong pickup tube

no pickup tube

pickup to far away from (oil) bottom of pan

oil filter

main galley plug left out

valley plug left out

not enough oil in pan

oil pump bad

could be a few diff things
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