shim oil pump

Backlash2032

New Member
Sep 20, 2010
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5mm

And by re reading what you wrote, I now understand.

Take the one big bolt off of the oil pump. I put my washers behind the spring. Replace bolt.
 
Last edited:

RTtim

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Mar 7, 2011
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lake isabella
What is the purpose of shimming the oil pump and when should it be done?

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Backlash2032

New Member
Sep 20, 2010
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Nebraska
It increases the spring pressure on the oil pressure relief valve. This will do two things: Increase "max" oil pressure, and increase overall oil pressure. This is because a spring is not a solenoid, so it will open before the "max" pressure.