Re: Oil Pump Conversion

Posted by Jack Vines On 2019/8/13 15:17:04

Hi, Karl,

If your engine is sound, the installed spring should be OK.
If your engine is worn, you may need the optional spring. It is easier to change oil weights than oil pump springs.

Whichever, install the pump per instructions and verify there is free play, that is the drive shaft can be moved up and down slightly; 1/8" is enough. If there is no free play, grind 1/8"-1/4" off the bottom of the drive shaft.

Usually, no adjustment is necessary, but with the hundreds sold, we've found one or two that were too tight. It seems with the Delco and Autolite distributors, gaskets under the distributor and no gasket, there are variations.

jack vines