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Oil pump gear clearance

Started by Roberts 63, January 18, 2022, 07:25:37 PM

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Roberts 63

January 18, 2022, 07:25:37 PM
Hello All I have a 63 Cadillac with a 390 I'm putting new oil pump gears in it and would like to know what the clearance is from the gear to the case on the sides.

dadscad

#1
January 21, 2022, 05:26:39 PM
Backlash between drive gears, .008" - .012"
Clearance between pump body and gears, worn limits, not over .005".
New limits, .003" - .005".
Clearance between pump body drive shaft, new limits, .0010"- .0025"
Worn limits, not over .005".
Enjoy The Ride,
David Thomas CLC #14765
1963 Coupe deVille

Roberts 63

#2
January 22, 2022, 11:50:43 PM
Thank you Dave. That's exactly what I needed.
Quote from: dadscad on January 21, 2022, 05:26:39 PM
Backlash between drive gears, .008" - .012"
Clearance between pump body and gears, worn limits, not over .005".
New limits, .003" - .005".
Clearance between pump body drive shaft, new limits, .0010"- .0025"
Worn limits, not over .005".

dadscad

#3
January 23, 2022, 07:41:18 PM
You're welcome,  that's from the factory shop manual.
Enjoy The Ride,
David Thomas CLC #14765
1963 Coupe deVille
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