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BUSY BOLTERS Are you one?  The Shop Area
continues to pull in the most views on the Stovebolt. In August alone there were over 22,000 views in those 13 forums.
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7 members (TUTS 59, DES57, BLUEMEANIE, Peggy M, Waveski, 55shaker, Joe W),
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Jul 21st, 2025 | | | | Joined: Jan 2006 Posts: 67 'Bolter | | 'Bolter Joined: Jan 2006 Posts: 67 | Anyone have the volume specs for M11 and M29 oil pumps?
Thanks.
Larry
46 Chevy 1/2 ton stake - family truck for 78 years
USAF 75-81
| | | | | Joined: Feb 2004 Posts: 28,674 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 28,674 | Which engine do they fit? Bearing clearances and the condition of the crankshaft have a lot more to do with oil pressure than a specific pump volume does. Are you experiencing low oil pressure? In 60+ years of doing professional engine work, I've seen exactly two oil pump failures, and very few worn out pumps. Those were usually caused by the pump ingesting metallic particles which scored the housings and damaged the gears. Pump volume is directly proportional to engine RPM.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jan 2006 Posts: 67 'Bolter | | 'Bolter Joined: Jan 2006 Posts: 67 | I'm building a full pressure 216 with a full flow oil filter.
Larry
46 Chevy 1/2 ton stake - family truck for 78 years
USAF 75-81
| | | | | Joined: Feb 2004 Posts: 28,674 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 28,674 | The Melling M-45 is virtually a bolt-in swap. It's the same one that fits the 235 engine, and only requires a bit of creative plumbing to connect the inlet and outlet tubing. I'm working on an adapter to fit a small block V8 oil pump (Melling M-55) to stovebolt inlines, including the 216, which will supply about 30% more volume than the M-45.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jan 2006 Posts: 67 'Bolter | | 'Bolter Joined: Jan 2006 Posts: 67 | Thanks Jerry. I'll check out the M-45.
Larry
46 Chevy 1/2 ton stake - family truck for 78 years
USAF 75-81
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