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BB HV oil pump oil #2716668
11/17/19 12:05 PM
11/17/19 12:05 PM
Joined: Dec 2007
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gainsville, usa
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johnfin Offline OP
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I found a HV oil pump in my garage and was thinking of using it my stock 440 rebuild. Non race engine. Is this a bad idea?

Last edited by johnfin; 11/17/19 12:06 PM.
Re: BB HV oil pump oil [Re: johnfin] #2716670
11/17/19 12:09 PM
11/17/19 12:09 PM
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West Plains, MO
DrCharles Offline
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Stock clearances? Stock RPM? Use a stock pump.
In this application, a HV pump will just waste power and heat the oil more by circulating the excess back through the relief valve. twocents

Re: BB HV oil pump oil [Re: DrCharles] #2716704
11/17/19 01:15 PM
11/17/19 01:15 PM
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Ontario, Canada
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Stanton Offline
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Stanton  Offline
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What he said !!

Re: BB HV oil pump oil [Re: johnfin] #2716763
11/17/19 03:12 PM
11/17/19 03:12 PM
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Bend,OR USA
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Cab_Burge Offline
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I use them on all of my engine builds regardless of the application shruggy
Oil supply is like money, HP, traction, sex,common sense, fun and a lot of other things a man can never have to much of whistling AKA I like them up


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: BB HV oil pump oil [Re: Cab_Burge] #2716810
11/17/19 06:12 PM
11/17/19 06:12 PM
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Downtown Roebuck Ont
Twostick Offline
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Downtown Roebuck Ont
Depends on how "rebuilt" you plan to go whether it's necessary or not.

Proper machine shop build with all clearances checked and corrected to stock non race specs, not necessary.

Old school loose race clearances or just a backyard hone, re-ring with new rod and main bearings on a 100,000 mile core, probably not a bad idea.

Will it hurt anything? Not likely.

Make sure you disassemble it completely and clean it. Countless examples of machining debris left in them from manufacture causing the rotors to jam and shear off the pump drive, making engine go boom.

Kevin

Re: BB HV oil pump oil [Re: Cab_Burge] #2716814
11/17/19 06:19 PM
11/17/19 06:19 PM
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Rio Linda, CA
John_Kunkel Online content
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Originally Posted by Cab_Burge
Oil supply is like money, HP, traction, sex,common sense, fun and a lot of other things a man can never have to much of


Nice cliché but...............


The INTERNET, the MISinformation superhighway
Re: BB HV oil pump oil [Re: John_Kunkel] #2716825
11/17/19 06:50 PM
11/17/19 06:50 PM
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Posts: 9,436
Blair County,PA
62maxwgn Offline
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Speaking of oil pumps!! work

Picture 1028.JPG
Re: BB HV oil pump oil [Re: johnfin] #2716916
11/17/19 09:37 PM
11/17/19 09:37 PM
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Usa
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A39Coronet Offline
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It'll peg the dash needle but we've had two decades of use without issue on a mild 440. No clue the tolerances.


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Re: BB HV oil pump oil [Re: DrCharles] #2716936
11/17/19 10:00 PM
11/17/19 10:00 PM
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Dcuda69 Offline
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Originally Posted by DrCharles
Stock clearances? Stock RPM? Use a stock pump.
In this application, a HV pump will just waste power and heat the oil more by circulating the excess back through the relief valve. twocents


Pressure and volume are different things. You can have a high volume pump with a 40 psi spring in the relief valve.

Re: BB HV oil pump oil [Re: Dcuda69] #2716959
11/17/19 10:30 PM
11/17/19 10:30 PM
Joined: Apr 2006
Posts: 4,220
West Plains, MO
DrCharles Offline
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Quote
Pressure and volume are different things.

You don't say. eyes

More importantly, if the engine clearances don't need enough oil to pass the full pump volume at 40 psi (or whatever the relief spring pressure is), the rest will circulate through the relief valve, as I pointed out to begin with! The gerotor pump is a positive-displacement design. Every revolution, the oil has to go somewhere. If it's not going through the bearings, lifters, etc. then it is just wasted volume.







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