h/v oil pump

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Jun 19, 2002 | 08:45 PM

graymule72

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Joined: Jun 2002

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From: rocky mt

h/v oil pump

i recently rebuilt the 302 in my '72 F-100. it already had a h/v oil pump and i decided not to change it. now i'm starting to hear that it's better to use a stock pump. i'm running about 85 psi at cruising speeds. is that too much and, if so, what can i do about it. i heard you can add an xtra quart of oil in the crankcase. would appreciate any info.........thanx

Jun 19, 2002 | 10:32 PM

dinosaurfan

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Joined: Aug 2000

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From: SW Michigan

h/v oil pump

gray, 85 is a lot, but I don't think you are going to hurt anything. You don't have bearing erosion problems until you are consistantly over 100. I would leave the HV pump in there. FWIW, the shop where I work puts an HV in every engine we build. DF

Jun 20, 2002 | 12:53 AM

Like M. Fords

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Joined: Jun 1999

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From: LAT 46.55501° & LON -122

h/v oil pump

Check this thread out from the Windsor Forum:

https://www.ford-trucks.com/dcforum/DCForumID18/518.html

The 302's distributor gear in my Bronco was almost as bad as that one pictured after about 3,000 miles of using a HV pump. I get about 90 PSI at startup and 70 PSI at warmed-up crusing speed. Compared to the FE's, a Small Block's gear is much smaller and may be the reason they don't hold up to bigger pumps as well.

I have about 3,000 miles on a new distributor now but still have the same HV pump. I should probably check it soon to see how it is holding up before I am forced to walk home some day.

Jun 20, 2002 | 01:41 PM

1970moose

Mountain Pass

Joined: Feb 2002

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h/v oil pump

I'm all for high volume. Just don't go putting a high pressure pump in there.

Jun 25, 2002 | 11:24 PM

dinosaurfan

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Joined: Aug 2000

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From: SW Michigan

h/v oil pump

Guys, a 25-30% increase in pump volume is not going to eat dizzy gears. The problem was caused and is still being caused, (in small blocks anyways), by the teeth being ground incorrectly on the camshaft. I don't know who Comp buys their blanks from, but i have seen dozens of Comp cams in small block fords which are eating dizzy gears. Other brands of cams don't seem to have this problem DF

Jun 28, 2002 | 07:58 PM

proeliator

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Joined: Sep 2000

Posts: 8,238

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From: Oregon

h/v oil pump

Hmmmm, I'd wondered about that. It never made sense to be that the @30% pressure increase would harm the dist. gear but I'd never heard an alternative reason. Its not the first time I've heard bad things about comp cams. Anways, the high volume (not high pressure!) is the way to go in an FE.