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Thread Tools | Display Modes |
10-15-2008, 12:35 AM
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#1 |
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Registered User
Join Date: Aug 2007
Location: West Hills, California
Posts: 679
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Factory oil pressure gauge reading
How accurate is a factory oil pressure gauge compare to aftermarket one in a 69 c10? I like factory gauges but my oil gauge reads weird. Hot oil pressure at 800rpm in gear is 3/4 reading. Anything over 2200 rpm and a needle is slightlly over the H. All readings after driving for 30-40 min and 180 temp. Is 3/4 reading 30psi or so? Thanks
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10-15-2008, 04:19 AM
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#2 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: Factory oil pressure gauge reading
I have a master gauge that I have compared the factory gauges to and the readings have been close. Your 69 probably has a 60 psi gauge in it so a 3/4 reading would be approximately 45 psi.
Jim
__________________
1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC |
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10-15-2008, 06:33 AM
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#3 | |
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Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: Factory oil pressure gauge reading
Quote:
 s/t
__________________
1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. 
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