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#1 |
Registered User
Join Date: Aug 2007
Location: orlando
Posts: 456
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Oil pressure line location
I need to know if anyone has a 402, and where the oil pressure line is connected to the engine. Mine ('72) is connected at the left side on the engine just above the clutch bell crank. I've got (what I think) is really high pressure at the guage. It's almost pegged when driving, and close to that when idling. I can't find any blockages. I'm wondering if the line's connected to the engine in the wrong place and giving me an incorrect reading. Also; is there a way to check an oil pressure guage for accuracy? Thanks..............
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A man's thoughts devise his ways; but it's GOD that directs his steps. |
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#2 |
Watch out for your cornhole !
![]() Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Re: Oil pressure line location
That's the correct spot for the pressure line. It sounds to me like you have a high volume oil pump in your engine. Probably added during a past rebuild.
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I'm on the Instagram- @Gearhead_Kevin |
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#3 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: Oil pressure line location
assuming the guage is acurate (they were acurat-ISH 40 years ago) pegged is 60 pounds, straight up is 30 pounds.... you can probably fugure the math on the rest.
So pegged isn't all that high. |
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#4 |
Registered User
Join Date: Oct 2009
Location: Sacramento, CA
Posts: 161
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Re: Oil pressure line location
Good info, but where did you get the specs on the pressure gauge?
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1972 Chevy C-10 ~ 188,000 miles give or take |
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#5 |
Registered User
Join Date: Jul 2007
Location: Salina, Kansas
Posts: 1,998
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Re: Oil pressure line location
yes its on left side right by number 7 cylinder. real small line. and to your question about running high pressure.. im running a 402 and when im idiling i run the last mark on the gauge before high. and when i rev it or hit the gas a bit it goes up to high.. so you should be fine
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1972 C-10...402/400..flowmaster 40 series 1967 Mustang 347 stroker/C-4 1966 Mustang 289/3-speed 2013 Mustang V6/6speed w/300 ponies I may be 23, but i sure do knows 67-72s are sexy! Its not MPG its smiles per gallon! build started 11/25/08 build thread: http://67-72chevytrucks.com/vboard/s....php?p=2993796 |
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#6 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: Oil pressure line location
it says so on the back of the guage, and the rest is simple math.
The big trucks have 80 pound guages in them. |
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#7 |
Registered User
Join Date: Oct 2009
Location: Sacramento, CA
Posts: 161
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Re: Oil pressure line location
Good deal. Thanks!
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1972 Chevy C-10 ~ 188,000 miles give or take |
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#8 |
Registered User
Join Date: Jan 2006
Location: Take Off
Posts: 1,908
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Re: Oil pressure line location
My rebuilt 396 reads 60 psi at about 3,000 rpm, but about 30 psi at idle. I believe it has a high volume pump. Can't remember, was built over 15 yrs ago.
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#9 |
Registered User
Join Date: Aug 2007
Location: orlando
Posts: 456
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Re: Oil pressure line location
What a relief! Thank you ALL for your advice, & experiential knowledge.
__________________
A man's thoughts devise his ways; but it's GOD that directs his steps. |
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