1963 Chevy Nova oil pressure

TROUBLE4U2

MEMBER
1963 CHEVROLET NOVA
V8
2WD
MANUAL
3,500 MILES

Engine sounds and runs good but oil pressure gauge only shows 10lb maximum revs up to 4000rpm Tried two different mech. Gauges. Changed oil and filter

Saturday, June 26th, 2010 AT 3:11 PM

3 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Do an engine flush don't work probable causes could be excessive engine bearing clearances or pressure relief valve

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Saturday, June 26th, 2010 AT 3:26 PM

TROUBLE4U2

MEMBER
2 POSTS

This is a 2 year old GM Crate engine with 3500 miles on it, In a 1963 SS Nova Convertible, Problem started about two weeks ago, Seems like the oil pressure went from an average of 35 - 45 lbs on the highway to 5 - 10 lbs of pressure at 65 MPH, again engine seems to run fine just very low pressure. Tested it with a mechanical oil gauge under the hood, Same reading!Changed the fittings, used a different guage (New AutoMeter gauge) What's up? Headed to Columbus GoodGuys July 9 10, 11. Any ideas?

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Saturday, June 26th, 2010 AT 5:11 PM

RASMATAZ

MECHANIC
75,992 POSTS

Is this from the mechanical gauge or the oil gauge indicator-try replacing the gauge.

Any engine knocking noises of any type-maybe we should try the oil pressure sending unit and see what happens

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Saturday, June 26th, 2010 AT 5:50 PM