Bill Mantz wrote:
>
> Here's the problem. Car has good oil pressure at startup, then after
> about 5-10 miles the pressure starts to drop and temperature starts to
> rise.Car had a complete head job in March according to previous owner -
> invoice shows valves, guides, seals, and machine work. I dropped the oil
> pan with the intention of replacing the main bearings. Although outside
> appearance means nothing, the whole bottom end looks new. Spotless, the
> pickup filter even shines. Before I drop the caps on the bearings, is
> there any thing else I might check first that could be the problem?
If you are talking about a 1275, check the oil pressure relief spring.
I put a new one in my Sprite when I rebuilt it. Little did I know it was
of top asian quality. It lasted a few months and I lived with low oil
pressure on the gauge. Peter C sent me a REAL, non taiwanese spring and
I now have 60 psi when hot even after cruising for 3 hours on the
turnpike.
I rebuilt my own engine, I trust my machine shop too, I thought it was
just the gauge calibration so I replaced the gauge. After some thought,
I checked the OPR spring, it was shot. A spring from a pen was stronger
then this whimpy asian crap I pulled out. I had a helluva time getting
the the new spring in and I knew that was my problem.
--
Frank Clarici
Toms River, NJ
If you are not living on the edge,
You're taking up too much space!
http://www.exit109.com/~spritenut
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