Phil,
In a message dated 96-12-02 23:53:08 EST, jello@dns.ida.net (Phil Bates)
writes:
<< When I start up the car, I have plenty of oil pressure. ..... When it is
warm, something weird happens. First, the pressure goes up to the 65-70 psi
range, and as the engine speed increases it comes way down, like to 20 psi or
so. .....
Any suggestions?? >>
Look for a dent in the bottom of the oil pan. It doesn't take much, just a
little upward bow in the center. My MGA had this problem, and it ate up a
couple of sets of rod bearings and a crankshaft before I figured it out. A
little dent in the pan moves the bottom up against the oil pickup tube, the
clearance at the oil inlet becomes zilch, and the pump cavitates at high
speeds. Not hard to fix. Just remove the pan, give it a good downward thump
in the center with you fist, and install a new pickup screen.
Barney Gaylord -- 1958 MGA
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