Oil pressure in all 50s and 60s Austin engines is controlled by the bypass
valve and spring. You probably just need to replace the spring and that
will cause your pressure to go up again. I would replace the valve (i.e.
the plunger) and spring with every rebuild.
On Mon, Jul 28, 2008 at 11:34 PM, James Shope <firstname.lastname@example.org>wrote:
> with it getting hotter and hotter each day here in vegas, i have watched my
> oil pressure drop down to almost zero when idling after the oil has gotten
> very hot. i suspect the oil pump but i removed the valve cover to check
> pressure at idle. oil is coming out all of the rockers as normal, and when
> loosed the oil feed nut on the rocker arm, oil shot out all over my engine
> at what i considered a very good pressure. any idea what could be the
> problem. have checked bearings and they are in excellent shape. could it
> the oil pump or something wrong in the oil distribution system?
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