Bill Hughes

Thanks for the schematic... that helps my understanding of the TJ's pump
operation... seems typical for engines.

Over the past 56 years I've had many cars... starting with a 40 Hudson,
33,34,36,37,38,41,67,73 Fords, 47,49,53 Lincolns, 41 Plymouth,
49,49,51,47,65,80,86,97,51 Jeeps, 65,67 Scouts, 65,73 Chevies, 88 Dodge,
and none ever had oil pump failures. I just don't get it.

If the camshaft turns a "jackshaft" which drives the pump, can worn
bearings be the culprit? The pressure does not always drop when the
engine is at idle... I'd guess only about a third of the times when the
engine speed drops to idle... most of the time it drops to about 20-25.

It NEVER drops at road speeds... city or highway.

Ralph



God exists, or God does not exist, or I am God and I am dreaming all
this.