04-04-2021, 03:34 PM
nice one R,
ive opened a few engines like that
a common one, after an engine has been worked on, on the bench. is the pump base plate stands proud of the sump. when moved it will clog with dirt.
check there are actually springs in the pump, and they are long enough to push the vains out.
a recent engine ive done, i didnt know the top gallery had been plugged to fit a filter. so although we got oil at the gauge pipe. there was no oil at the jets. but off the gauge with pressure.
you keep learning even after 30 years.
ive opened a few engines like that

a common one, after an engine has been worked on, on the bench. is the pump base plate stands proud of the sump. when moved it will clog with dirt.
check there are actually springs in the pump, and they are long enough to push the vains out.
a recent engine ive done, i didnt know the top gallery had been plugged to fit a filter. so although we got oil at the gauge pipe. there was no oil at the jets. but off the gauge with pressure.
you keep learning even after 30 years.