Oil Pump: Description and Operation
Oil pumpOil circulation has been changed so that the oil pressure relief valve in the oil pump is on the "clean oil" side.
The following have been changed:
Oil filter
Attachment flange for oil filter
Cover plate
Oil circulation within pump:
Old oil circulation is from the pressure side -F- to the oil filter and, at the same time, via bore -A-, through channel -C-to the pressure relief valve -D-.
New oil circulation is from the pressure side -F-, via the pressure relief valve in the oil pan, through the oil cooler and the oil filter, back to the oil pump -G- to recess -H- and, at the same time, via channel -B- to bearing positions, and via channel -C- to the pressure relief valve -D-.