B3.9 and B5.9 Series Engines
Section 7 - Lubricating Oil System - Group 07
Install the back plate.
Failure to fill the pump with oil during installation can
result in a slow prime at initial engine start-up, resulting
in severe engine damage.
Lubricate the lubricating oil pump with clean lubricating
Make sure the idler gear pin is installed in the locating
bore in the cylinder block. Failure to do so can cause
Install the lubricating oil pump.
Tighten in the sequence shown.