Rolls-Royce 20/25 - mains oil feed



tab washers


The old and the new.  The three types of tab washers needed to secure the main bearing pipework.

cap union


Number 1 main bearing cap with the oil supply pipe connected.  A copper or aluminium washer acts as a seal between the banjo and main bearing cap.

block union


The oil supply pipe as it exits the crankcase.

mains oil pipes


All of the pipes in place and locked down.



All of the tappets were lubricated and the guides coated in assembly paste prior to installing in the crankcase.