Some years ago my clever brother added an extra oil filter to protect the oil pump on his Mini racer. As you can see in the enclosed photo he brazed a 15mm copper pipe to the suction plate on the back of the gearbox. This is connected to a remote filter not shown. The output from this filter passes into the back of the block on its way to the oil pump. As you all know there is a lot of gearbox debris that gets sucked up and wears away the oil pump. I have used this system on my S engine for several years and the oil pressure has always been very high. I am currently switching the rod change gearbox to a remote one in order to fit into my 1970 Clubman so I thought I would share this detail with you whilst the unit was out of the car.
Edited by salient, 13 April 2022 - 02:32 PM.