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Oil Pump Protection With An Extra Filter


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#1 salient

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Posted 13 April 2022 - 02:30 PM

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.


#2 Quinlan minor

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Posted 13 April 2022 - 03:01 PM

 "As you can see in the enclosed photo" ?


Edited by Quinlan minor, 13 April 2022 - 03:02 PM.


#3 PoolGuy

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Posted 13 April 2022 - 03:13 PM

 I have used this system on my S engine for several years and the oil pressure has always been very high.

Check the pressure relief valve.



#4 nicklouse

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Posted 13 April 2022 - 03:36 PM

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.

Been there done it. Removed it. Need to find a better way of implementing it than I did in 95.






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