Series MM oil pump

for those with Series MM sidevalve cars produced between September 1948 and February 1953

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manlyvaleaussie
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Series MM oil pump

Postby manlyvaleaussie » Thu Aug 23, 2018 6:53 pm

Does anyone know of a NOS or rebuilt oil pump for the later side valve engine, 1952 with the external oil filter. Thanks, Paul Follett.

RobThomas
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Re: Series MM oil pump

Postby RobThomas » Fri Aug 24, 2018 7:10 am

The ex-Centurion Tank ones would be alright, if you can find one. I bought a set of gears for a pump a few years ago. You could also buy the bush and reamer to change the shaft many years ago. Hard to find these days. Morris 8 gears might be available?
Cardiff, UK

alanworland
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Re: Series MM oil pump

Postby alanworland » Fri Aug 24, 2018 9:55 am

When I rebuilt my engine (80k ago) I found the gears had worn 'counterbores' in the end plate so I had it surface ground flat again.

Alan
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sparesman
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Re: Series MM oil pump

Postby sparesman » Sat Aug 25, 2018 11:25 pm

RobThomas wrote:
Fri Aug 24, 2018 7:10 am
The ex-Centurion Tank ones would be alright, if you can find one. I bought a set of gears for a pump a few years ago. You could also buy the bush and reamer to change the shaft many years ago. Hard to find these days. Morris 8 gears might be available?
Centurion tank engine pump runs at a much higher oil pressure
Bryan Gostling
1952 MM 2dr saloon in Thames Blue UNO212
1953 S11 Traveller in Birch Grey - oldest survivor ? Export model now reg PPO924
1953 S11 Traveller in Black - 3rd oldest PPX344

RobThomas
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Re: Series MM oil pump

Postby RobThomas » Sun Aug 26, 2018 8:33 am

Thanks, Bryan. Is it a different pump or a different relief valve?
Cardiff, UK


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