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Series MM oil pump
Posted: Thu Aug 23, 2018 6:53 pm
by manlyvaleaussie
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.
Re: Series MM oil pump
Posted: Fri Aug 24, 2018 7:10 am
by RobThomas
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?
Re: Series MM oil pump
Posted: Fri Aug 24, 2018 9:55 am
by alanworland
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
Re: Series MM oil pump
Posted: Sat Aug 25, 2018 11:25 pm
by sparesman
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
Re: Series MM oil pump
Posted: Sun Aug 26, 2018 8:33 am
by RobThomas
Thanks, Bryan. Is it a different pump or a different relief valve?