The Nuffield Tractor Forum

Posted: **Sat Sep 17, 2022 12:11 pm**

Dear All,
I'm looking for a diaphragm for BMC 5.7 l six cylinder motor with Simms injection pump.
Please let me know where to find a complete diaphragm that governs correctly.
Please see photos below:

Posted: **Sat Sep 17, 2022 7:59 pm**

Is is different from a 4 cilinder diaphragm?

Posted: **Thu May 04, 2023 2:31 pm**

Up
Please help and propose where to find diaphragm?

Posted: **Thu May 04, 2023 8:16 pm**

I still believe it's the same as the one for a 4 cilinder (Simms SPE4 vs SPE6)
What do you mean complete? Including the metal parts? That can be a bit harder to find but should be possible since the SPE pumps aren't uncommon (Fordson used them too)

The Nuffield Tractor Forum

BMC 5.7 Diaphragm

BMC 5.7 Diaphragm

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Re: BMC 5.7 Diaphragm

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