AJS & Matchless Owners Club

Posted: **Thu Dec 26, 2019 12:19 pm**

Hi, Can you help with the specifications (or cross section drawing) of the 1964 twin oil pump base plate pressure relief valve.
The parts book lists the relief spring as 028503. Does anyone know the free length of this spring and the order of assembly of the relief valve parts? Are there any spare parts available for the relief valve?
Regards...........David

Posted: **Fri Dec 27, 2019 5:20 am**

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PR valve components.jpg

1964 Oil pressure relief valve specifications.

Please review photos attached and let me know if you can help with the specification for the main PRV spring 028503, as I believe mine is too short?

Posted: **Tue Aug 23, 2022 4:50 am**

Hi All did anyone come up with the length for the 028503 relief valve spring

cheers

AJS & Matchless Owners Club

1964 oil Pressure relief valve specifications

1964 twin oil pump relief valve specifications

1964 oil Pressure relief valve specifications

Re: 1964 oil Pressure relief valve specifications