030401 Washer for cyl. head stud

Information relating to the Matchless G12 or AJS Model 31 650cc twin
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030401 Washer for cyl. head stud

Postby mdt-son » Thu Sep 05, 2019 5:48 pm

Hi all,

This washer is specified for the 1964-66 engines having 3/8"cylinder and head studs.
I am looking for dimensions or a sample to buy. Before asking, neither AMOC Spares nor Russell carries them.

I appreciate your help.


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Location: ESSEX UK

Re: 030401 Washer for cyl. head stud

Postby Rob Harknett » Thu Sep 05, 2019 9:24 pm

I do not know the answer. But, I find such washers are usually quite thick and solid. Just any old washer may dish, if too thin and wrong dimensions. Best to try and find out what you need. You may see evidence of wrong washers used causing damage to the surface it sits on, so its no longer flat. So if a thin washer is used it may dish quite easy.

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