A7SS Clutch

[Terryb]

Hi Guy's,

Can any body tell me if you can change out the standard 6 spring clutch on a 1955 A7SS, for a 4 spring clutch from a later model A7/A10? Both clutche assemblies operate a single primary chain.

Cheers Terryb

[Topdad]

Terry , yes you can and as a bonus you'll find a much nicer unit to work on but more importantly the use. You may need a special center adaptor as yours is early s/a but mine fits right on not sure when they are needed and when not .My '59 SSA7 needed one but my present box which I think was B33 doesn't .If you've got  the clutch just try it and if you need one contact the usual culprits ie draganfly ,cake st classics or SRM . Hope thats of help, BobH.

[chaterlea25]

HI Terry,
Yes, a worthwhile upgrade
BUT!!
You need to carefully check the primary chain alignment, as the depth of the shaft adaptors can vary,
altering the position of the chainwheel
Plenty of topics on here about the problem

HTH
John

[Terryb]

Thanks for the advice guy's. I have heard of the conversion adaptor, but never thought about the problem with the P/Chain offset. I'll look in ti that one before I purchase a 4 spring clutch assembly. Many thanks.