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Mike Muir
Mike Muir
somewhere in the UK
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since selling the M20 i have had a massive sell off of bit for it ( man guys sure do buy this stuff)

I came across some WASSEL kick return springs , they look excellent!

I am fortunate that ive never had my A10 box in bits so i am wondering if the earlier return spring as per M series box will fit the latter B box as per A10 in which case i will keep them (or at least 2 on them)

thanks guys

PS I dont have an A10 parts book top compare numbers


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any comments (bump)


"There's the way it ought to be and there's the way it is" (Sgt Barnes)
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Original early M springs had an extra coil and do not fit the later M and B boxes but the plunger gearbox springs fit the early boxes. The springs in the plunger boxes are of course interchangeable. Not sure about the '46 - '48 B boxes though.

I've just re-read your post, I'm not familiar with the B/A series boxes but I doubt that the M springs are compatible.

Last edited by MattL; 06/05/21 12:09 am.
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the springs i have i got for M series box 48 on as per m20 etc

my B series box is in a plunger A10 ... as i said no parts book to compare numbers


"There's the way it ought to be and there's the way it is" (Sgt Barnes)
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B & M series pre-unit WWII & Post war boxes have the same part number 66-3058
A group plunger box is 67-3174 Never changed
Long strike A 7 used spring 65-3135
A series swing arm boxes used the same 67-3174


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good one thanks Trevor .......looks like im keeping the spare springs for the A10 then cheers

and yes the springs i have do have part no 66-3058 on bag ...glad i didnt sell all of them !


"There's the way it ought to be and there's the way it is" (Sgt Barnes)

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