1958 G11 Crankshaft

Information relating to the Matchless G11 or AJS Model 30 600cc twin
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Location: WEST SUSSEX UK

1958 G11 Crankshaft

Postby g80csp11 » Fri Dec 28, 2012 6:23 pm

Can anyone tell me the thread size in the end of the G11 dynamo crankshaft
I want to tap out thread after the alternator adaptor sheared off

Does anyone have a alternator adaptor that I could purchase or copy

Member
Posts: 844
Joined: Mon Jan 01, 1990 12:00 am
Location: WEST SUSSEX UK

Re: 1958 G11 Crankshaft

Postby g80csp11 » Sat Dec 29, 2012 10:45 am

looks like it's a (9/16) inch _ 20 Tpi Cycle thread , RH thread
Can anyone confirm before i buy a new tap ?

Member
Posts: 844
Joined: Mon Jan 01, 1990 12:00 am
Location: WEST SUSSEX UK

Re: 1958 G11 Crankshaft

Postby g80csp11 » Sat Dec 29, 2012 12:37 pm

Next question , is it cycle thread or UNF both 20TPI 9/16 "
The gearbox main shaft on a CP box fits , but the rear wheel spindle off my 67 P11 does not (both 20TPI 9/16")
Difference I believe is the thread depth between thread forms

Have I anwered my own question , earlier thraed on CP box mostlikely to be cycle thread

Hopefully someone knows the answer

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