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1958 G11 Crankshaft
Posted: Fri Dec 28, 2012 6:23 pm
by g80csp11
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
Re: 1958 G11 Crankshaft
Posted: Sat Dec 29, 2012 10:45 am
by g80csp11
looks like it's a (9/16) inch _ 20 Tpi Cycle thread , RH thread
Can anyone confirm before i buy a new tap ?
Re: 1958 G11 Crankshaft
Posted: Sat Dec 29, 2012 12:37 pm
by g80csp11
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