Hello there
I have a 49 B Rap HRD with the old style 3.5 inch dynamo cradle. The dynamo strap is held on one side by a 1/4 Whit "T Bar," which has been pulled out consequently stripping its threads in the alloy crankcase.
It seems to me the best repair for this if feasible is to make a steel insert threaded 1/4 whit on the inside and 3/8 whit on the outside. I can drill the existing hole out and tap it.
Can anyone re-assure me that there is enough material in the crankcase to do so, I imagine yes, but can't see from the pictures / diagrams I have and someone out there may either know or have an early twin crankcase to inspect.
Many thanks
Dave Jackson
I have a 49 B Rap HRD with the old style 3.5 inch dynamo cradle. The dynamo strap is held on one side by a 1/4 Whit "T Bar," which has been pulled out consequently stripping its threads in the alloy crankcase.
It seems to me the best repair for this if feasible is to make a steel insert threaded 1/4 whit on the inside and 3/8 whit on the outside. I can drill the existing hole out and tap it.
Can anyone re-assure me that there is enough material in the crankcase to do so, I imagine yes, but can't see from the pictures / diagrams I have and someone out there may either know or have an early twin crankcase to inspect.
Many thanks
Dave Jackson