RCU Forums - Crankshaft sizes

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jlank

07-12-2006 09:29 PM

Crankshaft sizes

What sizes are the threaded parts of the Mac 32cc weedeater engines crankshaft? I need to know how to tell the size for possible switch to electronic ignition.
Thanks
Joel

davewallace

07-12-2006 10:34 PM

RE: Crankshaft sizes

Hi jlang.
Of the two that I have, one is a 5/16x24 and the other is a 1/2 inch thread. You can measure the diameter and count the threads. Example, 5/16x24 would be 5/16 diameter and have 12 threads in one half inch of lenght. You could alwaye take it to a good hardware store and match it up with the correct nut.

Dave

jlank

07-13-2006 05:24 PM

RE: Crankshaft sizes

Thanks dave

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