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Early Sprint Crank Identification

Posted: Sun Aug 19, 2007 9:51 am
by David6214
I am dis assembling a sprint engine which I believe to be an early one (engine number myseriously ground out!) i have yet to get it apart fully, but is there a way to tell the early (toughened?) cranks, different part number etc

thanks

Posted: Sun Aug 19, 2007 12:28 pm
by David6214
S'alright, Ken Wood gave me the info...

Posted: Sun Aug 19, 2007 6:07 pm
by tinweevil
Could you enlighten us all?

Posted: Sun Aug 19, 2007 6:59 pm
by David6214
normal crank has one hole, cross drilled has three in the big end journals one of hich is plugged with a ball bearing.....something like 3/8ths in. Basically if there is more than one hole its cross drileld (and all that other good stuff that goes with it)