any engineers in the house?

Randy Grein randygrein at
Tue Jan 19 21:52:20 PST 2010

No. Problem is in part clamping force, part in distribution, and part  
in that the cranking forces are not going to be dependent on the mass  
of the starter clutch assembly but of the crank, rod and piston, to  
say nothing of compression ratio. Very unlikely it's going to need  
half the bolts without breaking.

Randy Grein, WMRRA #141

On Jan 19, 2010, at 9:07 PM, Steve Robertson wrote:

> On a Gen1 the part of the starter clutch assembly that bolts to the  
> ignition rotor
> weighs ~640g and is uses 6 bolts. If you were to replace that with a  
> piece that
> only weighs ~140g would it be possible to use only 3 bolts?
> I have no idea how to measure things like the required clamping  
> force and any
> other factors that would be involved in such a decision.
> flame away :-)

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