Crescent CS500 - Question

[corin_huke]

I have a question for all of you guys regarding the Crescent engines produced in the 70s

We've recently acquired a CS500 which be believe to be of circa 1973/4 vintage

When pulling the engine apart, we discovered that the crankshaft was a little out of the ordinary (so we believe anyway). It's a full circle (disc) crank, but unlike the early full circle cranks, this one appears to be forged rather than machined from a solid

I wonder if any of your guys that own Crescents now, or back in the day, have encountered a similar crank. We think that this is pretty much as it came out of the factory in Uppsala, Sweden and certainly, the motor has never found its way across the pond, so it'll not be the work of Dick O'Dea or others

Just wondered if anyone could throw any light on it

A few photos are attached. Note also that the crank has been balanced somewhere over a period of time. Not sure if this is original Crescent work

Any info would be much appreciated

As with the other Crescent CS we have, we are planning on restoring and racing this is the increasingly popular Classic Hydro series that we have in Europe