Quote:
Originally Posted by phoenix
Do you have a spec sheet for the SCC also? I found a reference on the web that these produced 135 BHP from 1099.6 cc (83.5 mm bore and 50.20 mm stroke) but with the same size inlet valve - so I'd like to find confirmation of that. Also Rob mentioned that some SCCs had 1.55" inlet valves.
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Actually, it was the SCD 1500cc engine that was listed as having a 1.55" intake valve. I don't know if they ever built one or not.
Robyn, the small shaft in the nose of the crank is what drives the crank gear. The crank gear floats on the end of the crank on a bronze bushing and the two pins limit its rotational travel. I am assuming this was all done to damp out torsional vibration and prevent it from being transmitted to the cam drive gear train.