Posted by Ben (126.96.36.199) on March 15, 2004 at 00:49:35:
I am convinced that this is not cavitiation, unless you can convince me otherwise. The boat is a 1962 dyer glamour girl launch. Cruising along, the boat gets to top speed, this is about half the throw of the throttle and 2200rpm. If given anymore throttle, VROOOOOOOM. Initial thoughts were those of cavitation. However, in another situation, that being where I am idling in gear, either forward or reverse, I have a tendancy to bump into the throttle lever sometimes when I am not paying attention. This sudden change from no throttle to max throttle causes the rpm's to go sky high, upwards of 4000, more if I dont catch it intime, and yes...VROOOOOM. The boat will be moving at no more than idle speed. Indications are that the shaft is not spinning. My inclinations are that some type of transmission tightening is necessary. What are yours?