You two got me worried, so when I had my 600 to bits today for a pre-season clean I checked my pulleys. Fortunately both are fine. Monstermob- I have had problems with loose woodruff keys in the past (many, many years ago on a car alternator) and had an engineering company repair the damage (as I recall they filled the old slot with weld and re-machined it). However, given the very hard nature of the camshaft material and the accuracy required I'm not sure that this is an option for you. Your idea of machining a larger keyway may work, though. |