In Reply to: 640 governor posted by Greg W on June 30, 2013 at 11:24:20:
On some of the early models the timing cover doesn't have to come off. There is a separate little housing on the timing cover with four bolts that will allow it to come off. The early ones had ball fly weights and the later ones have a sort of round shaft type fly weights and I think the whold timeing cover has to come off for that kind.
Zane
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