How do I I replace the worm wheel on my Bell & Howell 644 16mm projector??
It appears it would make it easier to get at if I first removed the flywheel. Is this the case and if so, how does one remove the flywheel? I have removed the film drum and the circlip in the shaft but, although this is now loosened, there is still an obstruction preventing the shaft and flywheel from being withdrawn.
Paul Sproxton, April 2008
