OK Lawrence, those pics answered my questions and put my heart at ease as far as what they look like - the little picture from the CL ad is fading fast in my memory, and wasn't the best picture in the first place! I should be able to find a clutch cover for you at my friend's shop.
So, what's the problem with the recoil anyway? Is it an old Fairbanks-Morse recoil? If so, there's usually an "FM" logo molded into the recoil cover in the little center circle part on the old Pioneers - many were made with either the FM starter or Pioneer's own design. The FM would be a plus, since they're not too difficult to work on and parts are all over the place for them.
You looking for a top cover too? I'm pretty sure my friend has one - he has probably the better part of a dozen 600-series saws on his shelf that are more or less complete. Said he wore them all out back in the early '60s bucking to length on landings for one of the local logging outfits. Not too many guys come to him looking for parts from those old buggers anymore (probably just me...), so there they sit. He doesn't really want to get rid of them altogether though since they've been his for almost half a century. I might be able to coax a cover off of him though. I know a lot of his are the brown ones, more common on the 620s, but I think he might have one or two greens as well.
