Thanks Dave...I noticed that you mentioned the abutment seal in a separate post advising another first variant 760 owner. I will definitely add that to my list of to-do's once I eventually reassemble. And I'm hoping to be able to post photos soon.While we're at at, any advice regarding whether to purchase directly via Crosman, vs buying a kit containing the required seals? I've seen some conflicting advice kicked back and forth related to this. In fact I'm yet to contact Crosman directly to see if the parts they carry can even be used in this old gun...another item on the to-do list.
That is the same way I got started in this hobby, only mine is a 2nd variant 766. I got it back together and shooting a few years ago. Lots of fun and memories. When restoring, don't forget the Crosman website, you can still find parts even though your model might not match up to the current model, many parts are still the same, just cross reference the item numbers.For example, I could not get my brass valve apart for the life of me. Eventually, I mangled the inlet cone resorting to using waterpump pliers. It came apart, and would shoot after re-assembly. I eventually wanted to fix it better, so I ordered just the front end of the valve from crosman. The valve is now aluminum, but the front side of it is the same geometry as the old. The back side is different, but I didn't need that anyway. I know it's a different airgun than yours altogether, I'm just saying that with a little homework the Crosman Customer Service site is a great resource!Good luck and welcome to the addiction hobby.
OK, it took careful cleaning/application of some WD-40 and some magnification, but I'm finally able to confirm that the two digits at the front of the pump tube plug/barrel band are "6 9".From your key to this stamp, and being able to rule out 1959 (and for certain any date after say 1972), I can then conclude that this corresponds to a date of June, 1969? If so, that would fall right within the time frame that I would have guessed based on memory. And can we also unambiguously determine the exact 760 variant based on this date?Inquiry minds (im)patiently await the answer... ;-)
June of 1969 would make it a first variant, and don't be too concerned about the lack of grooves on the pump handle, as there were variants of variants. I've seen one with a pump handle like yours before, and I thought that it must have been a user modification, but after seeing yours I think that there must have been some first variants produced with that handle.
Valve front 417-034, check valve 760-147, pump assy 1322D020 , 130-034 and -035 O-Rings, 140-058 O-ring, and a 130-036 T-port seal. The 008 Quad ring is usually available at a good truck or hydraulic shop.