Very cool that everything inside looks so good! Looks like the outside, little used or well cared for gun. I’m no expert having resealed only one gun but it was a 1949 101 with the same pump cup. I remember having the same issue. As I remember I had to cut off the old pump cup so that round nut was totally exposed. Wrapped leather around it and used my long grippers and it finally broke free. I’m pretty sure it was not lock-tighted? I don’t remember heating it but I have a micro torch I use for this and I could have, but doubt it.
If I were you I would reseal the gun and see if you really need to change it? It looks pretty good? But your there and can examine it better, it may be rock hard? I really think mine is still working with the old seals, but that may not be true? Can’t wait to see the numbers you get when this is resealed. Should really represent what a 107 was capable of.
Inside you see the advantage of the Crosman design of this era, well built, simple, and easy to reseal.
Last edited by 45flint; 14-12-2018 at 10:40 AM.
Thank you for the advice. You're right, I should have left the pump cup and tried it after resealing the rest.
But yesterday evening I was in this disassembly mode, and that can be a dangerous thing: I then really want to solve each problem asap, and this sometimes leads to hasty decisions.
I cut off the old pump cup and then tried to unscrew the brass nut, using not leather but thick cloth - no movement, and some minor grip marks. Damn. I used a diamond file to repair the light grip marks, and it's all good now. But still this nut won't move! I will try using a piece of leather tonight. A new pump cup will indeed mean that I can experience the best possible functioning of this 107.
I could have used my micro torch, it’s a fine flame where I could just touch the nut. I’ve done this before and it worked well, just can’t remember it I did it here? Very well could have, cause I remember having the exact same issues. Even wondering if it was a solid piece!
Last edited by 45flint; 14-12-2018 at 11:14 AM.
the retainer is a press fit on the rifle types of this pump cup and is universal to all the 50's onward pumpers
I replace the entire head with an o ring type and put the original in a box with others so that I can put back to original but tbh most of the seals on the ones I have are shot
I have in the past made a conversion that screws onto the original but you need to machine the original
what I would do is once the parachute seal is removed is try drilling the centre to the ally and try punch it off
Thanks ped. That sounds like I've got myself into some trouble by cutting off the cup. If only I had just followed my gf's advice to come to bed earlier haha. Always listen to the lady...
Do you mean that I could drill a hole in the side of the brass retaining nut, and then insert a metal rod, in order to have something to punch on, in order to take the nut off?
I could also try some collets and mole grips, but I would have to make collets. Hmmm, this resealing is going to take a bit more time than anticipated, but I'll get there...
I have a 1949 101, Kringle paint, Town & Country sight, so no doubt what year and my round nut screwed off, absolutely no question about it? Mine was totally brass, can’t tell if yours is aluminum? If it’s brass apply a little heat to the end of the nut, I know this is what I would have done if I couldn’t move it.
Last edited by 45flint; 14-12-2018 at 12:17 PM.