Friday, July 18, 2014
But the pump cup snaps in! Some chatter marks. I’m not perfect. Parting to length. I placed the old metal cup in the picture to show that the new part isn’t that much longer.
Getting it to run true. Drilling. I didn’t want to break through into the cup chamber.
Tapping 1/4”-28 tpi. Definitely enough threads. Done. Came out well in my opinion. Next comes cleaning all the mechanical bits and reassembling, which is straightforward (I hope). Then some quick stock refinishing.
Thursday, July 17, 2014
So now I need to make the cup adapter, clean all the parts and refinish the stock. Should take a while.
On I go…Two roll pins removed. Nice square rubber bumper in the forearm slot. Odd dings on the pump lever. Note the flat spring down in the slot.Formed bushing. It’s always risky when pushing the roll pins out of the forearm, especially when they have complex grain as this one did. countersinking the hole edge can help, but it’s no guarantee. In this case it popped a small chip out. Not a disaster, it will be barely noticeable when glued back in and refinished. A small piece of rubber behind the square bumper… I just find it interesting. An afterthought at the factory or did a previous owner jam a scrap of rubber into the forearm? The linkage is color case hardened. Cam plate and screws. One screw has started to strip. The bolt, notice the lack of an o-ring groove. It uses a metal-to-metal conical seal, like the old Crosmans. Pump rod & cup. It was oiled by the previous owner, but did not respond, being hard as a rock. An adjustable rod at both ends, unlike the current pump rod. Digging out the old pump cup. A pile of rubber. I believe the old cups were molded in the part, not separate. A new pump cup does not fit the old part. Will have to make an adapter. The end cap is held by screws. Three screws, one under the sear/trigger. Detail of the safety.Somewhat interesting.
More to come…