Monday, October 12, 2009

Roger Mondial Pistol, Finishing Up

So let's see if I can get it to work...

A bit of scotchbrite pad stuck into a split dowel...

Polished up the valve seat.

The old seal was removed. Note the location of the slot, it's important.

Some urethane was machined...just as with all my other seal projects.

I trimmed the seal the the face of the valve cup. This was an error.

I made a rubber washer for the CO2 piercing cup.

Looks ok...

If you've ever worked on CO2 guns you know what this is...a frosty CO2 I had to slip a shim under the piercing seal to raise it slightly...then it did seal against the cartridge. Yay!
But then with a new cart it dumped all the gas through the barrel...Boo!

Here you can see the valve with the hammer resting against the lever.

But with the hammer weight taken off you can see the valve sticks out way further than it could seal. So I had to make a new seal. The key was for the seal to extend to that slot in the valve stem. Sorry I didn't take pics, I was in a bit of a frenzy...
Anyway, with the new seal length it sealed up fine! A fun little pistol even though you have to tilt the pistol back every shot to feed a new bb into the feed mechanism. So it isn't rapid fire and you lose your sight picture.


Unknown said...

I am looking to replace the seals in my ROGER mondial. Have you found a vendor or do you have measurements for replacing the seals?

Felice Luftschein said...

No source and I didn't make any drawings. Just measure the housings and make to suit.