Canadian Airgun Forum

XS60C end cap fix
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Author:  airmec [ Sat Aug 13, 2016 8:11 am ]
Post subject:  XS60C end cap fix

I recently bought a brand new Xisico XS60C CO2 air rifle from Scopes and Ammo (thanks Eric!), but before being even able to try it, I had to repair the leaking end cap.

First off, I knew there was swelling and durability issues with the stock orange main O-ring, so I changed it over for a QB white one, it's a direct fit. Tried it with a cart, still leaking. Then I took the cap apart to see what was up with the de-gassing check valve. The check valve seal and check valve itself were problematic. The sealing surface of the seal had a big nick in it, and the seal couldn't fit well in a too narrow groove in the check valve, so it was crooked, and the check valve was a poor example of machining work. Soooo, I sanded the seal with #400 and then #600 wet or dry sand paper, and fabricated a new check valve on the lathe,re-installed the sanded seal, re-assembled the cap and tried it with a new cartridge (one spent, one full). NO LEAKS!!! :D

I haven't had the opportunity to shoot the rifle much yet, if I run into any other issues, I'll report back 8)

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Author:  ITGUY [ Sat Aug 13, 2016 4:58 pm ]
Post subject:  Re: XS60C end cap fix

I got the same rifle from him about a month or so back.

From research I knew they had problems with the end cap, but surprisingly, after I contacted him, he explained it was poor machining on the end cap (that was corrected long ago he said).

I've got the same red O-Ring and have 8 carts through it so far with no problems. I did read that they swell up quite a bit, and if you attempt to remove the end cap before they return to size they will tear.

Mine came with a light coating of grease on the first inch or so of the reservoir tube.

Luckily my degassing assembly works fine, although you have to unscrew it almost all the way out to have it close properly.

There are aftermarket caps you can buy as well (bulk fill capable or just plain cap).

EDIT: Speeling

Author:  Dukemeister [ Sat Aug 13, 2016 5:37 pm ]
Post subject:  Re: XS60C end cap fix

I'm surprised your rifle had a leak - and concerned that the fix required more than a polish and a seal. S&A actually says on the website for the XS60 "We have tested all of these rifle to ensure no leaks and proper shooting operation."
I may eventually get one for myself, maybe over the winter when boredom sets in.

Author:  airmec [ Sun Aug 14, 2016 9:10 am ]
Post subject:  Re: XS60C end cap fix

Just saw that the bolt O-ring is torn. Think a good tune is in order 8) .

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