Crosman 338

[Craigl]

I can’t get my 338 to seal after putting in all new seals from Henry Ford. This is the only air gun where I’ve had this problem. Anyone have any suggestions?

[SpringerGuy]

Hey Craig
,

I disassembled and re-assembled a crosman 150 ten times before I got it to seal.  Good Luck .

Randy

[78gCollector]

I can’t get my 338 to seal after putting in all new seals from Henry Ford. This is the only air gun where I’ve had this problem. Anyone have any suggestions?

I recently resealed both a 338 and Z77, and had some issues with CO2 escaping at the face seal on both of them.  (The Z77 is just a 338 hidden in a plastic Uzi shell.)  The seal kits I used did not come with a piercing pin so I reused the old ones, and I think that's the issue.  I plan to pull the guns back apart and replace them with T4-041s.

[brewbear]

Hey Craig
,

I disassembled and re-assembled a crosman 150 ten times before I got it to seal.  Good Luck .

Randy

Hey Randy, I use these seal kits for my Cr. 150's, they work perfectly. I have more than 10 Cr 150s and re-sealed all of them. The seal kits from other vendors (had some of those) do not seal perfecly unless you heat the gun/rifle so the rings soften up a bit.

[SpringerGuy]

I should said valve stem was bent and sticking. Not a seal leak. Thks