Anyone have the oring sizes for Crosman 150/157, 112, 160, 180?
How about the S&W 78G & 79G?
Had this info in a computer that died.
I realize some seals, like the Crosman seal around the piercing pin at the valve / powerlet union in a 2240 / 2250 / 2260 is a factory part, as well as the seal on the valve stem.
FWIW I found seal info for the Crosman MKI & MKII:
"I’m not promoting the use of substandard seals but these standard o-ring sizes are what I found to fit and function in the Mark pistols, at least temporarily.
- Bolt seal (Mk1) = ¼”OD x 1/8”ID x 1/16” thick
- Valve body seal = 5/8”OD x ½”ID x 1/16” thick
- Piercing pin seal = ¼”OD x 1/8”ID x 1/16” thick
A quick email to Tim at Mac-1 resulted in the correct o-ring sizes for the Mark pistol seals. Tim recommends mil spec 90 durometer urethane seals for all applications, although a softer seal will work on the bolt.
- Bolt seal (Mk1) = 006 softer seal (005 with hard seal)
- Bolt seal (Mk2) = 004 softer seal (003 with hard seal)
- Valve body seal = 014
- Piercing pin seal = 005
- Piercing body seal = 113"
How about the S&W 78G & 79G?
Had this info in a computer that died.
I realize some seals, like the Crosman seal around the piercing pin at the valve / powerlet union in a 2240 / 2250 / 2260 is a factory part, as well as the seal on the valve stem.
FWIW I found seal info for the Crosman MKI & MKII:
"I’m not promoting the use of substandard seals but these standard o-ring sizes are what I found to fit and function in the Mark pistols, at least temporarily.
- Bolt seal (Mk1) = ¼”OD x 1/8”ID x 1/16” thick
- Valve body seal = 5/8”OD x ½”ID x 1/16” thick
- Piercing pin seal = ¼”OD x 1/8”ID x 1/16” thick
A quick email to Tim at Mac-1 resulted in the correct o-ring sizes for the Mark pistol seals. Tim recommends mil spec 90 durometer urethane seals for all applications, although a softer seal will work on the bolt.
- Bolt seal (Mk1) = 006 softer seal (005 with hard seal)
- Bolt seal (Mk2) = 004 softer seal (003 with hard seal)
- Valve body seal = 014
- Piercing pin seal = 005
- Piercing body seal = 113"