I picked up this rusty Crosman V-350 BB gun a while back. It functions but is in rough shape.
The barrel is extremely rusty.
Two screws fore and aft remove the stock from the action.
Hmmm, a ball bearing. Crosman doesn’t have an exploded diagram or manual on their site but there are instructions here in the Crosman Service manual. (Very handy PDF!)
Another shot of the ball bearing and spring.
A band clamp is used as the front stock mount.
Knurled nut retains the barrel. It is called the "Tube Bearing" as the barrel slides into it.
A post (locating stud) for the rear stock screw also retains the spring. This is a spring piston gun, although a somewhat unusual one.
Another shot.
I think the rear sight is misaligned.Again you can see the rust.
Put it in the spring compressor.
Knocked the pin out.
Spring and cap. (Tube Plug and Stop Assembly).
The piston assembly, spring and cap.
Teflon seal.
It appears to be one part, unlike the drawing in the service manual.
Unscrewed the barrel retaining nut/bearing.
Unscrewing the hollow screw that guides the barrel.
The hollow guide screw.
A small ball bearing and spring are revealed in another hole when the barrel is rotated 90 degrees.
A spacer sleeve around the barrel.
The seal for the barrel. "Barrel cap".
Barrel sleeve/bearing and spacer and barrel.
The seal assembly has a pop valve.I’m nut sure why it’s so complex and to be frank I don’t think I will understand the entire mechanism until I have cleaned it all up and reassembled it.
The barrel cap is a somewhat complex part.
Inside. More to come…
Wednesday, July 27, 2011
Crosman V-350 BB Gun Disassembly, Part 1
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14 comments:
Exactly what I was looking for, THANK YOU very much
Exactly what I've been looking for as well. I have the M1 version which is about to get a new seal kit and cleaning. It shoots with very low power.
but I have a question if I may? The round drum assembly which houses the rubber o-ring and pop valve has three small holes which I'm assuming is where the air pressure is regulated expelling the bb. My question is, do you think boring those three holes to a slightly larger diameter with result in a more powerful discharge?
Just to put it out there...I would NEVER try this at home and my question is strictly for reason of curiosity.
Thank you,
Steven Calvaruso
stevencal64@aol.com
How does the barrel cap come off the barrel???
I TRIED TO OPEN THE REPAIR PDF ON THIS PAGE, IN SO DOING I WAS ASKED FOR USER ID AND PASSWORD. NOW WHAT?
Looks like they now require a $12.00 subscription to download manuals. Bummer.
Where can I find/buy parts?
I need the ball spring and ball. Part # V350- 41 and 42. I still have the ball.
The BB rolls out of the barrel with out the spring and ball.
The gun is in perfect condition, as I purchased it new in 1962. The blueing is warm off of the barrel due to a lot of use, but the felt is still soft and the seals are tight. No rust...
Any help will be greatly appreciated.
https://support.crosman.com/hc/en-us/articles/203361574-V350-Owner-s-Manual-EVP-1962-1969-
This is awesome. Anyone got dimensions on the bb retaining spring and ball bearing?
Can this be disassembled without a spring compressor?
I have a V-350 I got for Christmas in 1962. It still operates, after I replaced the O ring on the pop off piston. Is there a rebuild kit available anywhere? I've looked, but can't locate one. You don't need a spring compressor, I disassemble by hand.
Yes you can
Does the back pin come out up through the top or down through the bottom? Mine is quite stubborn...
Down through the bottom I believe, but it may not matter.
Nick
Can you tell me the spring diameter and length?
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