All,
I received a replacement HB22 after a quality issue with the first order. The replacement appears to have a non brass piston. The serial number beginning with 2 has a brass piston part 397-025 can be seen here http://www.crosman.com/pdf/manuals/BHB17A-EVP%20&%20PL.pdf. (http://www.crosman.com/pdf/manuals/BHB17A-EVP%20&%20PL.pdf.) The new one I received has a serial number of 1 and the piston is silver. The piece is a circular dohnut that exits the pump barrel the near the air hole when the pump arm is fully extended.
Which one is on your BH22? What does your serial number start with? Whole thing if your willing. Which would you prefer, Brass or the silver looking one?
As always, thank you for your response. Thank you extra if you took the time to check your HB22. I know it's a pain in the ass, but you'd be helping me out.
V/r,
Chris
Don't have a HB22 but I am betting that the silver looking piston is aluminum.
Carl
So if it's aluminum, should I keep the one with the brass?
Without going into the issues I have had with my EB22, I have ended up with two valves (its the co2 version of your HB22).
One valve being aluminum and the other is brass like yours (but different! ;) ).
Assuming they both work then I suppose the biggest difference is weight.
Technical differences aside, I'm not sure if it matters. ???
If they're both brand new and work then personal preference.
Its interesting you have had a similar part difference like I did. :-*
I called Crosman and the support staff said based on the serial numbers they were only 1 month apart. She said the serial number beginning with 2 was newer, and this one has the brass piston. They stated that the build out is always based on parts availability. In my opinion this standard or lack there of sucks!
Funny, I thought the brass one was older - only because I was thinking aluminum is more space aged! ;D
So if you have both pistons? You could try them both out and see if there is any difference in performance or feel.
This is something I intend to do with mine when I get both valves working that is!