Drop in piston upgrade for c362

[Spooner]

I think the problem is the predecessors that used the same pump rod. The 766, 2100 and 2200 were not easily flat topped due to the valve design. Drilling and tapping the OEM piston sounds like the best option.

Only two people here that I know of did one. Back Roads did what you described, and Tack Driver 10 did an amazing custom one. I just find it interesting that no aftermarket interest developed is all. 

[Spacebus]

I think the problem is the predecessors that used the same pump rod. The 766, 2100 and 2200 were not easily flat topped due to the valve design. Drilling and tapping the OEM piston sounds like the best option.

Only two people here that I know of did one. Back Roads did what you described, and Tack Driver 10 did an amazing custom one. I just find it interesting that no aftermarket interest developed is all. 

Maybe the 362 is not selling well enough to justify the investment

[Van]

I am a bit surprised that by this point someone hasn't offered an adjustable FTP setup. With the new wood versions coming out, and interest still there for this platform, I would have thought folks like Alchemy Airwerks, Alliance Hobby, or Mellon would have taken some interest it?

  I believe I read the 362 valve is the same as a 13XX if so a 13XX Mountanin Airgun flat top piston ($25) can be easily modified to make a longer rod just by substituting a longer 1/4x20 threaded rod for the short one.  You would need the flat top valve ($25) or grind yours flat.  I used these in a few builds with a 2200 tube and 13XX flat top valve.  Here is one of my pistons extended this way and the original Mt Air piston/valve screen shot.   If I ever get around to getting a 362 it's what I would try. I used stainless steel threaded rod and nuts.   

[Back_Roads]

 Much easier than the cut drill and tap the OE pump to accept a Mellon FT setup, that I did, IIR parts were hard to find at the time, and perhaps I did not think of Mountain Air

[Spooner]

That is a great idea Van!  Thank you for sharing that. 

[MI Yeti]

I am a bit surprised that by this point someone hasn't offered an adjustable FTP setup. With the new wood versions coming out, and interest still there for this platform, I would have thought folks like Alchemy Airwerks, Alliance Hobby, or Mellon would have taken some interest it?

  I believe I read the 362 valve is the same as a 13XX if so a 13XX Mountanin Airgun flat top piston ($25) can be easily modified to make a longer rod just by substituting a longer 1/4x20 threaded rod for the short one.  You would need the flat top valve ($25) or grind yours flat.  I used these in a few builds with a 2200 tube and 13XX flat top valve.  Here is one of my pistons extended this way and the original Mt Air piston/valve screen shot.   If I ever get around to getting a 362 it's what I would try. I used stainless steel threaded rod and nuts.   

Great idea. I will keep this setup in mind when I finally get around to buying a c362. Been working on getting my other crosmans project completed. (are they really ever done? lol)

[2K1TJ]

I am a bit surprised that by this point someone hasn't offered an adjustable FTP setup. With the new wood versions coming out, and interest still there for this platform, I would have thought folks like Alchemy Airwerks, Alliance Hobby, or Mellon would have taken some interest it?

  I believe I read the 362 valve is the same as a 13XX if so a 13XX Mountanin Airgun flat top piston ($25) can be easily modified to make a longer rod just by substituting a longer 1/4x20 threaded rod for the short one.  You would need the flat top valve ($25) or grind yours flat.  I used these in a few builds with a 2200 tube and 13XX flat top valve.  Here is one of my pistons extended this way and the original Mt Air piston/valve screen shot.   If I ever get around to getting a 362 it's what I would try. I used stainless steel threaded rod and nuts.   

That's what I did, except my piston didn't come from Mountain Air. It was one I got from a member on here a while back. Not sure if the maker.

[Spacebus]

I'll check out the mountain air parts. I think I'm capable of cutting and fitting the threaded rod.

[Spacebus]

Does anyone know the exact dimensions for the threaded rod to use the Mt. Air piston in a 362?

Would the 13xx series pump arm pin from Mt. Air be an upgrade for a 362?

The parts from Mt. Air seem like a fairly cost effective option for an upgrade for all the parts that have to come out to address my valve leak.

[Tack Driver 10]

This is an older thread but here's my 362 adjustable FT piston.
Modified the original 362 piston, can be either a FT or cone type.
As the saying goes......2 heads are better than one....LOL

[Spooner]

I remember this  . It was a very clever solution with the option to go either way with adjustability for either type. Very nice! 

[Tack Driver 10]

I remember this  . It was a very clever solution with the option to go either way with adjustability for either type. Very nice! 

It would probably been just as easy to make a separate FT piston head.
But this was a trick option I wanted to make.

Alliance hobby has an adjustable FT piston for the 362 reasonably priced at $59 shipped.

[Spooner]

Dang... he went all out with the options ! 

Very reasonable with his price. That middle one looks like a 13xx piston in brass. 

Yours with the interchangeable top let's you switch without having to have a second lower body. 

[Mike71]

I'm really wanting one but afraid to order from Alliance Hobby now I've heard bad things about him.

[JimT66]

   Have you oiled it to see if it would come back to life ?

Yes, but maybe I should try some "secret sauce" instead of silicone oil.

What is this "Secret Sauce"? I have a 1960 Blue streak, and I would like to try to to see how it performs after trying a little of that in it... Before I have to have it rebuilt. Thanks!

[Mike71]

Wouldn't ATF be a good idea ? Doesn't harm rubber o-rings, high pressure, and I know it's good on AR-15s.. different types of o-rings out there so I don't know.

[Blowpipe Sam]

“Secret sauce” is Mac1’s proprietary blend of oil for use in pumpers and co2 guns.  It’s good stuff.

ATF is popular with a lot of airgunners and it’s another good choice for pumpers and gassers.

I used to run Lucas synthetic air tool oil but I can’t find it anymore.  Now I use Marvel air tool oil.  It’s not synthetic but it’s safe to use with Buna and synthetic rubber o-rings.

[Mike71]

Yeah after alot of reading I've come to the same conclusion as I did for the AR-15, just use motor oil on everything except inside of a AR-15 gas system or springer piston chamber.
Mix in a small amount of grease to make it a bit thicker when needed.

Tried MOLY powder mixed with alcohol for a dry lube, mixed a dab in oil or grease, went back to just oil and grease.

Would like to find something that had lots of slickness to it.

[RBQChicken]

Yeah after alot of reading I've come to the same conclusion as I did for the AR-15, just use motor oil on everything except inside of a AR-15 gas system or springer piston chamber.
Mix in a small amount of grease to make it a bit thicker when needed.

Tried MOLY powder mixed with alcohol for a dry lube, mixed a dab in oil or grease, went back to just oil and grease.

Would like to find something that had lots of slickness to it.

Not just any motor oil. Be sure it's Non-detergent motor oil.

[Mike71]

This is an older thread but here's my 362 adjustable FT piston.
Modified the original 362 piston, can be either a FT or cone type.
As the saying goes......2 heads are better than one....LOL

I'll most likely get a kit for the 1322 and mod it to work. But dang it's like $100 on Ebay for just the piston that looks almost identical to that one.

https://www.ebay.com/itm/226505778167?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=QahDb54DSi-&sssrc=4429486&ssuid=j2mz6nWtQTW&var=&widget_ver=artemis&media=COPY