Think I found a use for an old R9 piston sleeve in a new style......

[nced]

sleeveless piston. When I forst got my latest .177 R9, just for grinns I installed an old piston liner just to see if the new style cocking shoe that slides on the receiver tube would function properly. Here is a pic showing a liner in the piston and cocking shoe in place...........

After shooting a few shots to verify the function I disassembled the R9, removed the piston liner and have been using the gun "linerless" since.

Well.....since I replaced the previous broken aftermarket spring with another from the parts bin I've noticed that cocking the gun would be real quiet for a while, then I would get a sort of light clicking sound when cocking for a while, then the sound would go away for a while only to return. I've been shooting the gun for quite a bit in the "light clicking mode" so I decided to tear the gun apart and see if perhaps the underside of the cocking shoe was contacting the spring coils as they were being compressed. LOL....this Saturday there will be the last THAGC field target match in Mt Pleasant, NC so what better time to tear a gun apart?? Dohhh!!!

Anywhoo......reassembled the R9 with a piston liner in place and guess what......no more "light clicking sound" when cocking! It does indeed seem that the old spring I'm using had a slight cant to the coils and when the spring rotated "cant toward the shoe" I got the "light clicks", but when the spring rotated with use so the cant was away from the shoe the "light clicking sound" went away only to return when the spring rotated again with use.

I don't think the "light clicking sound" affected the performance any, but since it was annoying I'll leave the sleeve in place from now on.

[Hanabata808]

That's some good troubleshooting you did there

[palonej]

That would drive me nuts Ed!! Nice diagnosis!! Great job!!
Good luck on Saturday!!

[vernongt]

On the subject of pistons, sleeves and R9 rifles, does anyone have an opinion about installing a Gas Piston in an R9 or R10 spring Piston air rifle?

If you have an opinion I'd love to hear it.

Using the R10-177 as a hunting rifle, I don't like leaving the spring cocked for periods longer than 10 minutes or less, and wondered if, by replacing the main spring with a gas piston [if anyone has such a thing for a Beeman] I'd like to hear about it.

That way I can leave the rifle cocked for long enough to wait for the small game/critter/varmint to come along.
As it is, we need to have the rifle loaded but not cocked until Sammy Squirrel comes along, then when I cock the rifle, it scares Sammy away!!!

Whatsya thoughts on this?

[nced]

On the subject of pistons, sleeves and R9 rifles, does anyone have an opinion about installing a Gas Piston in an R9 or R10 spring Piston air rifle?

If you have an opinion I'd love to hear it.

Using the R10-177 as a hunting rifle, I don't like leaving the spring cocked for periods longer than 10 minutes or less, and wondered if, by replacing the main spring with a gas piston [if anyone has such a thing for a Beeman] I'd like to hear about it.

That way I can leave the rifle cocked for long enough to wait for the small game/critter/varmint to come along.
As it is, we need to have the rifle loaded but not cocked until Sammy Squirrel comes along, then when I cock the rifle, it scares Sammy away!!!

Whatsya thoughts on this?

First of all.....I personally don't like gas springs and see no point in getting less performance for equivalent velocity which is what you get with rammers. Plus, NORMALLY a gas ram can't be owner repaired if the gas charge is lost, plus coupled with the fact that a R9 spring can be replaced in about 15 minutes for about $20 I simply have no interest in them.

Now for the mechanical difficulties of "ramming" a R9. The R9 piston has an internal latch rod making it extremely difficult to create a functioning ram. The "rammers" I'm familiar with have a piston latch on the side of the piston rather than using a central latch rod so it's doable.

Here's a pic of a HW77 piston that I oring sealed showing the centralized latch rod..........


I'm really not very "rammer savvy" so if there are those "more in the know" please speak up!