Diana Diana 34 EMS Gas Piston Installation

This morning I pulled the spring out of my Diana 34 EMS and installed the gas piston/ram/spring (you choose).

The spring came out with very little preload but the piston was a bit of a challenge.

Where I don't have a spring compressor, I used a 5/4" plank and cammed into place in using the edge of my bench overhang and my body weight pressing on the vertical barreled action.

Once I figured it out it worked pretty slick and I didn't have to remove the barrel. All that considering the instructions were only in German!

Once back together I ran outside to give it a whirl and it's running much smoother, maybe a bit louder and super accurate.

I'll get some chronograph data together soon but it's really liking the JSB 10.34 pellets.

I've attached some pics for your viewing pleasure.

More to follow, as they used to say don't touch that dial!
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Good morning,

The cocking effort seems maybe a bit more stout than the spring but it's entirely manageable and you can still cock it without the break barrel springer barrel slap.

Please note that should you choose to take on this project I would highly recommend that you have a spring compressor. The spring comes out with minimal preload but the gas spring is extremely stout.

Bullseyesouth.com can get you the Diana 34 EMS parts. They typically don't sell parts only those for the EMS.

Oh yeah, it just devours NECO wafer candies at 30 yards!
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