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PostPosted: Fri Aug 31, 2018 12:32 pm 
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Joined: Fri Jul 27, 2018 10:34 pm
Posts: 284
Location: Bowmanville, Ontario
Send me a drawing, I'll make a new one 8)

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Fully rebuilt Benjamin .22 classic
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PostPosted: Sun Sep 02, 2018 4:01 am 
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Location: Eastern Townships, P.Q.
Hey nice work MyCrosman :) I didn't catch it if you mentionned it, but did you mod the trigger?

leadslinger wrote:
I bought Diana 240C thinking it would be better than a crosman. But the crude spring and cheap spring guide, I dunno if there any tuning I can do to make it softer. Unless I build a new spring guide.


I have a 240C too, and gave it a thorough tune. New fitted nylon spring guide with thrust washer and top hat, new seal, ground and squared main spring, trigger work, de-burred and polished, moly lubed and some other mods. It feels much smoother on the cocking and firing cycle, but it's still a bit ''rude''. Mine is the NON-T05 trigger. These are marked ''Made in Germany'', but I found out they have the same exact main specifications as a Ruger Explorer air rifle. Internal parts are identical and interchangeable, I know because I checked, I have an Explorer rifle. Same Made in China ''fragrance'' from both rifles...

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PostPosted: Sun Sep 02, 2018 8:48 pm 
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Joined: Sat Jan 25, 2014 9:16 pm
Posts: 1271
Location: United States
leadslinger: Did you make a plastic piston liner? Attached is a pix of a Diana 350 which has a steel liner that helps, but adding a plastic one as well makes a huge diff. This 350 also has a plastic guide, which I assume is nylon but who knows. I was thinking maybe you could make a better one, or mod yours. Or maybe if the 34 model has the same dimensions you could buy a plastic guide for a Ruger or other misc B25 since I assume the B25 part would be much easier and cheaper to get.
With the existing guide, which I'm assuming is steel, you could line the inside with plastic or silicone to dampen sound. Unless you have room on the outside to add a layer of plastic? Or find some tubing w/ a smaller OD so you can add a layer of plastic...


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PostPosted: Mon Sep 03, 2018 8:04 am 
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Joined: Mon Aug 08, 2016 7:23 am
Posts: 2772
Location: Somewheres near the Atlantic
Chevota wrote:
leadslinger: Did you make a plastic piston liner? Attached is a pix of a Diana 350 which has a steel liner that helps, but adding a plastic one as well makes a huge diff. This 350 also has a plastic guide, which I assume is nylon but who knows. I was thinking maybe you could make a better one, or mod yours. Or maybe if the 34 model has the same dimensions you could buy a plastic guide for a Ruger or other misc B25 since I assume the B25 part would be much easier and cheaper to get.
With the existing guide, which I'm assuming is steel, you could line the inside with plastic or silicone to dampen sound. Unless you have room on the outside to add a layer of plastic? Or find some tubing w/ a smaller OD so you can add a layer of plastic...


Sound isn't the issue. Plastic liner is going to fix these issues. Its the spring that not squared, the crude spring guide. For a 250+ $ airgun it's def lower quality then a crosman.


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PostPosted: Mon Sep 03, 2018 8:20 am 
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Location: Bowmanville, Ontario
Carpenter84 wrote:
Send me a drawing, I'll make a new one 8)

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Fully rebuilt Benjamin .22 classic
Some other junk rifles


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