Diana 350 cocking arm dragging/galling

[Ike the GSD]

Yeah, my 2015 D350 has a two-part cocking arm just like my Xisico clone barrel had, and it wouldn't work any other way. The D34 has a single-piece cocking arm, which makes dismantling the 350's smaller, older brother a special kind of chore.

I'm learning to hate this rifle more every day, I can't even get a factory mainspring for it, it's as if the rifle has been long discontinued😬🤷‍♂️

Vortek can sort you out with a drop in OEM equivalent spring if you want to go that route... If ordering a custom spring from them, I recommend the .128" wire with .825" OD. I forget the coil count needed to be honest. I'd compare coil count to original if available.

You can use a .135" wire .825 OD vortek custom spring with the factory guide, but 35 coils would be a bit too strong. My D350 in .177 was making nearly 23FPE with that spring, I recommend 33 or 32 coils and maybe spacing up if needed if going this route.

The original spring has 40 coils I bought a replacement from Tom earlier this year but he's since quit offering them and the kits, the custom spring max length is 36 coils in the .128/.825 configuration. The .135 wire spring would get closer to factory specs, I can cut coils if I have to, if I ordered the 36 coil .128 spring he offers now I'd just have him close the ends and leave it alone.

I was mistaken about the .135 spring I used... Apparently I ordered a 38 coil spring, which was a bit too strong. Apologies for having a foggy memory. Here's a link to the thread regarding my experience, reply #6 is what I ordered (pg3 kit and also a .135 spring)...

https://www.gatewaytoairguns.org/GTA/index.php?topic=187575.msg156156921#msg156156921

I just wish I could get factory parts for it, neither of the springs offered by Vortek or the one offered by ARH are exactly like the factory spring🤷‍♂️ I'm just worried Diana is going out of business or transitioning to another country, a salesman at Pyramid Air said they can't get the guns at all,  most of the models are unavailable, AoA hasn't had any Diana rifles save the EMS 34 in going on a year!  I'm seriously considering selling this rifle for parts and be done with it!

[mpbby]

I would talk to Chambers, about orders and backorders ..

https://twchambers.co.uk/

[splitbeing]

Although ARH doesn't sell the factory spring, ARH does sell springs that work in the 460 platform. I had had a GRT spring in there but now have a 12/13 fpe GSX kit with a custom spacer. I talked with JM about the specs I was going for and he made it happen.

[Ike the GSD]

I would talk to Chambers, about orders and backorders ..

https://twchambers.co.uk/

Marcos they have mainsprings but they're the UK compliant variety and the fella at Chambers said they can't export the full power springs, I found that odd when in the same email he recommended a Titan #14 spring ? I sent another email asking about this and they never replied?

[Ike the GSD]

Although ARH doesn't sell the factory spring, ARH does sell springs that work in the 460 platform. I had had a GRT spring in there but now have a 12/13 fpe GSX kit with a custom spacer. I talked with JM about the specs I was going for and he made it happen.

Yeah but the 460 springs aren't as powerful as the ones for the 350?

[splitbeing]

Not sure having never owned or been inside a 350. I do know my 48s and 460s had the same stock springs. The power differences between the models were not due to spring differences.

[Ike the GSD]

Not sure having never owned or been inside a 350. I do know my 48s and 460s had the same stock springs. The power differences between the models were not due to spring differences.

Yeah a factory Diana 350 spring has 40 coils I think the 460 springs have 36 coils or something like that.

[Denby95]

I would just add that I have a D460, bought the GRT spring that was advertised as OEM FAC spec and my D460 dropped from 22-23 ft lbs to 17 ft lbs. So I wasn't happy with it.

[Ike the GSD]

I would just add that I have a D460, bought the GRT spring that was advertised as OEM FAC spec and my D460 dropped from 22-23 ft lbs to 17 ft lbs. So I wasn't happy with it.

I bought a GRT spring for my model 34 early last month and it went from 14 ft lbs to under 12 ft lbs in less than three tins of pellets, when I approched this person about what happened I received some of the poorest customer service I've ever experienced, the response to my email was filled with excuses and blame regarding how I installed the spring aka ( the rifle was dieseling initially) when all I did was take my old spring out and install the ARH spring, then he went on to say the spring was meant for the kit when it clearly states on his website the spring is a drop in for the 34, then he said (from just viewing a picture of the spring I sent him) that my (guides) weren't fit properly, the picture I sent was of his spring next to a Vortek spring with the same number of shots through it showing the ARH spring had shortened by 2" He then said just by cocking it once the spring would shorten that much. All of this was a bunch of nonsense and he clearly didn't want to stand behind his product. I'll never buy another thing from that man! I wish I had saved the email he sent me so all of you could see exactly what he said.!!!

[Denby95]

I have the GRT kit in my D34 and it puts out 15.5 ft lbs, zero twang, very happy. So maybe the better route is to get the kit than the spring by itself.

Just wanted to amend my above post for the D460 spring, it wasn't the GRT spring for that gun, it was whatever the full FAC D460 spring kit that was sold for it with solid steel guides.

[splitbeing]

I prefer less power in my 460s. Around 14/15 fpe is just the right amount of snap in the shot cycle. 

To each their own, though. My .22 460 I have at 12 fpe. It thas less snap and so takes more attention to follow through to shoot well.  It's teaching me some discipline.  For shooting in the basement range at 50ft, it's also quieter. With a red dot, it's got the power for pesting work at 50 ft or so and packs a pumch with wadcutters.

[Ike the GSD]

The guy at Blueline said in a few months parts would be able to be sold to individuals and be more available, I'll just have to wait and see.

[mpbby]

I would talk to Chambers, about orders and backorders ..

https://twchambers.co.uk/

Marcos they have mainsprings but they're the UK compliant variety and the fella at Chambers said they can't export the full power springs, I found that odd when in the same email he recommended a Titan #14 spring ? I sent another email asking about this and they never replied?

I am persistent.., VERY! So, regarding Chambers, I would persist about order or backorder of Diana 350 original spring(s). Also a piston?

Regarding Titan #14, I don't recommend.  I bought one and it didn't fit = OD too large for my 350 (even without the spring sleeve).