Author Topic: RWS Diana 35!  (Read 12163 times)

Offline cfxdragon

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RWS Diana 35!
« on: January 02, 2010, 08:23:27 AM »
When showing off my new toys to a friend after Christmas he mentioned that he had an old air rifle that he bought used on a trip to Mexico about 15-20 years ago. He went into another room and came back carrying a Diana model 35, in quite nice condition. On inspection I found the date codes, revealing that it was made in september of 1974. I put some silicone oil into the chamber to soften up the leather seal and put a half dozen pellets through it the next day.

It really should be torn down, cleaned up, and refreshed. I need some help getting it in tip top shape for him:

It needs a vertical adjustment screw for the rear sight, it is a larger thread than that on my 350M, is the part available?

I plan to replace the spring and piston seal. I can make a new leather seal, but can I adapt a synthetic seal? Does Maccari or anyone else have a mainspring that will fit, ie. what are the measurements, or is an oem one available from umarex?

The breech seal was flat and rock hard but I will replace that.

What are the tricks for putting that 3 ball bearing trigger group back together?

The wood of the stock is in very good condition. The finish has become hazy etc. so I will refinish the stock for him. There is almost no rust at all on the rifle, it is a real find. I told him if he wasn't interested in it I would buy it from him and restore it for myself (like I need another AG)! He is excited about getting this classic up and going though so that he can shoot with me, and then hand it down to his son someday.

Dragon

Offline Dave T

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RE: RWS Diana 35!
« Reply #1 on: January 03, 2010, 03:24:33 AM »
I always use a "slave pin" to keep the trigger assembly from coming apart. The Slave pin is a short pin,in this case, that is just long enuff to keep the trigger parts together but short unuff to allow it to be removed. The slave pin is used to push the retaining pin out then positioned with a pin punch.Light bevels on the slave pin help a great deal. I don't have a 35 on hand and my exploded diagram shows a simplistic version of the 3-ball system. put trigger together held with the slave pin I mentioned above. Then with trigger in place in gun. Slide original pin in place driving out the slave pin. Alignment is critcal. You may need to adjust the pressure on the spring compressor to allow easy insertion.

Dave T.                                 http://sites.google.com/site/davesairguns/home
Never underestimate the power of stupid people in large groups. Hey! Where did they get those pitchforks and torches so fast!

Offline cfxdragon

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RE: RWS Diana 35!
« Reply #2 on: January 03, 2010, 04:05:41 AM »
Thanks a bunch for the tip Dave. I should be able to figure it out fairly easily then.

BTW I love your web site!  8)

Offline lil'feeby

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RE: RWS Diana 35!
« Reply #3 on: January 03, 2010, 04:11:41 AM »
cherish this moment they don't come very often....

Offline RedFeather

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RE: RWS Diana 35!
« Reply #4 on: January 03, 2010, 04:48:56 AM »


Search on the Vintage forum concerning your 3-ball trigger. There's a trick to disassembling/reassembling them. Or ask there. They should know about the seal conversion, too.





http://www.network54.com/Forum/405945/


Offline Dave T

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RE: RWS Diana 35!
« Reply #5 on: January 03, 2010, 05:45:02 AM »
Thx for the compliment. I add new stuff all the time

DavesAirguns
Never underestimate the power of stupid people in large groups. Hey! Where did they get those pitchforks and torches so fast!

Offline cfxdragon

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RE: RWS Diana 35!
« Reply #6 on: January 05, 2010, 04:24:47 AM »
Thanks a bunch RedFeather. I did a search over there and found a lot of good info.

Offline cfxdragon

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RE: RWS Diana 35!
« Reply #7 on: January 06, 2010, 09:29:52 AM »
I picked up a chrony today and put a half dozen shots over it from the 35. I had put some silicone oil in the chamber to try to help out the leather seal a few days ago. It is definitely going to need some work as the velocities were 550-570. Time to get out the spring compressor and see what parts are in order I guess. I am sure it will need a spring, I can practically cock it with a pinky.

Offline bnations

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Tuning Guide on Pyramid Air blog
« Reply #8 on: January 06, 2010, 06:08:38 PM »
Dragon,

Tom Gaylord blogged the tuning of a Diana 27 which also had the ball-bearing trigger.  It looks fairly comprehensive to me.

http://www.pyramydair.com/blog/2009/05/diana-27-part-9.html

Bobby

Offline cfxdragon

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RE: Tuning Guide on Pyramid Air blog
« Reply #9 on: January 07, 2010, 06:29:19 AM »
Thanks Bobby. That was a very helpful. I love Tom's blog, and had found some info there already on the model 35, but hadn't found that series on the 27.

Offline chase24

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Re: RWS Diana 35!
« Reply #10 on: May 08, 2010, 02:57:28 AM »
Hello Gents,
 I recently purchased an RWS model 35 at an estate auction, .22 cal, Stamped, "Made in West Germany"... Where do i find the date codes?

Jeff

Offline JimL911

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Re: RWS Diana 35!
« Reply #11 on: May 08, 2010, 06:37:28 AM »
You should see 2 double digits like 05 07 on the rear left side of the action just above the stock.

Offline RedFeather

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Re: RWS Diana 35!
« Reply #12 on: May 08, 2010, 11:10:13 AM »
If you have a knob style pistol grip and long finger grooves on the forend, you might have an early 35. Those will not have any date code, only made in west germany.