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 Post subject: Diana 20
PostPosted: Sat Oct 06, 2018 1:04 pm 
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Joined: Tue Oct 13, 2015 5:01 pm
Posts: 147
Location: Western Norway
After a lot of hassle (lost in transit) this sweet little thing finally showed up.

Visible metal looks good, some scratches and dents in the stock but a refinish incl a bit of ironing should take care of that.

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The action seemed very dry so I decided not to shoot it before fettling, besides the urge to take a peek inside was quite strong so a few minutes later it was in bits.

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Washed innards looked good. Did a little deburring/polishing in the usual places, then a final clean and the parts are now ready for reassembly.

Piston seal is plastic and looks ok, breech seal is leather and looks good as well, time will tell if they work as intended.

Spring: Inner diameter 13 mm, wire 3 mm, 26 coils, length 186 mm.

Markings on the compression tube says "Diana 20 T01" but that's no T01 trigger, what happened here?

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Nice pointy front sight, didn't have one of these from Diana before.

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Onwards with heat gun and a blunt knife!

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Before sanding.

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More later ...


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 Post subject: Re: Diana 20
PostPosted: Sat Oct 06, 2018 2:25 pm 
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Joined: Wed Jul 26, 2017 7:01 pm
Posts: 1666
Location: GTA, ON
Nice~

Took a chair and waiting for the on-going updates! :D

_________________
Izzy 46M
HW30 Stainless Steel + Discovery 40mm Scope
HW35 Walnut + Hawke 40mm Scope
2240+14" barrel/Williams peep sight
Camo Chaser long barrel rifle kit
P3+2x20 Kit Scope
HW40+Extender
HW45+Grip panels from Russia
P1322 with walnut forearm


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 Post subject: Re: Diana 20
PostPosted: Sat Oct 06, 2018 7:05 pm 
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Joined: Tue Sep 11, 2018 1:02 pm
Posts: 31
Location: Hamilton Ontario
Your are doing a fantastic job my friend , please keep us updated . What's your choice of stain for that beauty?


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 Post subject: Re: Diana 20
PostPosted: Mon Oct 15, 2018 8:41 am 
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Joined: Tue Oct 13, 2015 5:01 pm
Posts: 147
Location: Western Norway
Thank you!

Got the action back together again without problems.

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"Bore and stroke" = 25 and 51 mm = 25 cm2 swept volume, a cute little "engine".

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Removed the leather breech seal and discovered that a Weihrauch seal might work. Testing with 0.475 g pellets I got 163 m/s (534 fps) = 6.3 joules (4.6 fpe). A piece of paper over the breech while firing showed leakage, so I shimmed the seal a little and tried some 0.52 g pellets. Got 161 m/s (528 fps) = 6.7 Joules (4.9 fpe) = a little more power. Wanted to test for leakage but then a shot went of while I was closing the breech. Was testing without the stock, might have touched the trigger ... anyway I decided to postphone further testing and have a beer instead.

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Found a loose piece of wood near the rear stock screw hole, soaked it and the surroundings in epoxy, should be ok now.

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After removing the old stock finish an iron and a damp cloth helped me get rid of most of the dents. Sanded some more but the stock still had a distinct walnut colour, a bit irritating because I had hoped for light wood and wanted to ebonize or to stain it green or blue. Oh well, here it is touched up with walnut stain and then oiled (boiled linseed oil).

Quite nice so far IMO, a handful of oil coats for sheen and I'm happy.

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