HW/Weihrauch Weihrauch HW30/R7 Parts Search?

jlharden said:

Hello all,

I've been troubleshooting my old R7 and in search of new barrel shims and pivot bolt assembly. Both are fairly worn. I've visited the usual sources with little success. Anyone know where I might find some Weihrauch small parts?

Thanks!

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Pyramid Airguns, that's where I sourced some.

T W Chambers in the UK shows bolt assembly B1349 and washer W077 in stock. Many folks here have had good results with Chambers.
I had thought the washers were hardened and wouldn't wear...?
https://twchambers.co.uk/airgun-spares/weihrauch/hw30/

Don R.

https://www.airgunspares.com/gunspares/airgun-spares/weihrauch/hw30.html
the prices are with vat on them we don't pay them their service is great but remember those prices are in Pounds

AOA has some parts.

jlharden said:

I did search there. May just give them a call. Thanks!

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It was a bit of challenge, and they did eventually come through with the washers and the through bolt assembly included after some time. I had given up and low and behold it showed up sometime later.

jlharden said:

Shim washers, no pivot bolt. Multiple shipments from various vendors may be the option unless TW Chambers pans out. Thanks!

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Did you call them or just look at their website? They have lots of parts not listed on their website. Call Shane there at ext 150.

What's wrong with the R7 that you want to replace the pivot parts?

the world and parts for our hobby could be in for a long rough ride

Message me for my phone number if you need more help.

JG Airguns (John Groenewold near Chicago) shows the pivot shims under HW 50 parts. They are the same part for any HW with the 30mm receiver tube diameter.

MDriskill said:

JG Airguns (John Groenewold near Chicago) shows the pivot shims under HW 50 parts. They are the same part for any HW with the 30mm receiver tube diameter.

HW50 : JG Airguns, LLC

JG Airguns : HW50 - Accessories, Cleaning Supplies Airguns Ammo, Collectable Ammo, Shootable Books, Catalogs, Manuals, etc. CO2 Cylinders Collectables Mounts, Scopes, Sights, etc. Parts Tools Gift Certificates Buglespanner see Will JG Airguns Accessories, Cleaning Supplies Airguns Ammo...

www.jgairguns.biz

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The spacers for every gun besides the HW 80/35 are the same. All 25,26 mm tubes use a smaller shim. The 30 mm tubes use a bigger shim.

That being said I’ve NEVER wore a shim out as they are spring steel. I’ve seen many who buggered up the innards trying to push the bolt through and fat screwdriver ing the head with a tapered slandered driver.

A.G.R said:

The spacers for every gun besides the HW 80/35 are the same. All 25,26 mm tubes use a smaller shim. The 30 mm tubes use a bigger shim.

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Diameter wise? Just want to be clear. Now as far as thickness, let's say feeler gauge wise.

To be clear, my post above refers NOT to the piston seal size, but to the receiver tube's OUTSIDE diameter, which is the operable number for breech shims. The HW 30 and 50 use a 30mm OD tube; the big HW 35/80 with screw-off rear section a 35mm one.

The smaller shims are 18mm in diameter, the bigger ones 22mm. Both sizes have an opening a hair under 8mm and are 0.004" (0.1mm) thick.



As a point of historical interest - most pre-war barrel-cockers don't have any breech shims, and Weihrauch didn't start using them until the mid 1970's. Their older guns have none, or sometimes only on one side; the very thin material shows they are a bit of an afterthought!

Diana barrel-cockers, in contrast, have used a much better (IMHO) design since the 1950's - heavy rimmed washers fitted into milled recesses in the breech block, with an additional belleville washer on one side to control tension. I have never seen a lateral barrel alignment issue on a Diana.