HW/Weihrauch Resealing an early HW70
- Thread starter moleeye
- Start date
that is the second version of the seal
and both non safety pistols have 2 different style seals and both are not available as of now
When Mark Knibbs from Knibbs gets back to me i will know more
but i think that the pistol will have to be upgraded to the new style piston and seal and the rear of the piston has the same look new and old but it will be 40-50 bucks at Chambers get a breech seal also
and both non safety pistols have 2 different style seals and both are not available as of now
When Mark Knibbs from Knibbs gets back to me i will know more
but i think that the pistol will have to be upgraded to the new style piston and seal and the rear of the piston has the same look new and old but it will be 40-50 bucks at Chambers get a breech seal also
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Had a very busy pre Christmas period so have not been in to have answered this.
I have tuned a few of these.
You can usually get hold of the Teflon seal for these from Chambers. it is best to spin it down (in situ on the piston) in the lathe, or make yourself a little adapter bung to fit a battery drill if you do not have one. Polishing down the seal (they always come over size) until it starts to slip in to the piston chamber. Do not worry about going under size, indeed it's beneficial, as these type seals will grow out to fit during the first few 100 shots and Teflon seals always fit better if having growed out, rather than squeezing in.
Teflon fails to seal correctly without using the correct lube. Make sure it gets a smear of Silicon lube and use some Superlube on the rear of the piston.....Superlube will do at a pinch on the seal also, but avoid moly.
Alternatively, for the skilled, you can make your own leather cup, after drilling and tapping the piston face for a 4mm countersunk screw..
I used a Nylon washer for a slip ring on the guide, but again make your own on the lathe and get about 470 fps and 1/2 inch 10 yard groups with AA Express ....about the best pellet in this gun ...Strangely it did not seem to like Hobby.
I have tuned a few of these.
You can usually get hold of the Teflon seal for these from Chambers. it is best to spin it down (in situ on the piston) in the lathe, or make yourself a little adapter bung to fit a battery drill if you do not have one. Polishing down the seal (they always come over size) until it starts to slip in to the piston chamber. Do not worry about going under size, indeed it's beneficial, as these type seals will grow out to fit during the first few 100 shots and Teflon seals always fit better if having growed out, rather than squeezing in.
Teflon fails to seal correctly without using the correct lube. Make sure it gets a smear of Silicon lube and use some Superlube on the rear of the piston.....Superlube will do at a pinch on the seal also, but avoid moly.
Alternatively, for the skilled, you can make your own leather cup, after drilling and tapping the piston face for a 4mm countersunk screw..
I used a Nylon washer for a slip ring on the guide, but again make your own on the lathe and get about 470 fps and 1/2 inch 10 yard groups with AA Express ....about the best pellet in this gun ...Strangely it did not seem to like Hobby.
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Interesting how mine says “Beeman’s” with the ‘s. My medallion is fancy, as is the custom link pin.
So the new style piston will fit? What about the rear sight assembly?
I was going to buy a sight, may as well order the piston.
Nice, I will have more into it than a new one. I will buy a new one just to spite myself.
Then I will have two…
So the new style piston will fit? What about the rear sight assembly?
I was going to buy a sight, may as well order the piston.
Nice, I will have more into it than a new one. I will buy a new one just to spite myself.
Then I will have two…
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I have found that's the beauty in buying vintage airguns, you have the opportunity to amass impressive cost overruns and discover innovative modifications by previous owners!
I can't stop though.
My HW70 is marked Made for Beemans also.
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AA Express?
I have been shooting RWS R10 7gr., and RWS Basic 7gr, and mine doesn't like Hobby's either.
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Got mine all cleaned up and I will need a sear also. Hence no cocking.
It is now a restoration project.
It is now a restoration project.
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That sear #15 looks very different than the current, I may be out of luck.
i have my doubts that it could be welded and ground correctly .
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Cut a new one out with a scroll saw ?
https://www.harborfreight.com/power...ll/16-in-variable-speed-scroll-saw-62519.html
My buddy use to draw out and cut small gun parts with one ..
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WTF?! Who would ever think to do such a silly thing?? Thanks crazy.
Did the inside of you compression tube take a damage from the bit?
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every once in a while, on the UK forum someone will come across and old gun and take it apart and the cylinder is full of nails
so, who would do that, kids with no pellets
so, who would do that, kids with no pellets
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This is stamped steel I think? Would welding a spot on there and reshaping work? Or am I dreaming?
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