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johnbaz

Made a small part for a mates air pistol..

Hi all

A friend at work has a Beretta mod92 Co2 air pistol that he couldn't use because the threads had gone on the part that lifts the Co2 Cart up tio the seal before the cam lever presses it tight on to the seal..

I turned a bit of 3/4" brass bar on my old Faircut lathe, threaded it and knurled it for grip..

He had tried hacksawing the threads below the damaged part but then it was too short to do it's job  

The thread is 5mmx.8..

The old and the new..




I haven't used the lathe for a few years and it was piled high with boxes and other junk that should be in the shed (that collapsed! )

I'll have to get the new shed erected, I bought it a couple of years ago and it's still cluttering the garage up  


Cheers, John  
sod

Great job I bet it was fun using it again I would love a lathe
12Bore

Nicely done, now you want to do more, don't you?  
johnbaz

12Bore wrote:
Nicely done, now you want to do more, don't you?  


Ha ha ha!!

It looks like i'm buying the pistol from him tomorrow!!

He needed the part as another lad at work was going to buy it from him but doesn't want it now, just when I said I wasn't buying any more- I now have two pistols coming  



John  
sod

That sounds familiar  
johnbaz

I have the pistol now, it's a heavy old lump!!




The bit I made..




Must say, i'm not happy with the bit I made, he said that it worked fine and screwed to the Cart smoothly but I can't help thinking it should be a bit longer, he said that he'd cut 5mm off so I made the replacement 5mm longer but I can't see any of the screw protruding through the other side..
I think he must have cut off more than 5mm  


I'll measure the shortfall and make another one at my leisure  






Only the Crosman 2240 to arrive by post now  


EDIT- Forgot to say, i'll have to make a rearsight for it


John  
bodger

Top draw.
12Bore

Very nice! Maybe he took off an Imperial 5mm?
ewal

johnbaz you made a nice job of it & it would be a shame to throw it away. I would saw the thread off flush with the nob, then drill & tap 8mm & silver solder a length of 8mm bolt. 10mins job done.
johnbaz

ewal wrote:
johnbaz you made a nice job of it & it would be a shame to throw it away. I would saw the thread off flush with the nob, then drill & tap 8mm & silver solder a length of 8mm bolt. 10mins job done.


Hi ewal

That's what I was going to do with the original part but I just fely like making a new one as I hadn't used my lathe in ages!

It would need to be the same thread though (5mmx.8) as the zinc alloy female part would also need drilling and tapping oversize and i'm unsur whether it would weaken it too much

As it is now the part is doing the job and the pistol isn't leaking so I may leave it as is for now..


Cheers, John  
ewal

I can see what you mean, I just hate wasting brass, it looked like 30mm diameter. Most of the fittings I make for the loco's are fabricated.
johnbaz

ewal wrote:
I can see what you mean, I just hate wasting brass, it looked like 30mm diameter. Most of the fittings I make for the loco's are fabricated.


Do you make parts for the live steal models, Or real Loco's??

We used to have Rolls Royce Loco's at work on the standard Gauge lines (4ft 81/2" ??), lots of years ago they used to go on to the main London/Sheffield line to get to another part of the firm,Here's a pic from the 80's of my cousin on one (pointsman)..

http://i4.photobucket.com/albums/y116/johnbaz/OurMickatwork.jpg



Cheers, John
ewal

The parts are for the 7 1/4" gauge engines I build.

A photo
ewal

Sorry I forgot to say 4 sets of automatic drain cocks.
johnbaz

ewal wrote:
Sorry I forgot to say 4 sets of automatic drain cocks.


Are they auto as in a ball and spring?

They look like a similar idea to the blow off valves in Crosman pump up rifles  


Cheers, John  
ewal

They are automatic, ball but no spring. When you open the regulator the steam closes the ball & when you close the reg the ball rolls away from the hole & the condensation runs out.

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