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 Post subject: Re: Beeman P17
PostPosted: Mon Aug 06, 2018 1:05 am 
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Joined: Sat Nov 05, 2016 10:52 am
Posts: 2607
Location: Caronport, Saskatchewan
Thanks for the tips!

Sent from my LG-M154 using Tapatalk


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 Post subject: Re: Beeman P17
PostPosted: Thu Aug 09, 2018 11:53 pm 
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Joined: Sat Nov 17, 2012 9:38 am
Posts: 38
Location: Mtl, QC
Thanks for the tips Chevota. Especially regarding the shimming of the piston.
What are the "buttons" you are referring to in the picture and their purpose?


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 Post subject: Re: Beeman P17
PostPosted: Fri Aug 10, 2018 9:20 pm 
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Joined: Sat Jan 25, 2014 9:16 pm
Posts: 1233
Location: United States
As mentioned the buttons are not needed since the piston is more or less pushed in a straight line so there's very little scraping. Plus the tube is extremely tough and piston soft so there's no galling or scraping unless you get dirt in it. I put them on bc I can, and it was too tempting to do so. So now there's zero metal to metal contact and less friction but I honestly can't tell the difference when cocking. I'd bet it will make a big difference when dirt gets in it, not that I plan on that but since the piston and tube are lubed it'll be a dirt magnet.
Here's the pix w/ text to better describe the shim:


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Piston shim - buttons.jpg
Piston shim - buttons.jpg [ 98.74 KiB | Viewed 112 times ]
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 Post subject: Re: Beeman P17
PostPosted: Fri Aug 10, 2018 9:33 pm 
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Joined: Sat Jan 25, 2014 9:16 pm
Posts: 1233
Location: United States
Another pix. I forget but i think it was .003" plastic harvested from the thinnest water bottle I could find. Then I sanded the buttons to fit in the tube but it's a tight fit so there was virtually no plastic left. I think it was basically just glue left with a micron of plastic left here and there. So I sanded the piston OD down a bit to buy some space. It's been a while but i think I chucked it in my drill and gripped it with course sandpaper until I got what I wanted. This pix is of that, buttons glued on but before sanding them to fit.
I think it may be a better pix of the shims on the face too


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100_2275 - Copy.JPG
100_2275 - Copy.JPG [ 62.98 KiB | Viewed 112 times ]
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 Post subject: Re: Beeman P17
PostPosted: Fri Aug 10, 2018 10:45 pm 
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Joined: Sat Nov 17, 2012 9:38 am
Posts: 38
Location: Mtl, QC
Thanks for the detailed explanation Chevota! Much appreciated. The last pic in particular really helped.
Cheers.


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 Post subject: Re: Beeman P17
PostPosted: Sun Aug 12, 2018 3:37 am 
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Joined: Sat Mar 16, 2013 5:15 am
Posts: 3498
Location: Edmonton
Gentlemen, this thread is not about repairing a P-17. Please re-read the OP and bring it back on topic.


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