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 Post subject: Umarex Surge 490fps
PostPosted: Wed Nov 27, 2013 8:18 am 
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Joined: Fri Jan 27, 2012 8:02 am
Posts: 16
Location: Springwater, Sk
I recently purchased and Umarex Surge 490fps the other day and being one not to left anything alone I tore her down and this is what I found.
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Here are some quick measurements on the main spring 28 coils, 8.25 long, .110 spring diameter, .583 i.d and .821 o.d. There is a metal piston spring sleeve and a plastic rear spring guide (.540 diameter).
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Here's the piston and she needs a new seal already so I'll be doing a deburring, lube job and replace the seal in the coming weeks. I been doing a little reading and it looks like a Ruger Airhawk seal should work but not sure.

Just a quick heads up the rifle I bought was shipped dry, very little lube in the air chamber. It was sounding like a wounded goose as I cocked it so I added some air chamber lube to her and she quieted back down again.


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 Post subject: Re: Umarex Surge 490fps
PostPosted: Thu Nov 28, 2013 4:22 am 
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Joined: Wed Jul 01, 2009 3:23 pm
Posts: 3067
Location: Northern Ontario
Its a Diana 34 copy, and an Airhawk in a different stock.

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 Post subject: Re: Umarex Surge 490fps
PostPosted: Thu Nov 28, 2013 7:53 am 
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Joined: Fri Jan 27, 2012 8:02 am
Posts: 16
Location: Springwater, Sk
Awesome thank you paddyfritz


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