Daisy Grizzly 840 Problems |
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Barrikaa
Newbie Joined: May-05-2019 Location: Oakville, Mo Points: 7 |
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Posted: May-13-2019 at 9:16am |
I've now repaired ~12 heavily used Cub Scout Daisy Grizzlies, but ONE of those rascals refuses to FIX. I leaks all the air out in ~4 seconds. I've replaced both o-rings (TWICE), added slight under-o-ring shims, tried heavier seal oil, inspected EVERYWHERE for cracks, re-sealed the piston head: no joy. And of course, Daisy no longer sells the parts needed to repair this (10A, piston, 10D valve body), though they DO continue to sell the gun NEW. My ONLY hope now is that there is a crack I cannot SEE in the valve body, and that by cleaning out ALL oil from it, I can maybe run a LITTLE thin plastic glue into it, hoping to seal this invisible flaw. I might then have to restore the flat piston seat face or the piston movement hole... Maybe someone badly overpumped this one in the past and cracked the body, but I sure can't SEE the flaw... Thoughts anyone?? NO idea what kind of glue to use yet...
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Barrika
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the fuse
Red Ryder Member Joined: January-20-2013 Location: NY Points: 1694 |
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If it is one of them Daisy plastic valve bodies, my guess is a hairline crack. I had a real nice D 914 range rifle that wouldn't hold....no matter what. On real fine inspection I found a tiny crack.
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All I'm for is the liberty of the individual.
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cobalt327
Red Ryder Member Joined: November-15-2013 Points: 3139 |
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Yeah, it's clear plastic. Kind of odd looking being see thru.
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