JSAR SS VALVE
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Topic: JSAR SS VALVE (Read 226 times))
kingacp
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Real Name: John King
JSAR SS VALVE
«
on:
September 24, 2022, 12:40:10 PM »
New to this forum
Need some help, I have a M-rod gen2 .22 cal that I bought about a month ago, shot nice groups right out of the box once broke in, I noticed that pressure would very slowly drop overnight from 2500 to 2000, I recently disassembled to install new JSAR SS VALVE, once disassembled I found out why it was slowly leaking down, apparently when assembled from factory they scratched the air tube just behind the threads of the air intake so was letting some air slip past the oring, I have lightly polished the scratched area, installed the new JSAR ss valve, TSS hammer and longer have a leak.
The problem I have is with the new valve I have to shoot about 6 to 7 rounds through it before I can start getting tighter velocities, for example 726, 780, 820, 840, 880, 900, levels out between 902 and 912, I have about 100 rounds through it, not sure what the break in time is for this valve,
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Re: JSAR SS VALVE
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Reply #1 on:
September 24, 2022, 05:29:00 PM »
Welcome to the GTA.David
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Re: JSAR SS VALVE
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Reply #2 on:
September 24, 2022, 05:42:25 PM »
Welcome to the GTA.
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Re: JSAR SS VALVE
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Reply #3 on:
September 24, 2022, 05:55:16 PM »
Welcome to the GTA!
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Re: JSAR SS VALVE
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Reply #4 on:
September 24, 2022, 06:02:54 PM »
Common issue with the JSAR SS valves. Two versions exist, one with a screw in jet on intake grate, one without.
Issue is O-ring sticksion and while after some use it can become less troublesome, it will never go away completely with a rework of the internals.
See:
https://www.gatewaytoairguns.org/GTA/index.php?topic=167384.msg155875265#msg155875265
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Re: JSAR SS VALVE
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Reply #5 on:
September 24, 2022, 06:24:27 PM »
Outstanding, John! Welcome to the GTA!!!
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Re: JSAR SS VALVE
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Reply #6 on:
September 24, 2022, 06:59:58 PM »
Welcome to the GTA John!
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Re: JSAR SS VALVE
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Reply #7 on:
September 24, 2022, 07:33:22 PM »
Welcome to GTA Forums John!!!
SAFE & Happy Shooting!!!!
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Re: JSAR SS VALVE
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Reply #8 on:
September 25, 2022, 08:09:30 AM »
Welcome to the GTA John.
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Re: JSAR SS VALVE
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Reply #9 on:
September 25, 2022, 03:32:29 PM »
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Re: JSAR SS VALVE
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Reply #10 on:
September 26, 2022, 07:23:26 AM »
Howdy
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Re: JSAR SS VALVE
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Reply #11 on:
September 27, 2022, 09:49:32 PM »
[smg id=8660]
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