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Action Markers Sentinel, AM-P Illusion

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Old 09-21-2016, 05:46 PM   #1 (permalink)
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Join Date: May 2008
Location: Colorado

Leaky sentinel

So I recently picked up what I believe is a sentinel ts with the threaded feedneck(has orings inside so leads me to believe it is angel threads according to the manual I found). Anyways, it has a massive valve leak after cleaning and reassembling. I don't think it was leaking before so...



The cupseal looks okay though it is slightly bent where the velocity spring would sit so maybe it is causing the cupseal not to seat properly. I tried a slightly smaller cupseal that was in the extra parts I got with it but still have the same leaks. Valve looks to be in good condition with just some wear from the hammer but not much. New valves and or cupseals available anywhere?





Any ideas on what I should do? I really like this gun and would like to get it back up and running and play with it some before selling it. I doubt I'll keep it as me and centerfeed just don't get along real well. If it was side feed I'd keep it in a heartbeat. The trigger feels great.



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AM Sentinel and ION MAXD for sale
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wanted:
Parts: Left feed sterling body/whole gun spyder threads preferred.

Last edited by James_Blond; 09-21-2016 at 06:03 PM.
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Old 09-21-2016, 06:55 PM   #2 (permalink)
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ok so cup seal is good to go, just put a lot of dow33 on it and it works fine. However have recocking issues. Short brrp after firing, won't recock. Thinking my diy trigger return spring is too weak, though shimming isn't helping so maybe its something else.
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My MCB feedback: https://www.mcarterbrown.com/forums/f...ml#post2245661

AM Sentinel and ION MAXD for sale
https://www.mcarterbrown.com/forums/s...ml#post3318647

Misc Sale: https://www.mcarterbrown.com/forums/m...yder-more.html

wanted:
Parts: Left feed sterling body/whole gun spyder threads preferred.
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Old 09-24-2016, 09:21 PM   #3 (permalink)
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Strangely it works fine upon airing it up today. No leaks and no recocking problems. I just need a new piece of hardline to replace the original one so I can actually use it. Maybe shimming the trigger return spring did help.
__________________
My MCB feedback: https://www.mcarterbrown.com/forums/f...ml#post2245661

AM Sentinel and ION MAXD for sale
https://www.mcarterbrown.com/forums/s...ml#post3318647

Misc Sale: https://www.mcarterbrown.com/forums/m...yder-more.html

wanted:
Parts: Left feed sterling body/whole gun spyder threads preferred.
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