L2E Posted January 14, 2016 Report Share Posted January 14, 2016 RATech posted pictures of their P90 parts (not yet packaged) on their FB if anyone's interested. Parts were: -bolt carrier -auto sear & the small bit that goes on top of it -valve knocker -valve knocker lock No pics of sears or hammers so I guess they found it to be unnecessary? so they are again making parts to fix a non-existent problem... any known problems with any of those parts? If I was going to replace the carrier, I would get a lighter version like the YSC. Something needs to be done about the bolt catch... Quote Link to post Share on other sites
bankz5152 Posted January 14, 2016 Report Share Posted January 14, 2016 Just so they can make a RA P90 and sell it for an inflated price. If they make a steel hop unit together with a steel bolt stop then I am a happy boy. 1 Quote Link to post Share on other sites
L2E Posted January 14, 2016 Report Share Posted January 14, 2016 Just so they can make a RA P90 and sell it for an inflated price. If they make a steel hop unit together with a steel bolt stop then I am a happy boy. In theory I agree with that, but I fear that a steel bolt stop and hop unit would lead to another issue somewhere else... Quote Link to post Share on other sites
renegadecow Posted January 14, 2016 Report Share Posted January 14, 2016 any known problems with any of those parts? Just the broken top part of the auto sear from that same guy who broke a lot of other parts. Quote Link to post Share on other sites
L2E Posted January 14, 2016 Report Share Posted January 14, 2016 Just the broken top part of the auto sear from that same guy who broke a lot of other parts. but no one else has though, right? maybe a casting issue on his part? Quote Link to post Share on other sites
renegadecow Posted January 14, 2016 Report Share Posted January 14, 2016 Nobody else that I can Google in English. I think it being effectively barred from distribution in the US stunted its net presence. 1 Quote Link to post Share on other sites
bankz5152 Posted January 14, 2016 Report Share Posted January 14, 2016 (edited) In theory I agree with that, but I fear that a steel bolt stop and hop unit would lead to another issue somewhere else...Ill have another look but those two parts dont appear to comw in contact with anything else so i cant imagine too much of an issue. That said im going to attempt to make one from some polycarb i have laying about. on my phone, my spelling will suck Edited January 14, 2016 by bankz5152 Quote Link to post Share on other sites
CaptCalvin Posted January 15, 2016 Report Share Posted January 15, 2016 Steel bolt stop and hope unit I think wouldn't create too much of a problem. It's just that the stock hop unit fits real nice and snug in the upper. If they do make a steel unit I hope it'd get this aspect down. 1 Quote Link to post Share on other sites
bankz5152 Posted January 15, 2016 Report Share Posted January 15, 2016 (edited) My mags arrived Took advantage of ehobbys 20% sale just after xmas. Got 3 mags works out as £33 each all in. Far sight cheaper than the £55 from milspec! My original mag was leaking so I replaced the orings with some of the nice green nitrile ones, considerably better than traditional rubber ones. I used a slightly larger oring which has moulded to the shape of the area which appears to have given a perfect seal Edited January 15, 2016 by bankz5152 Quote Link to post Share on other sites
BioRage Posted January 15, 2016 Report Share Posted January 15, 2016 This happened to my friend on semi auto; Also his original mag started leaking, upon taking it apart, there was a hairline crack in the gas tank. 1 Quote Link to post Share on other sites
renegadecow Posted January 15, 2016 Report Share Posted January 15, 2016 Do they 3d print nylon now or is that SLS? Maybe someone ought to make bolt stop replacements that way because it took me over 2 hours to carve mine. Quote Link to post Share on other sites
bankz5152 Posted January 15, 2016 Report Share Posted January 15, 2016 Interesting idea, have to look into it! on my phone, my spelling will suck Quote Link to post Share on other sites
CaptCalvin Posted January 15, 2016 Report Share Posted January 15, 2016 Yeah I didn't think it was just gonna be me. Quote Link to post Share on other sites
rusTORK Posted January 16, 2016 Report Share Posted January 16, 2016 How people got more then 400 FPS? Here is my P90: 1 Quote Link to post Share on other sites
bankz5152 Posted January 16, 2016 Report Share Posted January 16, 2016 (edited) Mines 340 on the dot with .2s. Room temp. Could be a sticky floating valve, damaged nozzle, damaged floating valve return sprinf on my phone, my spelling will suck Edited January 16, 2016 by bankz5152 Quote Link to post Share on other sites
rusTORK Posted January 16, 2016 Report Share Posted January 16, 2016 Could be a sticky floating valve, damaged nozzle, damaged floating valve return sprinf I have nothing of that, but i will re-check again. Here is photo of disassembled nozzle: Quote Link to post Share on other sites
renegadecow Posted January 17, 2016 Report Share Posted January 17, 2016 There are two nozzle types: 350 and the usual WE which does 440 here. See the two tabs on the rear section of the nozzle which the floating valve rests against? They're longer on the lower fps version which allows the floating valve to shut sooner. Regular is about half that length so to get anywhere in between you need to whittle it down accordingly and make sure they're level and squared off or your fps will be erratic. 2 Quote Link to post Share on other sites
renegadecow Posted January 17, 2016 Report Share Posted January 17, 2016 (edited) Came across a rather alarming development on my P90. Well, I can't really say if it actually developed into the problem at hand or it's been like that from the start, but we'll find out soon enough. Anyway, while making love doing regular inspection like I do before a game, I noticed a fairly weak leak coming from inside the gun. I'm talking cat fart weak and when I checked the leak rate the internal tank without a magazine attached will empty itself in about 2-3 days which is only about 5-8 shots worth of gas so that's pretty damn slow. While the leak was still tolerable enough to play with, I decided to forego the weekend skirmish to root around inside my waifu gun. To my dismay, it appears that there is a clear warp in the reservoir where the least supported area looks to have bloated. Now, as I've said I'm still unsure if this was a result of stored gas pressure against time or it's just now that I've detected the leak. If it's worth anything, I've recently been using Guarder green gas on it as it performs exceptionally well on my AK and other gas guns. It's a lot drier (minimal silicone oil) so the hop up becomes more consistent and I get a decent power boost of up to 20fps with .25g. It also jumps my P90's rof from an already blistering 1,300rpm to 1,500rpm which clearly means it also operates at a slightly higher pressure than usual. So for now I just carefully bent the deformed section back in a vice and reassembled it without any added sealants yet. I'll continue to use the remainder of my Guarder gas and see if the problem comes back. If it does, I'll likely bend the section back again, reassemble with sealant this time and stick to the slightly lower pressure green gas in the market. Edited January 17, 2016 by renegadecow 2 Quote Link to post Share on other sites
Habakure Posted January 17, 2016 Report Share Posted January 17, 2016 (edited) Man that sucks balls. Hopefully all this first batch testing, that we makes us do, will lead to improved internals. Saw your post on Facebook renegadecow, always nice of you to share your experiences with the rest of us. Of , it would be nice if there were no issues, with the P90, but still nice to share said issues. Edited January 17, 2016 by Habakure Quote Link to post Share on other sites
renegadecow Posted January 17, 2016 Report Share Posted January 17, 2016 Hopefully it's not too big a problem. It just boggles the mind that their engineers seem to haven't learned anything from bloating Tanaka M700 mags or even their own 1911 mags which do the same. Quote Link to post Share on other sites
DarkLite Posted January 17, 2016 Report Share Posted January 17, 2016 So would it be safe to say you should vent the internal tank between games? Quote Link to post Share on other sites
renegadecow Posted January 17, 2016 Report Share Posted January 17, 2016 If you mean for storage I'd say yeah. Keeping mine empty for the time being until next weekend. And for a permanent solution there seems to be enough space to slot a screw and nut through like the TM M870 gas tank mod. Quote Link to post Share on other sites
Alias1983 Posted January 17, 2016 Report Share Posted January 17, 2016 I would not vent, but use enough to get it very low but keep some in. I learned a total empty mag develops funky minaminah or bad seals/valves 1 Quote Link to post Share on other sites
rusTORK Posted January 17, 2016 Report Share Posted January 17, 2016 I am always store magazines with some gas inside, but empty of BBs. Also, i am store magazines vertical. Quote Link to post Share on other sites
Alias1983 Posted January 17, 2016 Report Share Posted January 17, 2016 I am always store magazines with some gas inside, but empty of BBs. Also, i am store magazines vertical.I store mine all sorts of ways but never empty of gas. 1 Quote Link to post Share on other sites
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