garry Posted May 28, 2015 Report Share Posted May 28, 2015 Is the mag a good tight fit? In the past I've known the mag catch to wear causing the mag to sit slightly low and give issues. Seen it often on Glocks with the plastic mag release as well. Link to post Share on other sites
Slono Posted June 29, 2015 Report Share Posted June 29, 2015 Is the mag a good tight fit? In the past I've known the mag catch to wear causing the mag to sit slightly low and give issues. Seen it often on Glocks with the plastic mag release as well. ^ This. Try a several things: - try a different magazine catch - try a different valve knocker spring - try a different valve knocker - try a different disconnector set - try a different hammer I can guarantee you that you will eventually fix your problem if you do all the above. I have had this problem before and it ended up being my valve knocker spring. I noticed that the one I was using wasn't as stiff as the new(er) one I replaced it with. If it wasn't for this experience I would have never believed that particular spring could ever cause problems unless you had it installed incorrectly. But try the magazine catch swap first. Link to post Share on other sites
harborne blue Posted June 29, 2015 Author Report Share Posted June 29, 2015 I've checked the mag release and it looks fine - was from a brand new donor MEU and the mags sit tight. Firing the gun with the slide off, I can see the mag move slightly forward when the knocker strikes but this doesn't look like the issue. I think the issue is the knocker. It moves fully out and at speed so I don't think it's a friction problem. However, it's only giving a light strike on the mag valve and it deflecting downwards. I've replaced the knocker and the actuator so could it be: (1) The knocker valve spring not being strong enough; (2) Wear and tear on another part causing the knocker to mis-hit; (3) Something else? If it's (1), what's the best way to fix it? I can't seem to find a stronger replacement. If it's (2), I assume that I must have done something wrong when I rebuilt the gun? Link to post Share on other sites
Slono Posted June 30, 2015 Report Share Posted June 30, 2015 Take the valve knocker spring out and bend it in the opposite direction that it's supposed to work to give it some extra tension. If the stronger valve knocker spring still doesn't work, try examining the angle the magazine is in relation to the valve knocker when it strikes. If the knocker slides down after striking the flow valve then perhaps the grip can be shimmed with tape on the inside to change the angle the magazine sits once it locks into the mag catch. If that still doesn't work consider examining your hammer strut, it could be more bent than usual causing it to underutilize the hammer spring. Link to post Share on other sites
harborne blue Posted June 30, 2015 Author Report Share Posted June 30, 2015 Cheers. I've ordered some stronger springs and will check the angle of engagement when I strip her down again. Link to post Share on other sites
Slono Posted July 2, 2015 Report Share Posted July 2, 2015 Super. Keep us updated. Link to post Share on other sites
harborne blue Posted July 9, 2015 Author Report Share Posted July 9, 2015 Finally got a couple of hours piece and managed to totally strip the gun again... The problem seems to be that the valve knocker is flopping around - it pings forward when the trigger is pulled but deflects up and off the valve. Without a mag in, it fires forward then flops around and down like a dogs dirk. I have checked this against my rock solid ACM m1911 clone and the knocker comes out like a rocket and is rock solid so there's clearly something not right with the Marui. I can't see anything that should be there on the TM to hold knocker true when fired so suspect that either a small part flew out when the gun failed or something in the frame is broken. Heeelp! http://arniesairsoft.co.uk/forums/index.php?/gallery/album/2243-meu/ Link to post Share on other sites
Slono Posted July 10, 2015 Report Share Posted July 10, 2015 Can you take a picture of your valve knocker? Link to post Share on other sites
renegadecow Posted July 10, 2015 Report Share Posted July 10, 2015 The knocker flops around even with its spring holding it down? Link to post Share on other sites
icolater Posted July 10, 2015 Report Share Posted July 10, 2015 Replace spring in the hammer housing. Link to post Share on other sites
Slono Posted July 10, 2015 Report Share Posted July 10, 2015 Disregard my last post. Tapatalk couldn't open the link so I had to view it in another browser. Link to post Share on other sites
Slono Posted July 10, 2015 Report Share Posted July 10, 2015 Replace spring in the hammer housing. I agree. You can try placing a BB in the hammer housing under the spring in to see if is actually the hammer spring that's the problem. Link to post Share on other sites
harborne blue Posted July 10, 2015 Author Report Share Posted July 10, 2015 I've replaced all the springs in the gun, literally every one with upgraded versions. It's a new steel knocker as well. The pics in the gallery show the knocker in Fired Position (1 and 3) and what happens when there's a mag in (pic 2) - the knocker flips into the gaps between the mag valve and body. It feels like there's * something * missing that holds the knocker in place and I'm stumped. Totally. According to this pic http://s290.photobucket.com/user/dstiltner/media/TM1911ExplodedPartsDiagram.jpg.html I am not missing any bits. I can't find a clear pic of a lower frame on the interweb but I think a piece of this must have broken off? Link to post Share on other sites
harborne blue Posted July 13, 2015 Author Report Share Posted July 13, 2015 I am about to give up with this darn thing... Stripped it again, alongside a work m1911 and worked out that the valve knocker spring wasn't set in properly. Re-seated this and the knocker now flies straight and true. However... The <fruiting> thing still won't fire!! So unless anyone else has any ideas I am going to: Swap out the enhanced hammer spring the std one; Try again; Swap out the mag release for a new one; Try again; Take to skirmish / fling in parts box. The slide is great and slips onto another gun I have to it may be time to cut my losses... ?! Link to post Share on other sites
Slono Posted July 15, 2015 Report Share Posted July 15, 2015 If you have other 1911s I would try swapping the parts completely. If that doesn't work then you know it's the frame that is messed up and not anything else. Do you think a hi capa knocker valve would fit? They look different because they have extra material on the top of the knocker prong. Link to post Share on other sites
harborne blue Posted July 15, 2015 Author Report Share Posted July 15, 2015 Thanks - that's the plan I think. The hammer spring is fine and the slide slips onto another 1911 I have with no problems. The gun did fire when I first built it but I wonder if there's a small deviation in the lower frame that's meaning that the knocker pin, with even slight wear, isn't hitting the valve square on / with enough force. Time will tell and I'm definitely not buying a Guarder kit again... Link to post Share on other sites
harborne blue Posted August 2, 2015 Author Report Share Posted August 2, 2015 So... looks like there's something amiss with the lower frame. The slide works fine on an ACM 1911 so for the time being, I am going to retrofit the original TM lower but keep the slide. What a huge waste of time and money this <fruiting> Guarder kit has been. Link to post Share on other sites
Slono Posted August 4, 2015 Report Share Posted August 4, 2015 Ouch that's disappointing. Once in a while even Nova makes lemons also. I had a Kimber Warrior Nova kit that's lower frame was also defective. It's a paper weight. Link to post Share on other sites
harborne blue Posted August 21, 2015 Author Report Share Posted August 21, 2015 Anyone know a TM expert who fixes pistols in the Midlands? Retrofitted the innards into the original frame and it STILL doesn't <fruiting> fire... I give up! Link to post Share on other sites
Got Wood? Posted August 21, 2015 Report Share Posted August 21, 2015 Not one in the midlands but I know a guy who's very good. May be able to help Link to post Share on other sites
harborne blue Posted August 21, 2015 Author Report Share Posted August 21, 2015 Not one in the midlands but I know a guy who's very good. May be able to help If you could put me in touch with your pal I'd be very grateful. Link to post Share on other sites
garry Posted August 28, 2015 Report Share Posted August 28, 2015 Any update? Link to post Share on other sites
harborne blue Posted August 30, 2015 Author Report Share Posted August 30, 2015 Not at the moment - GWs pal hasn't been in touch and I have not had the time to try anything else major. I now reckon something has gone wrong in the firing mech and the metal kit is fine. The knocker just will not hit the valve hard / square enough to fire. Link to post Share on other sites
garry Posted August 31, 2015 Report Share Posted August 31, 2015 Send it to me if you like. I'm off this week and will have a look. Link to post Share on other sites
harborne blue Posted November 2, 2015 Author Report Share Posted November 2, 2015 I wanted to say thanks for all the help with this one guys as I'VE ONLY GONE AND BLOOMING WELL SORTED IT! Having tried all the fixes above, I just when mad and ordered steel replacements for all the external gubbins and it turned out to be the mag release! I'd tried two from my other 1911s and they made no difference but a creation steel one seems to have fixed it. I also took out the hi-flow mag valves I'd fitted as the springs in these were stupidly hard and would not work in 2/3 other 1911s. Now in the process of fitting it all back together as I didn't like the new trigger and the steel hammer needs fettling to cycle smoothly. Pics WILL be up soon! Link to post Share on other sites
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