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Posted: 5/21/2008 12:45:06 PM EDT
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Hey guys, Last night i finished putting together my build. Everything went together as it should and it looks great! Im very happy with my first build with the exception of one problem. Sometimes when you cycle the action of the gun (pulling the bolt carrier all the way back, and release it), the top cover pops off upon impact. Is this because i used too much gun oil and its just slick or is there something wrong with my receiver or trunions? Sometimes it happens, sometimes not. When i test fit the cover on the receiver, it looks great and locks in place.. Is this popping off just something that happens now and then? |
| you can take the cover off and at the back,where the release button hole is,put it on a flat surface and bend the lower back edge out a little.this will stretch the back of the cover out to fill the gap at the front in the sight block and trunion.it stretches the cover. |
No  I sure didnt test fit before i riveted the rear tunion. Man, it seems i made alot of newbie mistakes. Anyway, here are some pictures... The first one shows how the receiver cover fits into the grove on the sight block... seems fine there...  The next shows the cover on, but the bolt carrier spring button doeset come through the cover very much, infact, i think just the very bottom hair of the button is pushing against the cover back wall...  Lastly, a pic of the cover off..  Please ignore the metal finish... im uh... trying something else. Im going to cold blue it later... Also, sorry about the quality of these images, i know they suck.. they are from my phone. |
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With the cover off, is the recoil spring guide all the way against the "lip" on the stock block? It looks like it is, but I can't be sure. If it is, I THINK the problem is that the cover is too high, because it APPEARS to be sitting on the rivet. The recoil spring guide MAY be binding on the bottom of the hole in the top cover. IF that is the problem, you could file (not dremel) a little off the bottom of the hole in the cover, so the spring guide will move all the way back. Alternatively, you could file small half moons in the edges of the cover where the cover hits the top rivet. If you file the cover, go slow, check frequently, and don't take off more than you have to. If the cover is NOT sitting on the rivet, you could spread the cover slightly. However, before you do so, you should make sure that the receiver is riveted tightly to the stock block. Don't fit the cover to an improperly riveted receiver. |
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Thanks P I'll give that a try. And yes, you are correct, the recoil spring guide is all the way against the "lip" of the stock block. I think your right about the cover being too high to not allow the button to go through the hole...completely... Hopefully light filing will solve this. Although its tough to tell in the picture, there is space between the top cover and the rivets that it comes close too... its close, but not touching. Thanks again. On a side note... do you notice the space between the wood stock and the reciever? Is a very small gap that only appeared after i tighted the trunion screws.. anyway to "sintch up" that gap? |
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Check my post again. I edited it concerning the solution to the top cover problem. I don't think the Romanians worried about that gap between the stock and the receiver. I don't think there's a practical way to eliminate it. If the tang is against the back of the slot in the stock you'd have to cut the slot for the tang longer, drill out the screw holes and plug them and drill new screw holes. If the tang is not all the way back in the slot, you'd have to plug the screw holes and redrill. |
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I had this exact same problem with a Yugo AK build once before Your push button end on the recoil spring is just slightly higher that the normal clearance to fit into the dust cover Use a dremel and sparingly shave off the bottom of the push cover end on the recoil assembly and test fit as you go. This problem is attributed to the slightly looser tolearances the AK47 platform has Whatever you do DO NOT WORK ON THE DUST COVER |
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I can't see that it makes any difference which part you file, which is why I asked what dire consequences would befall you if you filed the hole in the cover. It seems to me that it would be easier to file the hole. ETA: It appears to me that the other poster's diagnosis (the spring guide is too high) is wrong. It looks to me that the cover is too high. |
| Before you start filing anything try hitting the top of the back of the cover with the palm of your hand. That may "urge" the cover down enough to allow the guide to pop all the way back. If slapping it once or twice isn't enough, you'll have to file something but it's worth a try. |
The dust cover is not the cause of the clearance issue. And as for the consequences that befall - No need to take off any more metal than needed to correct the problem. |
Well, if you look at the picture the cover is obviously too high, it's not sitting on the "ledge" in the stock block. He confirms this, and the rifle is in his hands. The cover should be in contact with the stock block. Further, I don't see what difference it makes if he files the bottom of the hole in the cover or the bottom of the button on the guide. Finally, it's easier to limit the amount of metal removed when hand filing the hole in the cover than it is to limit the amount of metal removed when using a dremel on the guide. If there is some reason that I can't see for filing the guide rather than the hole, please elaborate for his benefit and mine. |
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