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View Full Version : Problems with an norinco mak 90


416stroker
04-30-2008, 9:56 AM
Its registerd dont worry. The gun started to do this recently. when you pull the trigger it dumps the full mag. And sometimes it fires and then chaimbers the next round but the hammer isnt reseting or somthing because it wont fire unless you rack it. think it just needs new springs? or could somthing be installed wrong?

double_action
04-30-2008, 10:26 AM
You need to replace the disconnector spring. It sounds like the disconnector isn't grabbing the hammer and it's slam firing. Bad and unsafe. Fix it before you shoot it again.

416stroker
04-30-2008, 10:39 AM
You need to replace the disconnector spring. It sounds like the disconnector isn't grabbing the hammer and it's slam firing. Bad and unsafe. Fix it before you shoot it again.

OK thanks... ya it dangerious. It scared the crap out of me when it dumped the whole 30 rounder. wasnt ready for that. Im gonna order one tonight.

thefinger
04-30-2008, 12:50 PM
until you get it fixed, DISASSEMBLE IT! Technically your rifle is in an illegal configuration since it is FULL AUTO. I know it might sound paranoid, but I saw on the news some guy is getting prosecuted for having a rifle malfunction like you describe. better safe than sorry. good luck with the fix.;)

Builder
04-30-2008, 1:24 PM
double action's explaination sounds correct. When the bolt carrier is pushed back with the gas in the gas tube, it rides up over the hammer. Sometimes it rides up too high and doesn't press down on the hammer enough for it to be caught by the disconnector and the hammer follows the carrier back as it chambers a new round.
You can check this. First empty the AK. Check it again. Pull the trigger and keep holding it as you are lifting the bolt carrier up away and pulling it back over the hammer. You should see and hear the hammer catch on the disconnector. If not, then it's not the spring and there is an alignment problem. You should also try this test with the trigger pulled but not all the way back. Just release the hammer but don't keep pulling the trigger all the way back. This partial position keeps the disconnector further away from the hammer so it is more difficult for the disconnector to catch the hammer especially when the bolt carrier rides high in the receiver rails.
If the disconnector isn't catching, then the disconnector needs to be ground to catch the hammer or the rails for the bolt carrier need to be adjusted. There are 2 places to grind the disconnector but first get back to us with the results of the test.
Thanks,
Builder