busdennis Posted February 26, 2010 Report Share Posted February 26, 2010 over the last few months my tekneys has started jamming and its recently got a lot worse. it has never failed to spit out the spent cartridge case but dosent feed the new shell in straight, it just needs a little flick to help on its way and away we go again. i clean the gun everytime i use it and its happening with different makes of cartridges ideas please Quote Link to comment Share on other sites More sharing options...
markm Posted February 26, 2010 Report Share Posted February 26, 2010 when you say clean, do you mean a quick general clean or a full strip down as per the instructions manual. Seems like a port / piston problem and probably blocked. Quote Link to comment Share on other sites More sharing options...
Beardo Posted February 26, 2010 Report Share Posted February 26, 2010 yeah definitely sounds like a gas port blockage... see this.... http://www.shotgunworld.com/bbs/viewtopic.php?t=101242 Quote Link to comment Share on other sites More sharing options...
busdennis Posted February 26, 2010 Author Report Share Posted February 26, 2010 when you say clean, do you mean a quick general clean or a full strip down as per the instructions manual. Seems like a port / piston problem and probably blocked. clean it the same as our american friend Quote Link to comment Share on other sites More sharing options...
ollie Posted February 26, 2010 Report Share Posted February 26, 2010 I have had my Tekny's 5 years now and never have had one jam. I give mine a good clean everytime I go shooting, no matter how many shots have been fired. Quote Link to comment Share on other sites More sharing options...
markm Posted February 26, 2010 Report Share Posted February 26, 2010 clean it the same as our american friend Howdy cowboy, put the trash out and then lets hit the mall for a bud and fries. Am I your american friend ***? Quote Link to comment Share on other sites More sharing options...
milo2005 Posted February 26, 2010 Report Share Posted February 26, 2010 what you using fiber wads? Quote Link to comment Share on other sites More sharing options...
Dekers Posted February 26, 2010 Report Share Posted February 26, 2010 If it has been working fine and this has slowly developed I would certainly suggest a FULL STRIP and clean before you start getting concerned at anything more serious!! Take a look at the rediculously involved manual, and once you have worked your way past all the safety notes, you will find full details...and if you have lost the manual they are available to download on Berettas website!! One thing to note, but you are probably already aware, DO NOT over oil/grease moving parts, the mearest hint is all you need after a clean!! Seems strange but TOO MUCH oil on a semi is likely to cause jams!! ATB!! Quote Link to comment Share on other sites More sharing options...
busdennis Posted February 27, 2010 Author Report Share Posted February 27, 2010 clean it the same as our american friend forgot the link like a big **** Quote Link to comment Share on other sites More sharing options...
busdennis Posted February 27, 2010 Author Report Share Posted February 27, 2010 what you using fiber wads? plastice and fibre. 28s 30s and 32s Quote Link to comment Share on other sites More sharing options...
sitsinhedges Posted February 27, 2010 Report Share Posted February 27, 2010 I would have thought it was more a shell lifter issue than a gas port one if it is ejecting empties OK. Is the shell lifter spring OK Quote Link to comment Share on other sites More sharing options...
Robbly Posted February 27, 2010 Report Share Posted February 27, 2010 If it has been working fine and this has slowly developed I would certainly suggest a FULL STRIP and clean before you start getting concerned at anything more serious!! Take a look at the rediculously involved manual, and once you have worked your way past all the safety notes, you will find full details...and if you have lost the manual they are available to download on Berettas website!! One thing to note, but you are probably already aware, DO NOT over oil/grease moving parts, the mearest hint is all you need after a clean!! Seems strange but TOO MUCH oil on a semi is likely to cause jams!! ATB!! As above....after cleaning spray oil on then wipe it off. I experimented with lots of oil in my Technys the other week and it failed to cycle every other shot, stripped it and wiped off as much oil as i could and it worked ok again. It can be worrying because the symptom is the same as a bent carrier ... Quote Link to comment Share on other sites More sharing options...
VicW Posted February 27, 2010 Report Share Posted February 27, 2010 Dennis, Is the second cartridge being lifted by the carrier,fed towards the breech but jams on the breech face at about the one or two o'clock position? Does just easing the bolt back slightly or just touching the cartridge then feed the cartridge? If the gun has ejected the first shell and started to feed the second then it's not a gas port problem because the gun has almost cycled properly. If the problem is as I described then you may have a known problem that has been with the 391 series almost since introduction.The cartridge lifter becomes twisted and lifts the cartridge towards the upper right face of the breech where it jams. Is this your problem? Vic. Quote Link to comment Share on other sites More sharing options...
busdennis Posted February 27, 2010 Author Report Share Posted February 27, 2010 Dennis, Is the second cartridge being lifted by the carrier,fed towards the breech but jams on the breech face at about the one or two o'clock position? Does just easing the bolt back slightly or just touching the cartridge then feed the cartridge? If the gun has ejected the first shell and started to feed the second then it's not a gas port problem because the gun has almost cycled properly. If the problem is as I described then you may have a known problem that has been with the 391 series almost since introduction.The cartridge lifter becomes twisted and lifts the cartridge towards the upper right face of the breech where it jams. Is this your problem? Vic. spot on my friend Quote Link to comment Share on other sites More sharing options...
Robbly Posted February 27, 2010 Report Share Posted February 27, 2010 Your talking about bent carrier syndrome.....like I said, check for excessive oil first,the carrier won't suddenly become bent. Quote Link to comment Share on other sites More sharing options...
Dekers Posted February 27, 2010 Report Share Posted February 27, 2010 Dennis, Is the second cartridge being lifted by the carrier,fed towards the breech but jams on the breech face at about the one or two o'clock position? Does just easing the bolt back slightly or just touching the cartridge then feed the cartridge? If the gun has ejected the first shell and started to feed the second then it's not a gas port problem because the gun has almost cycled properly. If the problem is as I described then you may have a known problem that has been with the 391 series almost since introduction.The cartridge lifter becomes twisted and lifts the cartridge towards the upper right face of the breech where it jams. Is this your problem? Vic. Just what is this known problem...I have a 391, best part of 10 years old now, never caused me any issues and I've never come across this "known problem" either. I'd appreciate you filling me in on the details so I can keep an eye on things!! Cheers Quote Link to comment Share on other sites More sharing options...
VicW Posted February 27, 2010 Report Share Posted February 27, 2010 Dennis, Dekkers and Robbly, The twisted,not bent,carrier problem does not affect all 391's,only a few of them.Also the gun can have had several thousand cartridges through it before it manifests it self. The carrier twists so that the front,right corner of the carrier is lower than the left hence lifting the round into the top right corner of the breech face where it jams. There are two ways to fix it.You can replace the carrier by one from a 390,which is a different shape at the forward end and doesn't suffer from the twisting problem.I have done this to one 391. The other way is to twist the carrier back and remove the twist.I have done this to my present 391,which was jamming 50% of the time and now hasn't jammed for over 5K cartridges. Go to this link and follow it through you will see the twisting technique explained. http://www.shotgunworld.com/bbs/viewtopic....731041#p1731041 The problem is more prevalent in the US because they have more 391's sold.It is believed that Briley use the twisting method now to cure the problem. Vic. Quote Link to comment Share on other sites More sharing options...
Dekers Posted February 27, 2010 Report Share Posted February 27, 2010 Dennis, Dekkers and Robbly, The twisted,not bent,carrier problem does not affect all 391's,only a few of them.Also the gun can have had several thousand cartridges through it before it manifests it self. The carrier twists so that the front,right corner of the carrier is lower than the left hence lifting the round into the top right corner of the breech face where it jams.There are two ways to fix it.You can replace the carrier by one from a 390,which is a different shape at the forward end and doesn't suffer from the twisting problem.I have done this to one 391. The other way is to twist the carrier back and remove the twist.I have done this to my present 391,which was jamming 50% of the time and now hasn't jammed for over 5K cartridges. Go to this link and follow it through you will see the twisting technique explained. http://www.shotgunworld.com/bbs/viewtopic....731041#p1731041 The problem is more prevalent in the US because they have more 391's sold.It is believed that Briley use the twisting method now to cure the problem. Vic. Quote Link to comment Share on other sites More sharing options...
busdennis Posted February 28, 2010 Author Report Share Posted February 28, 2010 how much is a new carrier if i brake mine when messing tommorow Quote Link to comment Share on other sites More sharing options...
VicW Posted February 28, 2010 Report Share Posted February 28, 2010 Dennis,, I have no idea,I got my replacement one from the US,I doubt GMK would even have one in stock. A tip about removing the trigger assembly. Never remove it unless the hammer is cocked and the safety is on.This puts tension on a very small pin that would otherwise fall out,never to be seen again! Before you put the carrier in the vice look at it from the front so that you will know if you have twisted it or not.The carrier is very springy so it feels like it hasn't moved,which is why I used the pointers idea to show that you have twisted it. I have fixed two guns with problem using this method,mine and a friends. Vic. Quote Link to comment Share on other sites More sharing options...
dale u Posted February 28, 2010 Report Share Posted February 28, 2010 how much is a new carrier if i brake mine when messing tommorow I had the same problem with mine When i checked the carrier had a slight twist. i contacted GMK who wanted me to send them the full gun under warranty to have it replaced. which would mean being without gun for 6 weeks or so. I priced a replacement up at local gun shop and it was only 28 Quid so I ordered one and it took about 4 weeks to come. so I used the gun until I could fit the replacement . Quote Link to comment Share on other sites More sharing options...
Dickiebig Posted March 5, 2010 Report Share Posted March 5, 2010 (edited) I have also had this problem. The old carrier, when removed from the gun, would wobble around when placed on a flat surface. I replaced this one with one from a 390 and have not had a problem since. It will even cycle 21g cartridges with no fuss what so ever. I hope this helps and you are able to sort your problem. ATB Dickie. Edited March 5, 2010 by Dickiebig Quote Link to comment Share on other sites More sharing options...
Robbly Posted March 5, 2010 Report Share Posted March 5, 2010 Dennis, Dekkers and Robbly, The twisted,not bent,carrier problem does not affect all 391's,only a few of them.Also the gun can have had several thousand cartridges through it before it manifests it self. The carrier twists so that the front,right corner of the carrier is lower than the left hence lifting the round into the top right corner of the breech face where it jams.There are two ways to fix it.You can replace the carrier by one from a 390,which is a different shape at the forward end and doesn't suffer from the twisting problem.I have done this to one 391. The other way is to twist the carrier back and remove the twist.I have done this to my present 391,which was jamming 50% of the time and now hasn't jammed for over 5K cartridges. Go to this link and follow it through you will see the twisting technique explained. http://www.shotgunworld.com/bbs/viewtopic....731041#p1731041 The problem is more prevalent in the US because they have more 391's sold.It is believed that Briley use the twisting method now to cure the problem. Vic. I agree totally......but I'd still check for excessive oil first Quote Link to comment Share on other sites More sharing options...
busdennis Posted March 7, 2010 Author Report Share Posted March 7, 2010 (edited) i had cleaned all the oil out and reassemble try with no improvment so did the "bending the cartridge carrier" thing. so far 30 sporting and 25 skeet with no problem at all. shootings not improved though Edited March 7, 2010 by busdennis Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.