MM Posted March 12, 2012 Report Share Posted March 12, 2012 Ok, so i took the Cometa out yesterday to zero the scope, and the thing has a fault. When i cock the gun, its as if the holding catch is sliping and the gun will fire. Something just isnt fitting right. Is there anybody in the area to me who is a dab hand with springers and related issues? Would love somebody to come to my aid :good: Quote Link to comment Share on other sites More sharing options...
kent Posted March 13, 2012 Report Share Posted March 13, 2012 Not sure from your desciption. Sounds like the sear is not engaging, the trigger might be adjusted incorrectly in the case of an adjustable trigger gun tighten it up again Quote Link to comment Share on other sites More sharing options...
Wharf Rat Posted March 13, 2012 Report Share Posted March 13, 2012 Is the arm that pushes the piston back worn/damaged at the end? The more closed the action becomes, the flatter it lays = the more the worn portion may slip. Check your stock for tightness also, it may act as a guide for the cocking arm = looseness = excess movement. Quote Link to comment Share on other sites More sharing options...
MM Posted March 13, 2012 Author Report Share Posted March 13, 2012 Not sure from your desciption. Sounds like the sear is not engaging, the trigger might be adjusted incorrectly in the case of an adjustable trigger gun tighten it up again Not sure if the trigger is adjustable, its just held in by a center pin. Is the arm that pushes the piston back worn/damaged at the end? The more closed the action becomes, the flatter it lays = the more the worn portion may slip. Check your stock for tightness also, it may act as a guide for the cocking arm = looseness = excess movement. the arm looks good. also, its tight in the stock. im leaning more towards the sear thing. PLEASE SOMEONE HELP ME!!! Quote Link to comment Share on other sites More sharing options...
FalconFN Posted March 13, 2012 Report Share Posted March 13, 2012 Have you replaced the spring recently? If so the spring may be too long so it is fully compressed before it cocks properly - happened to me once and had to cut some off before it would work. Quote Link to comment Share on other sites More sharing options...
MM Posted March 13, 2012 Author Report Share Posted March 13, 2012 Have you replaced the spring recently? If so the spring may be too long so it is fully compressed before it cocks properly - happened to me once and had to cut some off before it would work. its the same spring mate, just polished the bottom of the last circle. Quote Link to comment Share on other sites More sharing options...
FalconFN Posted March 13, 2012 Report Share Posted March 13, 2012 its the same spring mate, just polished the bottom of the last circle. Maybe something is a little cock-eyed inside like the trigger housing - you may need to take it apart again to check. Quote Link to comment Share on other sites More sharing options...
bi9johnny Posted March 14, 2012 Report Share Posted March 14, 2012 I'm no expert but we got bit of a workshop if you want a second pair of eyes on it martin Quote Link to comment Share on other sites More sharing options...
andy draper Posted March 14, 2012 Report Share Posted March 14, 2012 http://www.gunspares.co.uk/shopdisplaycategories.asp?id=24033&cat=Cometa link to chambers site,you don't say which model it is,just click on your model and full breakdown of parts and prices of them come up.I have used these diagrams for stripdowns before and bought off them.I have a 300 in camo,there easy to work on,could be the trigger sear,just checked your gun list and it's a 300? if you strip it down give it a service as well just don't get the ox spring,watch the titan though it can put you over the 12 ftlb. andy Quote Link to comment Share on other sites More sharing options...
kent Posted March 14, 2012 Report Share Posted March 14, 2012 its the same spring mate, just polished the bottom of the last circle. So you took it in bits, thats usefull and relivent info. The sear is not engaging but why is the other matter, it could be any of the things persons here have suggested. Only way to know is check Quote Link to comment Share on other sites More sharing options...
will_2012 Posted March 14, 2012 Report Share Posted March 14, 2012 This happened to my 300 carbine it was the safety catch (Assuming they have kept the design the same this is on the back above the trigger)this was loose and not sitting in the safety or fire position properly (needed new spring and bb) and stopping the trigger from returning hope this helps Quote Link to comment Share on other sites More sharing options...
MM Posted March 14, 2012 Author Report Share Posted March 14, 2012 Maybe something is a little cock-eyed inside like the trigger housing - you may need to take it apart again to check. that looks like tonights project me thinks I'm no expert but we got bit of a workshop if you want a second pair of eyes on it martin If the above fails, then your going to be busy next week http://www.gunspares.co.uk/shopdisplaycategories.asp?id=24033&cat=Cometa link to chambers site,you don't say which model it is,just click on your model and full breakdown of parts and prices of them come up.I have used these diagrams for stripdowns before and bought off them.I have a 300 in camo,there easy to work on,could be the trigger sear,just checked your gun list and it's a 300? if you strip it down give it a service as well just don't get the ox spring,watch the titan though it can put you over the 12 ftlb. andy some good info on there mate, thanks. So you took it in bits, thats usefull and relivent info. The sear is not engaging but why is the other matter, it could be any of the things persons here have suggested. Only way to know is check No, it was whole when i got it and worked fine, but as with all these things, boys have to break them Ive stripped and checked a couple of times, but still no joy. Quote Link to comment Share on other sites More sharing options...
kent Posted March 14, 2012 Report Share Posted March 14, 2012 No, it was whole when i got it and worked fine, but as with all these things, boys have to break them Ive stripped and checked a couple of times, but still no joy. I might venture its wrongly assembled then Quote Link to comment Share on other sites More sharing options...
MM Posted March 14, 2012 Author Report Share Posted March 14, 2012 No, it was whole when i got it and worked fine, but as with all these things, boys have to break them Ive stripped and checked a couple of times, but still no joy. I might venture its wrongly assembled then and you would venture wrong think its sorted there is a small spring under the sear that sets the cocked piston in place. the spring is only in a small reccess, so i gave it a stretch of about 25%. this seems to have done the trick. the sear now raises up fully, and sets the cocked spring and piston in place. ive cocked it a few times, and kept hold of the barrel just to make sure its all working ok. ill take it out friday and post the results here. thanks to all those who made this possible, you have all been a great help Quote Link to comment Share on other sites More sharing options...
demonwolf444 Posted March 14, 2012 Report Share Posted March 14, 2012 i have one that wont catch either - its an old norica with a horrible varnish on it, going to strip the stock beacause beneith the varnish is some nice ish wood. I think its maybee the seer spring or something, as i have to point the gun down when i cock it, and then it apears to engage fine. Quote Link to comment Share on other sites More sharing options...
MM Posted March 14, 2012 Author Report Share Posted March 14, 2012 i have one that wont catch either - its an old norica with a horrible varnish on it, going to strip the stock beacause beneith the varnish is some nice ish wood. I think its maybee the seer spring or something, as i have to point the gun down when i cock it, and then it apears to engage fine. sounds like the same prob. just pull the spring open a bit and that might sort it. Quote Link to comment Share on other sites More sharing options...
kent Posted March 15, 2012 Report Share Posted March 15, 2012 sounds like the same prob. just pull the spring open a bit and that might sort it. Sounds like a silly trick, replace it or it might lead to an accident. Triggers are better left in the hands of the totally competant anyway, have you not just proved that you do not meet that criteria. Consider what might happen please in the event of an accidental discharge Quote Link to comment Share on other sites More sharing options...
MM Posted March 15, 2012 Author Report Share Posted March 15, 2012 (edited) Sounds like a silly trick, replace it or it might lead to an accident. Triggers are better left in the hands of the totally competant anyway, have you not just proved that you do not meet that criteria. Consider what might happen please in the event of an accidental discharge take a back seat pal! Edited March 15, 2012 by MM Quote Link to comment Share on other sites More sharing options...
kent Posted March 15, 2012 Report Share Posted March 15, 2012 take a back seat pal! Just think very carefully Quote Link to comment Share on other sites More sharing options...
demonwolf444 Posted March 25, 2012 Report Share Posted March 25, 2012 Just think very carefully im sure he does, people are very quick to jump the gun on these forums, i find it rather annoying. well i took it to the gunshop previously and it was fine, when i got it back it was like this after the first pellet, so im thinking something was loose, either way im not sure i can be ***** with it, it is of sentimental value, and will not group well enough to hit a tin can at ten yards, with iron sights or a scope, but i caught the bug with it soo ill keep it and use the stock to practice staining and oiling. Quote Link to comment Share on other sites More sharing options...
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