Hangtight Posted July 27, 2017 Share Posted July 27, 2017 If it's any consolation my CQB gun has just been apart and together three times after it broke a tappet plate then went from 325fps to 50fps in four shots for no apparent reason after the bust bit was replaced. But you do get good at taking the bloody things apart and putting them back together after the fifth or sixth time... Link to comment Share on other sites More sharing options...
ProPain87 Posted July 30, 2017 Author Share Posted July 30, 2017 So used the gun today working fine no issues all day, quieter than before so happy with that so just need to up the fps a little as it was around 295-300 and will probably flat hop it too Link to comment Share on other sites More sharing options...
Hangtight Posted July 30, 2017 Share Posted July 30, 2017 Found my lost fps. SHS tappet plate +SHS sector delay chip =150fps going missing. Glad yours is working OK. Link to comment Share on other sites More sharing options...
ProPain87 Posted July 30, 2017 Author Share Posted July 30, 2017 So what's that from? faulty parts or not very well matching to the rest of your gearbox? Have you fixed it Link to comment Share on other sites More sharing options...
Hangtight Posted July 31, 2017 Share Posted July 31, 2017 It worked fine with the JG tappet plate, but not with the SHS one. So now I've got a spare sector chip sitting in the 'tub of gub'. Once I took it out everything worked fine again. Link to comment Share on other sites More sharing options...
Supporters Sitting Duck Posted July 31, 2017 Supporters Share Posted July 31, 2017 SHS tappet plates are quite thick at the front where nozzle fits They are about 2.55mm to 2.60mm PLUS if you look really carefully you see the ridge on which nozzle sits it off center towards the back Other tappets are 2.0mm hard plastic like SRC Or 2.25mm thickness I sand the front of SHS tappet plate down to near 2.0mm This may not seem a big deal - but it is the difference of a nozzle sealing properly or just lightly on bucking Too light seal and the lips will blow under pressure when firing = fps loss SHS tappets are still good and they do seem to retract a tiny bit more which means better feeding Must check tappet doesn't bottom out on cylinder head at full retraction in some builds Due to these slight differences that can effect all sorts of stuff hence check EVERYTHING you replace tappet - nozzle length especially and how crap all fits together - operating as smooth as silk etc... Think we are all still learning new crap with every box we do - I know I am Link to comment Share on other sites More sharing options...
Hangtight Posted July 31, 2017 Share Posted July 31, 2017 I sand the front of SHS tappet plates as a matter of course, and I've had a couple of occasions when they won't retract quite far enough to stop the sector lug chewing up the fin. Bloody toy guns.... Link to comment Share on other sites More sharing options...
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