Well my marui m4 seems to be having timing problems. I at first thought it was a tappet plate cause I have had those go bad on me but yea. I pull it apart and figure I have had it for a year or so now and figure it would be a good time to check everything out with the upgrades and all inside. I have a 140% spring, with a silicon piston head with ball bearing and metal bushings... On inspection of everything, the gears are fine, anti latch is fine and can not find anything out of place or broke. I just put it all back together and fires fine for the first 5 shots then back to the timing issue. I watch the air nozzle and only on like every other or so times it goes all the way back to fire so it is not letting the bbs in all the time. I am using a 9.6v 1800 mah gonzo battery in it so its not battery issues ether and have had all the same stuff in there for a year now and no problems.
buy a new tappet plate and nozzle head or the part on the gear that sticks out to pull the tappet plate back could be worn down if its not metal...thats my guess. :?
...andy, please dont post unless you know exaclty what your talking about....
timing = a hoax, theres nothing to time in a gearbox. the gears all cut the same way so that the gearing always stays the same, look at all the gears. trust me youll see there is nothing to "time"
8017312 1
I looked at the tappet plate and it seemed worn just now and so I swaped it with my M16 tappet and still the same problem. Its not the spring... The spring is a pdi and is the same as say a m110... I can't figure it out at all I see nothing inside that would be wrong and I have been doing upgrades and stuff with ver 2 gear boxes for a while now. I did not try to swap the nozzle but I will try that. It does not look worn to me at all but I will try. When it fires the nozzle sits just a bit to far forward and don't know what could cause that.