TKOverKill

yeah no rush just next time you do a parts order you can order order a pack of shims prom promy or systema and then you can re do all the shims with shiny new ones which you know the sizes of..

It's sad but it is still locking up!

Something wrong and I can't understand what exactly. Now it can fire 5 times and lockup or it can fire 50 times and lockup.
And I found that it can fire for more long time without front set installed (only gearbox in external body).
I so frustrated so I even don't have a word to expess it.

hmm i think if you got rid of most of the lockup, but the shimming is still an issue just expidite the new shiming procedure to now rather than later. get that done, theres soooo many guides on how to shim on the internet its not even worth us going through it.

have you checked the air nozzle the make sure the notch out of the tip is facing down ? it wouldnt make a difference i just love pointing it out

As I said before, if the gears stopped turning at some point in the cycle, it will not turn with a less-than-fully-charged battery.

Whatever you do, DON'T change the bushings.

why no change the bushings ? Im running the promy bearings in mine they have been running a treat for 7 months now?

(28-08-2009 03:50 PM)Hazard Wrote: [ -> ]As I said before, if the gears stopped turning at some point in the cycle, it will not turn with a less-than-fully-charged battery.

Whatever you do, DON'T change the bushings.

I think you're right, then bat is just from charger the gun work fine, but not so long as it must.
In this way I need bigger bat or stronger motor (more powerfull gears are not presented on the market at all).
But it even lock's on standard spring and it makes my brain blown away.
And most important thing is that it began locking after I disassenmbled it and installed ONLY promy spring guide! How this could be possible?

Air nozzle notch is facing down definetly!

(28-08-2009 05:58 PM)Richard Wrote: [ -> ]why no change the bushings ? Im running the promy bearings in mine they have been running a treat for 7 months now?

That's curious. How were you able to fit the bearings to the shafts? Stock Tokyo Marui gears have slightly larger shafts than aftermarket gears, meaning the use of bearings is almost impossible.

In any case, I used Prometheus bushings in mine, and it isn't without problems. First, the holes where the bushings will go are smaller than any AEG before the SOPMOD. Without using considerable force, setting the bushings are impossible. Next, the bushings are taller than the stock bushings. When I reassembled the gun right after installing the bushings and doing the requisite shimming, the selector lever would not turn. Forcing it will damage the lever permanently. Because of this I had to modify a King Arms selector lever - not without filing down the bushing considerably.

voodoo you serious need to use the standard tm spring guide not the promy one. Get rid of it its not working. Go back to standard. Hazard, cant believe you had to go through all that mine installed straight away no messing about. Dont get me wrong its a tight fit on the shafts but would you rather it be loose and the bearings have no effect ? The trick is push them in hard to the casing applying even pressure to the bearing so as not to cause damage. Then the same pushing the gears into place. Use a little bearing grease as well.

voodoo, can you count how many coils there are on your cut down spring. Also you need to go back to using the standard tm spring guide!. Hazard. I just installed like normal bit of pressure to get them in, even pressure to avoid bearing damage etc.. It was tight but its better performance that way. Ill post pics when im not on my phone.

(28-08-2009 09:37 PM)Richard Wrote: [ -> ]voodoo, can you count how many coils there are on your cut down spring. Also you need to go back to using the standard tm spring guide!. Hazard. I just installed like normal bit of pressure to get them in, even pressure to avoid bearing damage etc.. It was tight but its better performance that way. Ill post pics when im not on my phone.

Why use tm spring guide? It is no matter wich guide installed, the result is the same - lockup.

you said it all happened when the only thing you change was the spring guide but you also changed the piston head as well which is a big change and spring. The idea is to get it back to normal and working then change stuff. How many coils on the cut spring?

(28-08-2009 11:48 PM)Richard Wrote: [ -> ]you said it all happened when the only thing you change was the spring guide but you also changed the piston head as well which is a big change and spring. The idea is to get it back to normal and working then change stuff. How many coils on the cut spring?

Cuted spring has 22 coils. It is linear type spring.
As I understand how things going - lockups caused by moving parts like gears , but I didn't touched them.
Now I noticed that gearbox work more easy with tm spring but after working for some time it locks. I think that powerfull bat or powerfull motor could solve the problem. But it is not possible to obtain them for testing.
I suppose that people with same setup are used more stronger bat and no one uses std battery.

(29-08-2009 12:38 AM)Goon Wrote: [ -> ]Not that I know much about it, but did you alter the height of the motor when you took the rifle apart? If the pinion gear is too tight against the bevel gear then the motor will struggle and could lock up, and it wouldn't matter what else you changed in the gearbox.

Just a thought...

Goon.

This was checked. It is OK.

Theres no more powerfull motor we have the coolest motors, they are tms hi torque motors you cant even buy them on there own only with the sopmods.. and battery wise you should be able to power the gun fine with std 8.4 batterys even with mods.

it has to be shimming killing your battery life. to the point it locks up.

with regards the spring coils are important, as there reaches a point when the spring is fully compressed in the gun. count the coils thats the distance it wont compress any more then that if the spring has too many coils the piston wont go back far enough and get stuck. This also plays a role with regards piston heads and spring guides when you add a bearing spring guide its MUCH thicker in length than the standard spring guide.. becuase of the bearings it actually removes half a cm of length in the gearbox thats basically 4 coils. you get me ? same with a "bearing" piston head the bearing adds yet an other half cm! this is why people sometimes see power increases from fitting some spring guides and piston heads. becuase theres less room for the spring to compress its like adding washers to increase power. IF you are boarder line with the amount of room, you could get periodic lock ups as some times times it would clear sometimes it would jam. mine has 20 coils on my cut down spring that said a standard tm spring has 22 coils.. but then im running standard tm parts ... with an ms120 cut to length. soon to be replaced by an "eagle 6" proper length sopmod spring

but my moneys on the shimming something happened to the shims when you went in the first time it doesnt sound right to me.. maybe you lost one maybe you replaced one that was too thick etc, pack of systema shims is like 2 dollars i think. monies well spent

picture of the spring cut to length in mine



hazard

some piccys of the promy bearings installed