Help. Gearbox keeps jamming!

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Help. Gearbox keeps jamming!

Postby binicb2r » Sun Apr 10, 2011 2:28 pm

After rebuilding the gearbox (v3 jg g36c ) for the n^? time it's still jamming when the piston is fully back just before the gear releases it. It's all stock stuff except the piston that was replaced a while back. The gears spin very freely and it's been cleaned out and re greased and lubed.

I'm running my stock 8.4 but I would cycle with my 2cell lipo that I do not run in the gun, it's got a 100amp cont discharge.


Any ideas?
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Postby Hutch » Sun Apr 10, 2011 3:22 pm

This happened to a friend of mine's m16. He took it in to get repaired at AirsoftOutletnw. They fixed it for about $30
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Postby pseudoanimosity » Sun Apr 10, 2011 4:38 pm

it's probably the battery, if by "stock" you mean it came with your gun, it's a POS. Get a better battery, or borrow a friend's to test it out.
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Postby Cap n pickles » Sun Apr 10, 2011 4:48 pm

If its cycling with the 2cell (7.4v battery, LIPO) then that means you 8.4v is a POS.

buy a lipo for it.
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Postby Jester316 » Sun Apr 10, 2011 4:52 pm

Or a good quality 9.6v NIMH. I had to go back to NIMH because my lipo cycles to fast for the tappet plate to load properly...
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Postby binicb2r » Sun Apr 10, 2011 5:31 pm

Cap n pickles wrote:If its cycling with the 2cell (7.4v battery, LIPO) then that means you 8.4v is a POS.

buy a lipo for it.


I guess just saying it cycles on a 2s lipo isn't fair. My 2s is a 5000mAh 20c. It'll probably cycle anything short of a car.

It is the pos battery that came with the gun, then again, that's all we run around here. I guess I could have just died between the last game and now.

I'm going to try to scroung up a different battery until I can get a relatively sane lipo small enough for my gun.
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Postby Jester316 » Sun Apr 10, 2011 6:02 pm

Try charging the battery...
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Postby binicb2r » Sun Apr 10, 2011 8:47 pm

Jester316 wrote:Try charging the battery...


HAHA! good idea. i didnt think of that till i posted.

the issues was a shim that i put in the wrong place and was seizing up.
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Postby Jester316 » Sun Apr 10, 2011 8:49 pm

Dumb question: how do you put a shim in the wrong place?
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Postby pseudoanimosity » Sun Apr 10, 2011 8:55 pm

How do you put a shim in the wrong place as many times as you've ripped the gearbox apart?
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Postby Nec » Mon Apr 11, 2011 9:24 am

Jester316 wrote:Dumb question: how do you put a shim in the wrong place?
When your putting the gearbox shells together, the gears don't always line up with the bushings and sometimes takes some poking around with a small screw driver or dental pick in order to get the gears where thet should be. All this moving around can knock a shim off the top of a gear, land on the teeth and next thing you know it's jamming the gearbox.
There's a difference between a person who has a screwdriver and a person who knows what they are doing.
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Postby binicb2r » Mon Apr 11, 2011 12:58 pm

pseudoanimosity wrote:How do you put a shim in the wrong place as many times as you've ripped the gearbox apart?


By getting pissed off at it.
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