Ecx torment 2wd drive transmission

Sershan

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Hi guys looking for some help, idler gear keeps stripping not sure whats going on been through 2 gears already 1000067335.jpg
 
Hi, thanks for the reply. Nah I'm only running on tarmac just put the metal gear upgrades for about a month. And running on 2s only I did change the motor up to a 5200kv can that be the cause, overpowered?
 
Have you looked at the other gears to see if they have worn funny?
I am running 3s with a brushless motor and I have not stripped any idler gears.
knock on wood......
 
I just opened it up again, found that that 25t gear also stripped a tooth. Looks like the axial 10 idler is not going to do it.
 
I just opened it up again, found that that 25t gear also stripped a tooth. Looks like the axial 10 idler is not going to do it.

Check the plastic case (the trans housing). Especially where the pins for the gears go and the bearing. Take the gears completely off and put just the pins in the housing and check for play. Check for any play in the bearings.

Under power, the gears will tend to want to spread apart from each other. Only the pins and the bearings prevent that. If there is any play, they will be allowed to spread and you lose contact surface area on the gear teeth, which causes them to break off the ends. Similar to when backlash or pinion depth is off when you set up a rear diff.
 

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