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11-10-2010, 08:40 PM
| #1 |
| Rock Stacker Join Date: Nov 2004 Location: middle of nowhere
Posts: 93
|  rear motor issue
i have a custom super bully i am having issues with. the electronics are fxr speed control, tekin 55 turn motors, hitec 7950 servo, cc bec, punk rc dig, and modded tq3 for radio run by 6cell stick pack. the issue i am having is after a very short time of running manybe 5 trips crawling the rear motor lost its torqe and power. i switched power to motor from sc and same thing. i tried a run that stopped the rear going forward in reverse and front tires spin no problem. i spray my motors with electronic cleaner every few runs. what is causing this motor to lose power?
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11-10-2010, 08:49 PM
| #2 |
| Quarry Creeper Join Date: Oct 2006 Location: kansas city
Posts: 369
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You need to pull both motors and make sure there is no additional drag on the rear axle. Sounds like the motor is bogging down and getting hot. Also check that both motors are at 0 deg timing. Start there and get back with us.  Randy |
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11-10-2010, 08:50 PM
| #3 |
| I wanna be Dave  Join Date: Dec 2009 Location: San Francisco
Posts: 2,236
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Sounds like you may have some binding going on, either that or the punk dig is messed up. Can you spin the tires by hand? What about with the motor off? If you disconnect the motor does it spin when you hit the throttle? |
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11-10-2010, 09:55 PM
| #4 |
| Rock Stacker Join Date: Nov 2004 Location: middle of nowhere
Posts: 93
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i just replaced some bearings in my front gearcase and checked the rear. i had better check the tube screws to make sure they aren,t in the gears. as for the dig i checked it and its ok. ill also check the timing. thanks and keep the input coming.
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