Help needed.....New VXL System

[uh60]

Like many others I could not leave well enough alone and decided to hop up my Slash. I ordered the VXL motor and speed control package. I installed it into the slash per the instructions. I ran it last night with a Max Amps 7.4V 5000mah Lipo battery, and had a blast. The truck was running great and fast throwing up huge rooster tails from the rear wheels. After running the battery down I noticed the motor was hot and the speed controll was only warm. I don't know how hot the motor was because I do not have a temp gauge but it was too hot to hold your finger on it for more than a second. I am running the stock gearing 86 tooth spur and 18 tooth pinion. I let the motor cool overnight and tried running it this morning with a duratrax 8.4V 4600mah NIMH battery. At first the truck would only go a short distance and go into low voltage protection. I dissabled the low voltage protection and was able to run the truck but it ran slower than it did with the stock 12T titan motor. I thought it might be the battery so I went to back to the Lipo battery that was freshly charged. I put back on the low voltage protection. And the same thing happened the truck would go a short distance and go into low voltage protection. I disabled the voltage protection and tried again. This time the truck would run but not nearly as fast as it did the pervious day, and still slower than the stock configuration with the 12T titan motor.



I tried multiple batterys, reprograming the speed control to the transmitter and check the different mode ( sport, race and training). I checked all the connections to the motor and the battery. I read the manual a couple of times and still can't figure out what I did or what changed from the other day to lose performance.



Did I ruin the motor by letting it get too hot the first time? If the motor did get too hot do they just stop working?



Thanks so much for your help in advance I am at a loss here and want to get back to throwing those huge rooster tails of dirt.

[agosboy]

wow thats weird I just orders one and now your making me worry the only thing I can think is that you over heated the motor but I have no idea

[slasherfred]

Dec 4, 2008 18:29:49 GMT -5 agosboy said:

wow thats weird I just orders one and now your making me worry the only thing I can think is that you over heated the motor but I have no idea

Hmmm, I run a dual VXL system in my E-Revo with absolutely no problems. I also ran one of them in my Slash with no issues....not sure in your case...

[drilldeep]

take it to your lhs, let them see it run. maybe they can see something we are missing since it will be in person.

[william]

check the program/on-off button
it might be sticking
mine did something just like that, So I opened it up, and drilled the button hole slightly larger and that fixed it.
I would run it, act fine then go into training mode. Unplug batt, try again and same thing.
After drilling the button hole a hair larger it has been awesome.

[Rob #28]

I had the same problem, there's an o-ring around the button that was causing it to stick. Added a little shock oil around the o-ring and its been working fine since.

[uh60]

Would a sticking program button cause the esc to trip into low voltage protection? I wish I could take it to a local hobby store but I am deployed to Iraq, and can only get my supplies through the mail. I emailed traxxas support, and they told me to check the adjustment of the slipper clutch. I can't hear the clutch slipping and I don't hear the motor revving excessively either.

I will check and clean the area around the button and let you guys know.

[uh60]

Ok I think I am making the problem worse. I cleaned the area around the program button and set up the esc again. and made sure it wasn't in the training mode. I hooked up a 7c nimh battery 4600mah freshly charged battery with the low voltage disabled, and now the motor wont start on its own without pushing it first and the motor has very low rpm and torque. I also tried hooking up the stock 12T motor to the vxl esc and the motor wouldn't even turn over. I made sure the wires were correct per the manual.