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Old 08-03-2004, 11:16 PM   #46
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Ive had the same problem. Add a computer fan and air duct. Works just fine
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Old 08-04-2004, 07:21 AM   #47
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Quote:
Originally posted by drifting
i do use the paper method. and that cant be the reson tnx tho
Maybe an easy fix.... You said you used motor lube and motor cleaner... Too much motor lube will cause arcing on the comm and fry motors/speed controllers. After using motor cleaner make sure you blow it out. Just a small it of motor lube and spin the armature by hand...

Does you battery get hot as well?
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Old 08-04-2004, 12:29 PM   #48
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I had a problem like this with my XXX-S. I bernt up 3 motors. What i found out was a wire was not soldered all the way on to the ESC. Part of the wire was cut and half of the wire was soldered on to the ESC. What you might want to check is that are the wires soldered well on the ESC and motor. Cause It might be shorting somewhere in the wire. If ou change all the wire to 12 guage wire and re- soldering the wires. What plugs are u running? Tamiya plugs or deans? If you're running tamiya plugs switch to dean connectors. Cause the tamiya plugs can handle the current that is going through the wire. I hope this helps. I know this help me now im not burning motors up.
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Old 09-24-2004, 04:34 AM   #49
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The melting point of 60/40 solder is 186C or 368F, so if the motor wires become loose after few runs....... that means the internal parts of the motor had hit way over 186C. wow !!!

I guess my motor temp could hit over 186C, but I installed battery bars to help coolling the motor post ( to minimize wire loose problem ).

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Old 09-29-2004, 07:38 PM   #50
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Those belts are excessively tight, you need to loosen them so that they have about 4mm of play to them. When you lift the bearings off the front belt, expect the chassis to flex back to normal. That alone will give you problems with overheating.

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Old 09-29-2004, 07:46 PM   #51
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Quote:
Originally posted by asw7576
[B]The melting point of 60/40 solder is 186C or 368F, so if the motor wires become loose after few runs....... that means the internal parts of the motor had hit way over 186C. wow !!!

I guess my motor temp could hit over 186C, but I installed battery bars to help coolling the motor post ( to minimize wire loose problem ).
Ditch the heatsink. The problem with those heatsinks is they don't completely surround the entire can and don't effectively give you any benefit when they don't. Also, if your motor gets excessively hot to melt the wiring off of it, tear it down and do a rebuild and check for black wire in the windings. That typically indicates a burnt winding which will add internal resistance (a lot of it) and can lead to a smoking motor or worse, your ESC if it's not protected against shorts.

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Old 10-01-2004, 01:03 PM   #52
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thanks losigramp, anyway it's too late Today I dismantled the motor and I'm done. Although the wires are okay, the intense heat had fried the commutator. The surface of commutator become uneven, infact it has deep groove caused from the brush. So today I learned these:
#1. never overgear the motor.
#2. buy lower turn motor if you want to go faster.
#3. If I'm too stingy to buy new motor, then go back to #1.
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Old 10-01-2004, 06:28 PM   #53
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Melting the comm??

Do you mean burning the comm?

Later EddieO
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Old 10-01-2004, 07:01 PM   #54
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My friend has a RS4 MT and he kept burning up motors due to a blown out wheel bearing. Check them if you haven't yet.
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Old 10-07-2004, 08:18 PM   #55
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Quote:
Originally posted by asw7576
thanks losigramp, anyway it's too late Today I dismantled the motor and I'm done. Although the wires are okay, the intense heat had fried the commutator. The surface of commutator become uneven, infact it has deep groove caused from the brush. So today I learned these:
#1. never overgear the motor.
#2. buy lower turn motor if you want to go faster.
#3. If I'm too stingy to buy new motor, then go back to #1.
What's the rest of the car look like (because I saw a TON of wire in there). Looks like you may have some more internal resistance that you could easily do without.

(Geez, 3 edits on this, can I typo tonight or what!)

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Old 10-08-2004, 05:44 PM   #56
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ive gotten stk motors over 200*f before, nothing im proud of but something i have done, and i have never had a wire come loose or anything? but thats something good to know i guess...
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