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Old 08-05-2009, 08:13 PM   #1
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Default Motor or Esc
When i drive my rock crawler after about 5 minutes the motor will just quit But the steering still functions.?? any one know what this is is it the motor or speed control?? And whats the best motor option for the mrc thats not pricey..
Also what type of shocks are the best besides the losi ones?

I finally got my crawler back together wow the lockers made a big difference. so did the blue claws!!!
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Old 08-05-2009, 11:41 PM   #2
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Do you have a stock servo? Sounds like you might need a bec.
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Old 08-05-2009, 11:44 PM   #3
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well the slider motor i've heard is a good option in them i had the micro mongoose in my mrc and loved being able to run lipo's with it. The stock motor didnt last very long for me. im kinda rough on things lol
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Old 08-05-2009, 11:48 PM   #4
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Quote:
Originally Posted by speedcrawler View Post
When i drive my rock crawler after about 5 minutes the motor will just quit But the steering still functions.?? any one know what this is is it the motor or speed control?? And whats the best motor option for the mrc thats not pricey..
Also what type of shocks are the best besides the losi ones?

I finally got my crawler back together wow the lockers made a big difference. so did the blue claws!!!
I'm kinda curious about this as well. I got a used one a couple days ago with all stock electronics and mine does this as well. Mine however does it when I am in a bind and give it more throttle to try to get out of it and the motor will stop but steering still works. I haven't waited more than 5-10 seconds to see if motor function will return, before I switch off the RX, then wait a few seconds and switch it back on and it works fine. Nothing is running hot all feels cool to the touch. I'm not to concerned as I will be upgrading electronics soon, but was curious as to what causes this.
Last edited by mhuffman_81; 08-06-2009 at 12:48 AM.
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Old 08-06-2009, 12:38 AM   #5
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It's your esc if you send it to losi they will repair it for free
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Old 08-06-2009, 04:03 AM   #6
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Quote:
Originally Posted by mhuffman_81 View Post
I'm kinda curious about this as well. I got a used one a couple days ago with all stock electronics and mine does this as well. Mine however does it when I am in a bind and give it more throttle to try to get out of it and the motor will stop but steering still works. I haven't waited more than 5-10 seconds to see if motor function will return, before I switch off the RX, then wait a few seconds and switch it back on and it works fine. Nothing is running hot all feels cool to the touch. I'm not to concerned as I will be upgrading electronics soon, but was curious as to what causes this.
My motor was doing this not too long ago ( Losi Insane 370 ) and the guy at the lhs told me to spray some electrical cleaner into the motor while it was running he said " my brushes were getting carbon deposit's or connects were dirty" I did this twice to my motor and no problems since
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Old 08-06-2009, 04:15 AM   #7
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Use WD-40.

it'll work fine
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Old 08-06-2009, 08:39 AM   #8
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i thought wd-40 would eventually attract dirt and dust.
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Old 08-06-2009, 09:25 AM   #9
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I have the same problem if I run the stock battery. If I run a 2 cell lipo it does not do it I also ha e bec weird?
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Old 08-06-2009, 09:27 AM   #10
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I'll use the cleaning of the motor.
And I'm using a full size servo.
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Old 08-06-2009, 09:45 AM   #11
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How hot is your ESC getting during all this?

If your MRC is relatively new and you haven't been crazy in the mud, dust, etc, it may not be a cleanliness issue.

With that full size servo: if your ESC is getting hot, too, it's probably time for a BEC.
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Old 08-06-2009, 03:34 PM   #12
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whats a good bec thats not pricey??
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Old 08-06-2009, 04:37 PM   #13
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your servo is pullin to many amps for the ESC. You need a BEC.

Castle Creations sells one for around $25. Set it to 6v and call it good.
Last edited by fa1rch1ld; 08-06-2009 at 04:38 PM. Reason: Because I cant spell!!!!!!!!!!
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Old 08-06-2009, 09:55 PM   #14
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Could I just switch to a servo that's not hightorque?
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Old 08-07-2009, 12:32 AM   #15
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Quote:
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Could I just switch to a servo that's not hightorque?
Seems like that would be a step backwards...
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Old 08-07-2009, 03:22 AM   #16
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Quote:
Originally Posted by speedcrawler View Post
Could I just switch to a servo that's not hightorque?


AAAAGGGGGHHHHHH!!!!!!!!!! less TORQUE?!??!!?!?! are you CRAZY:-P
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Old 08-07-2009, 07:55 AM   #17
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Lol ok I'll just get a bec
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Old 08-07-2009, 12:08 PM   #18
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Even with mini servos that are not stock you still need a BEC. But don't get a

mini. You will burn it up. Get a full size servo and run a BEC.
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Old 08-07-2009, 03:38 PM   #19
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I switched to a ball bearing hitech servo and fixed my gearing mesh and now it runs great and and it's a bit faster thanks guys for alll your help
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