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Old 10-17-2017, 07:36 PM
  #26671  
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I recently had a problem with my wires getting unsoldered... did a complete rebuild of the truck, found a few crunchy bearings that needed to be replaced and also re-soldered fresh wiring/connectors and went through the whole truck with a fine tooth comb... then the truck would periodically shut off from hard landings... I was thinking it was a bad ESC, then eventually the motor seized up completely and it turned out to be a bad rotor:


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Old 10-17-2017, 08:20 PM
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that got warm as biscuits!
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Old 10-18-2017, 06:29 AM
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im taking it as you didn't change the motor bearings....lol..ive seen that happen a few times....couldn't you tell by how loud it was driving?
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Old 10-18-2017, 07:38 AM
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Originally Posted by skinned View Post
im taking it as you didn't change the motor bearings....lol..ive seen that happen a few times....couldn't you tell by how loud it was driving?
The motor was approaching 2 years old, no weird sounds other than normal operation, after pulling the rotor, I inspected the bearings and they're still in great shape, no crunchy feeling in the slightest. The truck has been very competitive too... it looks like it took a hard crash and a small corner chipped off one of the magnets then got wedged between the rotor and stator which consequently cut into the (epoxy/string) wrapping around the magnets and then excessive heat formed causing the wires to become unsoldered from time to time. I've been having intermittent problems for the past 6 months, it just got progressively worse until the motor finally locked up.

If I could do anything differently, I would've inspected the rotor months ago and I bet I could've seen the chipped magnet at that point which would've saved me a lot of frustration.

I've now realized is that all it takes is one nasty crash to damage a rotor, I'm going to make it a habit to regularly inspect the rotors in all my cars from now on! Probably worth inspecting every time they do a track layout change and I'm learning the timing for jumps and typically come up short with a lawn dart into the face of a landing ramp, I'm thinking that's when the rotor was more than likely damaged
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Old 10-23-2017, 09:55 AM
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OMG!....so I did a resolder...got a motor fan ...dropped my pinion...and I did great this sat. I made it through all 3 quals and the main with no probs...thanks again everybody who gave me some tips...
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Old 03-28-2018, 06:27 PM
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any word on a .4 release coming anytime soon?
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Old 03-29-2018, 11:55 AM
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Originally Posted by billdelong View Post
any word on a .4 release coming anytime soon?
I'm not aware of any but that doesn't mean there aren't any. TBH, most of us who race the truck already have what would be considered a ".4" anyway.

Emulsion caps
Ackerman
Bell Cranks
High Roll Center hubs
LF Springs
updated Ring and Pinion

^^ Those are the things that make the .4 a .4 (for the most part). About the only thing missing is the shorter arm / wider pivot, but I'm not certain the truck needs that.
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Old 03-29-2018, 06:00 PM
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thanks for the tips... I've been hoping it might be coming soon because the .3 has been out of stock for a while but no sooner did you reply, and then I got an email alert that the .3's are back in stock
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Old 03-29-2018, 06:02 PM
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Originally Posted by billdelong View Post
thanks for the tips... I've been hoping it might be coming soon because the .3 has been out of stock for a while but no sooner did you reply, and then I got an email alert that the .3's are back in stock
where is it in stock!?
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Old 03-29-2018, 06:06 PM
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https://www.amainhobbies.com/tekno-r...kr5507/p438712
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Old 03-30-2018, 12:00 PM
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So I just checked the upgrade options for the SCT410.3 and they have TKR8100 as the ackermann plate upgrade, only problem is that the holes for the steering post arms are 47mm on center but my stock SCT410.1 ackermann plate is only 34mm on center.

Is this right?

I assume this will give me more steering.

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Old 03-30-2018, 12:05 PM
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Originally Posted by billdelong View Post
So I just checked the upgrade options for the SCT410.3 and they have TKR8100 as the ackermann plate upgrade, only problem is that the holes for the steering post arms are 47mm on center but my stock SCT410.1 ackermann plate is only 34mm on center.

Is this right?

I assume this will give me more steering.


you also need 8104, the updated bell crank.
https://www.fiercercsolutions.com/TK...on-TKR8104.htm
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Old 03-30-2018, 12:18 PM
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Originally Posted by shadaloo View Post
you also need 8104, the updated bell crank.
https://www.fiercercsolutions.com/TK...on-TKR8104.htm
Ah, that makes sense... I just pulled the locked bell crank from my EB410.4 parts bin and can see how it's angled a little farther out.

Thanks!
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