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Steel Spur and Motor Flex

Steel Spur and Motor Flex

Old 06-04-2012, 08:38 PM
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Default Steel Spur and Motor Flex

I need to tune a couple things out, my pinion chewed up my spur. I had the stock pinion with the stock spur. With the stock motor, everything was fine. with the 7.5 turn Turnigy trackstar, the car made some cracking/snapping sounds under power and on the brakes. it was getting worse so I threw in the towel for the day. Here's what it looks like after all that noise:



Plastic Debris all over the place.


It's in all the corners


Spur is chewed up pretty good


Motor mount spot looks good to me but together, the motor isn't as tight as i thought it should be.


Driveshaft cup got pushed down


driveshaft cup cut a grove


Really nasty down in there with all the plstic shavings and grease. it was clean before the run.


Is this thing supposed to flop around all loosey-goosey?


Here's the pinion gear after the run. You can see the teeth are a little twisted in the picture of the spur chewed up above.


It was running just fine at first, you can see in this video:

+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.


Thats duck tape. At first i was just taping the body back togehter but it ended up with a layer all over it and then a racing stripe. If you think it's ugly, you should have seen it before...


So, what do you fellers think is wrong here? I'm new to tinkering on this tt01.


Edit: Something occurred to me. The stock brushed motor got REALLY FREEKIN' HOT when it bit the dust. I'm thinking the heat may have damaged the motor mount slot on the tub chassis, allowing the motor to wiggle and un-mesh.

Last edited by Satyrisci; 06-04-2012 at 10:39 PM. Reason: Blazing Enlightenment
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Old 06-04-2012, 09:17 PM
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In that video we were only running the TT01 at about 25% throttle since we were breaking in the motor. Definitely need to replace that pinion too, it's just as bad as my old 15T one on the BD 8E.
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Old 06-05-2012, 01:43 AM
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Look at a TT-01 manual. You'll see that the fit of the bearing into the rear gearbox should not be loose like that.

Your TT-01 has a number of worn out parts. You need to replace them.

If you are going to continue using fast motors, you need to upgrade a few parts - or change to a better chassis. The TT-01 suits a silvercan motor, but more power than that is beyond the limits of the chassis.
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Old 06-05-2012, 02:37 AM
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As above.
But also, that 'groove' in the spur suggests that something was caught between the spur and pinion but we can't tell whether that happened because of the failure, or the failure happened because of that debris.
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Old 06-05-2012, 04:16 AM
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thats way beyond a TT01 safe motor limit, you need a less powerfull motor or an new chassis thats capable of handling the power, and you need a few new parts for your TT01
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Old 06-05-2012, 02:06 PM
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So, should I order a new tub, new steel spur, new pinion, new missing piece, and want to enhance the suspension for traction/stability...

OR

Pick out a new kit/RTR that is the king of parking lot bashing? I love the $125 price tag on the TT01 kits....
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Old 06-05-2012, 04:03 PM
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is the missing piece in this set?

http://www.rcmart.com/3racing-tt0124...th=595_744_708
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Old 06-05-2012, 04:22 PM
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I don't know anything about the TT01 but just so you know, brushless motors don't require any break-in. Let her rip and watch the pieces fly
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Old 06-05-2012, 04:30 PM
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I'm glad I didnt give her hell, I think pieces might have actually flown through the air.
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Old 06-06-2012, 02:48 AM
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Look at a TT-01 manual. You'll see that the fit of the bearing into the rear gearbox should not be loose like that.

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Old 06-06-2012, 03:01 AM
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Originally Posted by Satyrisci
....Pick out a new kit/RTR that is the king of parking lot bashing? I love the $125 price tag on the TT01 kits....
The problem is you're going to ending up spending that each time you suffer a huge failure.

If you want to use that much power, you are going to need a car that can handle it.

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Old 06-06-2012, 03:34 PM
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FIXED IT!

It is supposed to look like this:




TT01 HATURZZ:

Really glad I didnt listen to you haturzz because It handles great.

I suggest this setup to anyone, and I haven't programmed anything with the ESC yet. Just the preliminary throttle positioning when you first turn on the ESC.
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Old 06-06-2012, 03:53 PM
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Yeah, that thing was quick. Can't wait to get mine.
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Old 06-07-2012, 10:20 AM
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Its not hatin', its common sense, TT01 is not made for powerfull systems.

it will keep breaking down forever.
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Old 06-07-2012, 03:20 PM
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It never broke down in the first place, the assembly was wrong if you read what he posted. It was the wrong bearing, allowing that flop which made the spur gear move and mesh against the pinion sideways, tearing away at part of the spur gear. We've taken this thing full throttle for about 5 runs now, nothing has gone wrong since it was fixed.
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