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Old 05-17-2009, 04:34 PM   #1
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Default Any way to protect the spur gear on TC4?

Hey all-

I recently got a TC4 which I REALLY like. I run it on the street and my spur gear is really getting chewed up though. I am having to replace the spur after every 2 battery packs or so. It seems that its due to the tiny pebbles on the street left over from the winter. Is there any gear cover available or other easy way to keep my spur gear from getting trashed so quickly?

Thanks,
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Old 05-17-2009, 05:46 PM   #2
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I have a TC3 and I run it in the street as well and haven't had any problems like this at all. Check your mesh.
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Old 05-17-2009, 06:12 PM   #3
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I have a TC3 and I run it in the street as well and haven't had any problems like this at all. Check your mesh.
Thanks. I will double check the mesh. But I think its probably all the micro-pebbles. They are all over my chassis after a run and I was thinking they were bouncing off the gears as well. Are you getting any pebbles inside your chassis?
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Old 05-17-2009, 07:38 PM   #4
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It's a pain to change spur gears on a tc4. I had mine changed after a year
of street racing. Its just natural to have some nicks or dents on the gear's
teeth if you run them on the streets. Just live with it, as long as it's not
causing any binding or stock ups or noise, it's just fine. Clean your kit after
every run and if you hear a weird noise (clak clak clak), it means that a
small pebble got caught in one of the gears, inspect it first and use a small
flat screw driver and pop off the pebble then run the screw driver on the
damaged teeth to straighten it out again. Dont put any grease or oil on the
gears and stay away from 64 pitch gears if you always run on the streets.

Good luck
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Old 05-17-2009, 08:43 PM   #5
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If you'er worried about dirt, then build a lexan cover to fit over the car. It works for the rally cars.
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Old 05-17-2009, 09:07 PM   #6
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Quote:
Originally Posted by iaanr View Post
Thanks. I will double check the mesh. But I think its probably all the micro-pebbles. They are all over my chassis after a run and I was thinking they were bouncing off the gears as well. Are you getting any pebbles inside your chassis?
Yes, I get pebbles inside my chassis. They do get caught in the gears like mentioned here, but I haven't had any issues at all.
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Old 05-17-2009, 11:18 PM   #7
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I find lots of pebbles on my chassis after running in my street. They get caught in the gears every few runs or so. I just know when I hear that noise I stop and pop it out with a knife or screwdriver. Never had it ruin a spur, you should definitely make sure the mesh is set correctly.
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Old 05-18-2009, 12:11 AM   #8
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The only thing I could do to stop that was to not run where theres rocks...they used to jump into the area by the steering and bind the steering...fab up a lexan cover...
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Old 05-18-2009, 08:15 AM   #9
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I had a pebble in diff gears, once. Still don't know how it got in there.
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Old 05-18-2009, 08:28 AM   #10
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Quote:
Originally Posted by trdsupra88 View Post
The only thing I could do to stop that was to not run where theres rocks...they used to jump into the area by the steering and bind the steering...fab up a lexan cover...
Yeah they are occasionally locking up my steering as well.

Thanks everyone for all the advice. Its good to hear that the spur gears can really last on these things. I will check and recheck my mesh and fab something with lexan if the pebbles becomes a long term problem.
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Old 06-29-2009, 06:09 PM   #11
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I just put a piece of tape on the bottom of the chassis under the spur on my tc3......not sure if the TC4 is the same though.
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Old 06-29-2009, 06:21 PM   #12
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whilst shouting GO GO GO.......Take the spur gear off...

Lock it up in a safe and employ security guards and round the clock surveillance....

The only true way to stop a tc4 spur getting nom nom nom nomed....

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