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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> 1/16th, 1/18th, Mini & Micro RC Cars >> My car needs a push
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My car needs a push - 2/10/2008 4:30:10 PM   
Pontiac K



Posts: 225
Joined: 9/15/2007
From: A Town, IL, USA
Status: offline 		When I stop my Mini-Baja it won't go until I give it a push. I just used a battery for the first time. What can I do to fix this?

EDIT: At the beginning of the run this wasn't happening. Then I changed the channel on the transmitter and the receiver then this started. I tried changing channels and that didn't work. It also slowed down when this started happening.

Pontiac K

< Message edited by Pontiac K -- 2/10/2008 4:37:21 PM >

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RE: My car needs a push - 2/10/2008 4:48:37 PM   
Beomagi



Posts: 238
Joined: 1/3/2006
From: Bayonne, NJ, USA
Status: offline 		what motor and esc are you using? how easily does you car move when you push it?

(in reply to Pontiac K)
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RE: My car needs a push - 2/10/2008 4:51:31 PM   
Pontiac K



Posts: 225
Joined: 9/15/2007
From: A Town, IL, USA
Status: offline 		It is the RX-280 motor (stock) and Losi ESC (stock). It rolls just fine, but has never done this before.

Pontiac K

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RE: My car needs a push - 2/10/2008 4:54:56 PM   
Mr. Mugen



Posts: 5501
Joined: 3/24/2006
From: Ishpeming, MI, USA
Status: offline 		Your brushes are hanging up in the hood most likely. The hood is the square box shaped channel the brushes go into. Also make sure the leads going to your brushes are not binding on the endbell somewhere not allowing the brush to push inward with the spring.

< Message edited by Mr. Mugen -- 2/10/2008 4:56:13 PM >

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RE: My car needs a push - 2/10/2008 4:56:31 PM   
Pontiac K



Posts: 225
Joined: 9/15/2007
From: A Town, IL, USA
Status: offline 		Ok thanks. Maybe I jarred it up a little.

EDIT: Thanks that fixed it. I took it off my ramp (the bosx it came in) and popped the right front shock off. I did that yesterday too. Is there anything I can do to fix the shocks popping off?

Pontiac K

< Message edited by Pontiac K -- 2/10/2008 4:59:53 PM >

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RE: My car needs a push - 2/10/2008 8:02:40 PM   
t9dragon



Posts: 3218
Joined: 4/5/2004
From: Portland, OR, USA
Status: offline 		Buy some 3racing aluminum threaded shocks and that should solve your problem.

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RE: My car needs a push - 2/11/2008 1:24:04 AM   
Pontiac K



Posts: 225
Joined: 9/15/2007
From: A Town, IL, USA
Status: offline 		I fixed the problem with a little washer. But now it won't run unless I turn the brushes to their side. Is there anything wrong with that or will it tear up my motor?

Pontiac K

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RE: My car needs a push - 2/11/2008 1:34:05 AM   
Kitsune



Posts: 984
Joined: 4/6/2003
From: Elburn, IL, USA
Status: offline 		I had the exact same problem with my Baja. I just bought a new motor for mine.
I think all the electronics on these leave something to be desired.

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RE: My car needs a push - 2/11/2008 1:37:54 AM   
Pontiac K



Posts: 225
Joined: 9/15/2007
From: A Town, IL, USA
Status: offline 		Yeah this is my third replacement (ENTIRE CAR).... but it isn't going anywhere. Will this tear up the brushes and destroy the motor?

Pontiac K

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RE: My car needs a push - 2/11/2008 1:47:13 AM   
Kitsune



Posts: 984
Joined: 4/6/2003
From: Elburn, IL, USA
Status: offline 		You might want to consider a different replacement motor. I put a Trinity Micro Monster in mine and it worked pretty good. Very similar performance to the stock, yet more reliable.

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RE: My car needs a push - 2/11/2008 1:49:29 AM   
Pontiac K



Posts: 225
Joined: 9/15/2007
From: A Town, IL, USA
Status: offline 		Does that ESC handle it? Losi said it could only handle 6 cells. I think I might turn the brushes sideways and nurse this motor until its done, unless someone knows that will destroy the motor.

Pontiac K

< Message edited by Pontiac K -- 2/11/2008 2:15:13 AM >

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RE: My car needs a push - 2/11/2008 2:20:56 AM   
Kitsune



Posts: 984
Joined: 4/6/2003
From: Elburn, IL, USA
Status: offline 		I'm really not 100% sure on that. It's not a significantly higher draw motor than stock, so I imagine it will handle it. I think I switched to a Novak Spy by the time I replaced the motor.
Of course you don't have much to lose with your method too. You might give that a try first.

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RE: My car needs a push - 2/11/2008 2:41:53 AM   
Pontiac K



Posts: 225
Joined: 9/15/2007
From: A Town, IL, USA
Status: offline 		I'm pretty sure that it is toast. now it won't run no matter how the brushes are turned.

Pontiac K

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RE: My car needs a push - 6/25/2008 2:53:00 PM   
musclecar201



Posts: 147
Joined: 2/19/2008
From: , MA, USA
Status: offline 		ok I'm having the same motor problem, I have an rx280 from a baja and it only runs when I push it, I was told to take it apart clean the armature and brushes with alchol and oil the motor. What do you guys think?

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RE: My car needs a push - 6/25/2008 3:01:31 PM   
BigTb17


 

Posts: 327
Joined: 2/12/2008
From: Perrysburg, OH, USA
Status: offline
quote:

ORIGINAL: musclecar201

ok I'm having the same motor problem, I have an rx280 from a baja and it only runs when I push it, I was told to take it apart clean the armature and brushes with alchol and oil the motor. What do you guys think?


That would be a good place to start. Just remember to oil the bearings, not the commutator or brushes. Only use comm drops specifically for that. Oil will cause your brushes and comm to burn up much faster.

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RE: My car needs a push - 6/25/2008 3:03:24 PM