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Mania
2011.07.21, 10:03 PM
The new MR-03 I bought yesterday has a servo that won't keep quiet! It keeps chattering and twitching and I'm not sure why, or what I can do about it. Help please!

Also, on an unrelated note, is a gyro a worthy investment?

I know there are probably answers to these questions on this forum, but I can really only access the internet once a day, and not for long which makes it rather hard to search for answers...

pomme de terre
2011.07.21, 10:23 PM
Is it just making noises, or is it actually moving/twitching as well? My MR03 makes some noises sometimes, but doesn't physically twitch at all.

You may find this thread useful:
http://mini-zracer.com/forums/showthread.php?t=32995

As well as some of these posts by Tjay
http://www.fastpaceracing.com/content/erratic-steering-movement-idle-fix
http://www.fastpaceracing.com/content/mr03-steering-and-throttle-glitch
http://www.fastpaceracing.com/content/how-solder-motor-wires-board

Since you're in Toronto, you should consider dropping by MC3 tomorrow evening so you can advice/help from some of the guys at the track :)
http://www.minicarclubofcanada.com/

Mania
2011.07.21, 10:25 PM
Thanks for the prompt reply. As for dropping by, I'm actually out of the country right now, which is why I have such limited internet. But I will definitely consider going when I return!

Mania
2011.07.22, 10:36 AM
When the car is just at neutral, the wheels don't appear to move, but when I move the steering to the right or left, there is a small but noticeable movement in the wheels left and right, like it's constantly trying to center itself.

reaper
2011.07.22, 11:20 AM
the 03 are well known for this , one cause is a slight amount of play on the pin that goes to the steering pot , there is a thread that tells you how to remove the play
i also put a small amount of thin grease on the servo gears this seems to help with any play
if there is even a small amount of play in the servo components it will cause the car to keep trying to centre the steering that is the chatter you are getting

Tjay
2011.08.17, 06:39 PM
Mania: I'm curious to know, where you able to fix it? If so, what did you do to fix it?

Mania
2011.08.17, 10:04 PM
No, it's actually gotten a little bit worse, though not as bad as the one you posted before your fix. I was considering trying out your trick when I got back since I don't even have CA glue here, but I'm not exactly in a hurry to probably messing something up.

color01
2011.08.17, 10:27 PM
If it's getting worse with time I expect it to be a wear item -- how old are your servo saver and gears? I have a mild chatter on my 03 but I'm 99% sure it's because the servo saver has never been cleaned or replaced...

Mania
2011.08.17, 11:22 PM
Just under a month old, and I haven't really run it that much.

Tjay
2011.08.18, 01:49 AM
Just becareful when you use ca glue. Use the medium ca and only a tiny bit on the tip of your x-acto knife.

Keep us posted.