View Full Version : Servo Chatter

2011.07.21, 09:03 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, 09:23 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:

As well as some of these posts by Tjay

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 :)

2011.07.21, 09:25 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!

2011.07.22, 09:36 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.

2011.07.22, 10:20 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

2011.08.17, 05:39 PM
Mania: I'm curious to know, where you able to fix it? If so, what did you do to fix it?

2011.08.17, 09:04 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.

2011.08.17, 09:27 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...

2011.08.17, 10:22 PM
Just under a month old, and I haven't really run it that much.

2011.08.18, 12:49 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.