Radio's going nuts!
 

I can't figure it out, the radio works just fine when the engine's not running, but with the engine running, it goes haywire. With the engine running, the steering and throttle are both jumping all over the place. I've never seen this before. I wonder if there's something loose in the receiver and when the engine's running, the vibration makes it go nuts. Who knows?

Radio's going nuts!
 

i dunno, but check to see that there is no metal htting the engine.

i know when i put ikn the glow igniter the servo flinches a bit

Radio's going nuts!
 

Most likely one of the below, in roughly the order I've seen it happen.


1) Metal to metal contact (no metal clevis on the throttle, right?) Check for loose screws.
2) Bad receiver crystal
3) Broken antenna wire... makes intermittent connection
4) Broken filter, broken circuit board trace in the receiver

Radio's going nuts!
 

None of the receiver problems would surprise me. It's an Ace Jaguar radio (POS)!

Radio's going nuts!
 

Maybe... but still give everything a once-over, just to make sure.
It could be as simple as a loose mounting screw somewhere.
I'm surprised you don't see broken receiver stuff more often, in cars,
because of the sheer abuse most of them take... with the receiver mounted
with only double-sticky tape in most cases. on the planes, we usually surround
the whole thing with foam, before tucking it away someplace safe ;)

Don't feel bad... I just traded for an RC10GT, and I'm running an old
Kyosho AM radio for now. (got the car without a radio, and just installed what I dug up)

Check the thing over completely, and try a new receiver crystal, before writing it off.

Radio's going nuts!
 

Make sure the tuned pipe and the header aren't touching. They need a little space.

Radio's going nuts!
 

ya try foam or open up the reciver to make shure theres no liquids inside it that happned to me once with a fuel leak and make shure the servos wires are not cut up and pluged securly into the reciver

Radio's going nuts!
 

After checking out everything closely and not finding anything wrong, I decided to install my Airtronics receiver and see what happened. Problem gone.

Radio's going nuts!
 

mine does this as well.. when i use the thottle servo the steering one goes mad.. it's tweakies and the failsage light goes on and off..
but when running it seems ok..

i've a sanwa receiver and two hi-tec 645 servo... i put it down to the receiver.. i want to get a new one but no sure what to get..

any suggestions...

Radio's going nuts!
 

also my car thottle servo locks up sometimes.. it getting really annoying.. i have fail safe switch and i think it cutting in... but the lights not on when it locks up.. strange..

i don't have the failsafe stuck down and it rattling around.. i going to sort this out now... do think that's why it cutting in...

to fix the problem i have turn the receiver switch (on the car) off and on..

this has only starting happenning so i'm total confussed..

all battteries are fine... Please help!?!?!?!