I agree that it's unlikely metal vibrating can cause interference in a 2.4 system, but it's not impossible. If the parts were vibrating fast enough it could possibly interfere, but it's unlikely to happen.<div>
</div><div>But ignition interference it a totally different issue. I have seen ignition interference on 2.4 systems before, and I'll say that is probably the issue you have here as well. Since you have already tried different servos for the throttle servo and you have the same issues you can pretty much rule out that it's a bad servo causing your problems. It's a good rule of thumb to get ALL radio equipment at least 6" away from any ignition component. From your pictures it appears to me that the wire going to your spark plug is running directly underneath your throttle servo. My guess is that this is causing your problems.<div>
</div><div>It's a simple test to see if this is your problems. Unscrew the throttle servo so that you can move it around. Put it where you have it installed now and start the plane, you should still have the issues you are talking about (you will have to run up the engine manually because the throttle servo won't be connected). Now move the throttle servo back into the body of the fuselage and see if this doesn't cure your problems. I'm guessing that your interference issues will go away.</div><div>
</div><div>You will need to mount the throttle servo back into the fuselage to keep it away from your ignition components. Also, you will need to use non-metal pushrods to connect the throttle servo to the throttle, GoldenRods are what I use for this setup, although there are others available.</div><div>
</div><div>Give this a try and see if your issues don't go away. Ignition interference has brought down many a plane over the years. You need to carefully plan your installation and setup inside the plane to make sure that you keep all radio equipment away from interference from the ignition. </div></div><div>
</div><div>Hope this helps</div><div>
</div><div>Ken</div>