Vintage electrics

[AndyF]

Hi

I have been trying to get my old procat running. When I plug the battery in the car starts twitching. When running, I can either drive forward or turn, but not both at the same time. If I steer whilst the throttle is open it carries on in a straight line. If I release the throttle it steers, re-apply the throttle and the front wheel remain at the same angle.

It has an old 17T single motor, speedmaster esc and a futaba receiver all around 18 years old!!!

The question is; Is it my receiver, transmitter or esc thats at fault? Any ideas?

Andy

[Mike Hudson]

servo

[Gayo]

Servo and esc plugs may be touching each other into the receiver box, if you know what I mean. I would definitely check that first.

Good luck!

[Col]

This sounds like my entirely modern car does when the battery's are flat. Are your cells old? Maybe they no longer have enouge volts (or is it amps) to do all this at once?

[traffman]

Correct me if im wrong but something in my head thinks its the battery eliminator circuitry that may be at fault.

Ha s the speedo got the reverse relay or is it the fwds only ?

[niggs98]

depends on the speedmaster that you have, if its a silver star then it is forwards and reverse, if its a goldstar then its forwards only. if there is no stickers on it to say either way thn post a pic and i will let you know