Nathan-88675

Update! I finaly got around to trying to replace the motor, I had already orderd two cheap used motores from ebay before you suggested getting in touch with Hornby. So anyway the new motor seems to have solved all the problems. I soldered it in as a direct replacement , leaving all of the wiring and lights in place. The stock motor I took out seems to have completely stopped working now!( tested using 9vbattery) So was obviously on the way out and shorting itself some how. Thanks for all the advice and I have ordered some small round magnets from ebay to play around with hot gluing in place to improve/change handling. Insidently the new motor that I have installed in the Mercedes seems to be slightly slower and the car is now a dream to drive without the need to reduce the power via the app.hugging_face

OK that could make sense if the ligthtboard is faulty I guess I could try just bypassing the board? I dont know much about electronics but I have used a soldering iron for RC cars in the past so should be ok! I got the two sets second hand so I don't know if Scalextric would be of help? The set had been hardly used, the cars were like new with spoilers intact (this didntlast long with us lol).

ps . our three other cars are working like a dream thankfully!

Thanks again The lights did work on the car, but its got to the point now where as soon as I put the car on track and apply power the PB shorts instantly. (It was shorting the PB intermittently before this latest development!) I dont want to damage the PB so im not going to test it on track anymore! Motor works with 9v battery Not sure what you mean by turning the guide 180, wouldnt doing this or swapping the wires just make the motor run in reverse? I cant see any wires touching or touching the motor (made sure about the ferritte man) No rubbing on axle either The closest thing to touching is the solder on the wires coming of the motor with the orange resistor? but its not touching, just close with not wire shrink When I get a chance i will take it to my friend who can test the car a bit more like you suggest.

Hi Andy and thanks for your comprehensive reply At first I thought the power short was dirt on track but after a while I realised that out of the 4 cars we have its always the Mercedes that causes the problem. It works for a while then intermittent power shorts occur requiring on off power supply to get going again. Its been hardly used so im presuming its a faulty motor from new. The motor itself turns when not shorting the track! I could try your suggestion to see if it gets hot for sure. Are you sure about the 35mm protruding? thats 3.5cm! Rough measurement of protruding shaft on this car is 10mm with the pinion about half way along. Regarding magnets i guess i will have to experiment. We have 4 cars: the Mercedes AMG GT3 and Ford GTE are fast and come off the track easily on full power but two other cars we have are Team GT and Team endurance fictional cars and these are much easier to drive. I guess its just different strength magnets then? Thanks again

Hi there, I got my son two second hand sets and its been great fun but I have had a problem with one car shorting the track ( Mecedes AMG GT3) its out of warranty and I cant see anything wrong with the wiring inside and Ive changed the braids multiple times so I think something is probably wrong with the the motor or at least its worth trying a new motor at this point. So I was going to replace with this one from scalextric website : https://uk.scalextric.com/products/motor-pack-side-winder-5mm-shaft-c8146 But a few questions - Is it the right size , what does 35mm refer to https://uk.scalextric.com/products/motor-pack-side-winder-5mm-shaft-c8146Can i get it cheaper elsewhere? ( ebay?)And can i get a slower motor? My son is six and we slow the cars down with the arc air app but be nice to play without app sometimes. Or would I be better ro fit a stronger magnet? WHere can you get magnets? Sorry for all the questions! Thanks!