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MG TD TF 1500 - Test of Starter

In our TDs without a solenoid switch on the starter if negative pole (positive ground car) is applied to starter a good start should engage ??? I believe the ignition switch isn't involve, am I on the right path
JON LEVINE

previous post is with starter still in car
JON LEVINE

The ignition circuit is separate, so you can turn the engine over without starting it.
Dave H
Dave Hill

If you apply power to the negative side and the starter is attached to the engine, then yes it should spin. If not then you most likely have a bad starter. The only other possibility is a bad ground but I don't see how it could be that bad.
Steve Simmons

Caution. Apply power with appropriate cable gauge. to small and the wire will get hot or even melt but the starter won't spin.

Laurent.
LC Laurent31

I once borrowed one of those clamp over the wire gauges to measure amperage and just for my information found the starter on my TD while cranking over the room temperature engine drew 105 amps. I assume that's normal as the car always starts up fine.
John Quilter (TD8986)

Jon as Laurent suggests it's essential to ensure the test cable is capable of handling the current. I'd use a pair of jumper leads directly from the battery. This will ensure both good power and earth (ground). Cheers
Peter TD 5801
P Hehir

This thread was discussed between 17/05/2020 and 18/05/2020

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