Lucas 3M100 & 2M100 starters...

Stephen Thomas said:

Hi All,

I've got dodgy starter motor. After messing about with the usual tests in the car for a few days, I pulled it out today and it quickly became obvious there was a problem. Thankfully I have a spare which seems to run pretty well but it's a slightly different Lucas model and I wondered if it was compatible.

The old broken one is a Lucas 3M100 - 025701B43
The good one is a Lucas 2M100 - 25654E4174

They look almost identical except the gear wheels are slightly different. Picture attached.

Do you think the Lucas 2M100 will be okay to use?
The engine is a late 80's Range Rover Discovery v8

Many thanks,
Stephen

Click to expand...

Stephen Thomas said:

Hi All,

I've got dodgy starter motor. After messing about with the usual tests in the car for a few days, I pulled it out today and it quickly became obvious there was a problem. Thankfully I have a spare which seems to run pretty well but it's a slightly different Lucas model and I wondered if it was compatible.

The old broken one is a Lucas 3M100 - 025701B43
The good one is a Lucas 2M100 - 25654E4174

They look almost identical except the gear wheels are slightly different. Picture attached.

Do you think the Lucas 2M100 will be okay to use?
The engine is a late 80's Range Rover Discovery v8

Many thanks,
Stephen

Click to expand...

Stephen Thomas said:

Thank you...
I had intended to get the old one refurbed at some point. Hanger Lane is very close, I'm in North London, so this sounds like a good option.
The problem I've got with it is that it doesn't push the gear out, when I tested it on the bench. It spins and the gear moves little but not much, so it isn't engaging the fly wheel and not spinning the motor.
I'm not sure if that is a solenoid or starter issue.

Click to expand...