DT 300 - fail to start - TPS voltage value at 0 position ?

[Henry]

You haven't an electric shop in Brussels to fix a PM field starter? There is not that much to the thing? Brushes and bearings is about it. Personally, I would disassemble, inspect, clean, lubricate, redress or replace brushes before replacing.

I disassembled it ! Some 2 magnets have collapsed inside the housing when I took the rotor off, they were hold by the rotor, as soon as I took it off the magnets broke.
Dead

[Henry]

As CROSSBOLT says, either refurbish or take one aftermarket starter motor. Safes you idle time.
Had good experience lately.

Sounds good to me, I'll order one aftermarket.

Edit : done, ordered the one you suggested fro Ebay

[CROSSBOLT]

I disassembled it ! Some 2 magnets have collapsed inside the housing when I took the rotor off, they were hold by the rotor, as soon as I took it off the magnets broke.
Dead

Yow!  That is pretty bad! No wonder you were having start(er) problems. Too bad the magnets are broken...could have epoxied them back in.

Years back, when inverter generators were coming more popular, there was an enormous recall on one brand caused by magnets on the rotor coming unglued! Seems the epoxy was not mixed right at the factory....

[Ruffus]

Yep, sometimes you have to chip in. I have pne of two in storage, most likely will never need them.
Have a nice Sylvester🍾🥂

[mousejunks]

I disassembled it ! Some 2 magnets have collapsed inside the housing when I took the rotor off, they were hold by the rotor, as soon as I took it off the magnets broke.
Dead

Any photos?