M42 start issues. Starter not always turning

[Geoff]

It really looks like the same thing to me..what up,  Romkasponka?  I mean not the same but will have the same effect.
                                                                        Geoff

[romkasponka]

Bendix

Will not grounding the lower nut be the same as grounding the starter chassis as it is all metal?

Correct.

hmm interesting. Do you mean that the starter relay is in the bendix drive?

Yes and no. Lets say it is contactor for high A and it engages starter motor with flywheel.

How does the M42 starter terminals actually work?
I mean, what do the do?

I drooped you a link there is good explanation. Big terminals inside bendix are shorted then you crank engine. Small terminals are to energize contactor and engage starter with flywheel.

[romkasponka]

It really looks like the same thing to me..what up,  Romkasponka?  I mean not the same but will have the same effect.
                                                                        Geoff

It wil not have the same effect. You will weld something because will make Short circuit when you energize bendix if you will try to do it like in maximan picture

[maximan]

Very nice explenation!
I begin to think that the bendix drive is the sinner here.

But i there was one thing i didnt understand.
You mean the current passes through the leader in the bendix drive and then through the unisolated cable into the stator and then to ground?

It seems it is no easy solution here other than replacing the starter motor again:(

[romkasponka]

But i there was one thing i didnt understand.
You mean the current passes through the leader in the bendix drive and then through the unisolated cable into the stator and then to ground?

Yes.

[Geoff]

thats a good explanation.  now I even understand it:rolleyes:

[maximan]

OK Glad we have it all sorted out!
It seems that i will have to replace the starter/bendix. Not what i hoped for but thats it.
It seems the problem is found, but the thread will be open in case i need more help or other have similar problems.

Thanks a bunch you guys!