Is starter working?

[dmj]

I just rebuilt my engine using your books and wanted to test the starter before I put the engine and transmission back in the car.

I jumpstarted the starter attached to the engine using my battery and starter cables, and the starter operates but the engine does not turn.

I tested to remove the starter and jump started it again on my workbench. The motor is running and the gear is turning, but the gear does not extend.. so I assume that is why it does not engage with the flywheel teeth.

Is it a problem with the starter or is it just the way i jumpstart it? I grounded it and connected the + cable to the terminal closest to the starter, not the battery connection that usually is connected which require the ignition switch.

I have. 911 SC 1980.

Best,
Daniel

[afterburn 549]

Did you jump the relay?

[dmj]

No.

There are two major terminals, the battery + connector and the one close to the starter connected to the field winding with a strap. Also, we have the flat connectors to the ignition switch (top) and the cold start injector (bottom).

I connected the battery + to the terminal connected directly to the starter field winding, bypassing the relay.

Is there another (proper) way to jump it?

[afterburn 549]

your relay is there to pull then bendix out to the teeth on the flywheel.
bypassing that -your starter will just spin freely

[dmj]

Many thanks, works great now.

[boyt911sc]

Originally Posted by afterburn 549

your relay is there to pull then bendix out to the teeth on the flywheel.
bypassing that -your starter will just spin freely

You meant solenoid instead of relay?

Tony