Tractor won't turn over

I have a 1951 Mt. Won't turn over, need help where to start?

Start with checking ALL of the ground cable connections and the cable itself.

I also have a 51 MT. If cables all check ok. Becareful but help push on starter switch on top of starter. Take out of gear and see if you can turn engine with fan, or jack up one tire and try turning it in gear.

Every so often our 440 crawler the starter drive would get jammed up in the ring gear and sort of lock the engine up. Just turning the engine backwards by hand would release it. Maybe yours did this ?

If it wont start i would remove the starter to check if its ok maybe needs a refreshing then cables ect.

"<font color="#6699ff">[b:654c4848f0][i:654c4848f0]Won't turn over, need help where to start?[/i:654c4848f0][/b:654c4848f0]</font>"

Presuming the battery is good, check the ground cable first for a good, clean connection on both ends of the cable/strap.

Check the other battery cable to the staring motor on both ends for a good, clean connection.



Using a test light, check for power at the starter switch.





If there is power to the starter switch, then remove the starter switch.

Take a look at the diagram below.



Note the terminal stud (Key 38).

<font color="#ff0000">[b:654c4848f0][i:654c4848f0]CAUTION: MAKE SURE THE TRACTOR IS OUT OF GEAR.

MAKE SURE THE IGNITION SWITCH IS TURNED OFF.[/i:654c4848f0][/b:654c4848f0]</font>

With the tractor out of gear and the ignition switch turned [b:654c4848f0]OFF[/b:654c4848f0], touch the batter cable to the terminal stud on the starting motor.

If the starting motor turns over, then the starter switch may not be making contact with the terminal stud.

Either the contact terminal on the starter switch may be worn out or the terminal stud on the starting motor may be worn out.

If the starting motor does not turn over, then remove the starting motor and have it tested and/or repaired.

We have replaced several terminal studs on starting motors on our tractors.

As mention below, it could also have a faulty starter drive.

We have also replaced starter drives on a couple of our tractors.

Hope this helps.

Thank you I will try that. The other red wire on starter where is that going to?

That helped, I did what you said to and it turned over, where can I get that hub on starter it's worn?

The other small red wire goes to the positive terminal on the ammeter.

Take a look at the photo below.



Hope this helps.

The terminal stud can be ordered by the alternator/generator/starter repair shop.

The terminal stud can also be rotated 180^o to the side that is not worn.

Hope this helps.

Yes this helps, thank you. Do you have a pic of how ignition switch is wired and where they go to from switch.

Thank you

"<font color="#6699ff">[b:654c4848f0][i:654c4848f0]Do you have a pic of how ignition switch is wired and where they go to from switch.[/i:654c4848f0][/b:654c4848f0]</font>"

Take a look at the photo below.



Hope this helps.

Going faster, turning sharper and a good side hill should do the trick.