Clifford Hora
New User
I'm converting my super M to 12 volt alternator negative ground Do I need to change anything with the starter?
- Thread starter Clifford Hora
- Start date
Just train the guy on the starter switch not to lean on it for long attempts to start the tractor. The 6V starter will live a long time on 12V if you don't abuse it. Freind had a M-38 Jeep (24V) killed the starter dropped one out of a '46 Chevy 1 1/2 ton (6V)into it it worked for quite a while.
Ive converted from 6 to 12 and used the old 6 volt starter at 12 volts and never had any problems HOWEVER that can be tough on starter drives and starers and perhaps flywheel ring gear teeth due to such strong initial kick in torque !!!!!!!!!!!!!!!!!!
My self and Ol Bob M have discussed this and are of the opinions when doing this NOT to use a super heavy high capacity battery (like a 1000 CCA, maybe a wimpy 500 CCA instead) orrrrrrrrrrr maybe use lighter gauge (like 4 or 2 instead of 1 or 0) battery cables EITHER OF WHICH can reduce the problem to some extent.
I think Jim or Bob have some recommendations far as the type of starter drive to use??????
Thats the best I can tell ya
Ol John T and all
My self and Ol Bob M have discussed this and are of the opinions when doing this NOT to use a super heavy high capacity battery (like a 1000 CCA, maybe a wimpy 500 CCA instead) orrrrrrrrrrr maybe use lighter gauge (like 4 or 2 instead of 1 or 0) battery cables EITHER OF WHICH can reduce the problem to some extent.
I think Jim or Bob have some recommendations far as the type of starter drive to use??????
Thats the best I can tell ya
Ol John T and all
Bob M
Well-known Member
Hey John T - The original, stock 6 volt starter and inertia (Bendix) drive are still on my Super M. It was my first alternator conversion - therefore it has survived on 12 volts for 30+ years now.
The only part I've had to replace was the commutator end plate. The original die cast (pot metal) plate cracked into several pieces - I presume from repeated impact reactions by the armature as the bendix spins out. The replacement commutator plate is stamped steel and is holding up fine.
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As you suggest I use a smallish, 525 CCA battery in an attempt to limit starter inrush current. The tractor still has stock #0 AWG battery cables however.
Bob M
The only part I've had to replace was the commutator end plate. The original die cast (pot metal) plate cracked into several pieces - I presume from repeated impact reactions by the armature as the bendix spins out. The replacement commutator plate is stamped steel and is holding up fine.
----
As you suggest I use a smallish, 525 CCA battery in an attempt to limit starter inrush current. The tractor still has stock #0 AWG battery cables however.
Bob M
Clifford Hora
New User
I wasn't sure about reversing the polarity if that was OK ?
Clifford Hora
New User
Thank You! For the help!!!!
Clifford Hora
New User
Thanks for all your help guy's !!!!!
Janicholson
Well-known Member
If you need to replace the drive, the new style is superior. It has no large drive spring. Jim
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