Case SC

[mttom64]

Helping a neighbor out with a tractor she wants to get running. I am an auto mechanic so dont know much about old tractors. the Tag says
1708677 SC. If my research is correct that makes it a 1943 model SC? In any event this tractor has no charging system that I can find -(should have a 6 volt generator on carb side)? The battery in it is a 12 volt for whatever reason but there is no gen or alternator or no signs of a retrofit. There is no ammeter and from pictures I've looked at the hole the ammeter would go in has a plate covering it. I have no spark either.

Can anyone shed some light on this charging system? Any info would be greatly appreciated

 

[J Hamilton]

Factory original electrical system is a 6 volt NEGATIVE ground, many people think think 6 volt is always positive ground, but not for the Racine built Case tractors. And yes, it would have had a generator. Unless you want it to be original, using a 12 volt battery and installing an alternator will work just fine. I have a 42 SC myself and it was 12 volt when I got it, but I put back to 6 volt with a 6 volt alternator. For your no spark issue, do you know if it has the original magneto or a replacement battery ignition coil and distributor?

 

[mttom64]

Factory original electrical system is a 6 volt NEGATIVE ground, many people think think 6 volt is always positive ground, but not for the Racine built Case tractors. And yes, it would have had a generator. Unless you want it to be original, using a 12 volt battery and installing an alternator will work just fine. I have a 42 SC myself and it was 12 volt when I got it, but I put back to 6 volt with a 6 volt alternator. For your no spark issue, do you know if it has the original magneto or a replacement battery ignition coil and distributor?

Thank You - yes it has the original magneto. 6 volt alternator might be the way to go. Not seeing any of the wiring or ammeter - there is no bracket for a gen either. They must have removed and got a smaller belt...? again thanks for the info. Not looking to restore just needing to get running quick and cheap

 

[J Hamilton]

Since it has a magneto, you could go 6 or 12 volt with no issues since it doesn't require battery voltage. A 12 volt alternator would be cheaper than a 6 volt. Also, if you need help with getting the magneto working properly, there is a regular poster on the forums that goes by the name of Teddy53food that does magneto repair as a hobby. I recently sent him a magneto for repair. Also don't be afraid to ask any questions you may have, there are lots of very knowledgeable people here willing to help.

 

[mttom64]

Thanks again - I'll look into a bracket and wiring for a 12V alternator.

 

[jwal10]

Sounds like maybe a stripped down war time model, no battery or starter? Hand crank? Battery and starter added later....James

 

[tomturkey]

If you decide to replace the 6volt generator I have one or two you could have. I grew tired of voltage regulators failing and have converted most of mine to 12volt with alternator. gobble

 

[Don Rudolph]

Helping a neighbor out with a tractor she wants to get running. I am an auto mechanic so dont know much about old tractors. the Tag says
1708677 SC. If my research is correct that makes it a 1943 model SC? In any event this tractor has no charging system that I can find -(should have a 6 volt generator on carb side)? The battery in it is a 12 volt for whatever reason but there is no gen or alternator or no signs of a retrofit. There is no ammeter and from pictures I've looked at the hole the ammeter would go in has a plate covering it. I have no spark either.

Can anyone shed some light on this charging system? Any info would be greatly appreciated

The serial number should start with either a 4 or 5 and contain 7 numbers total. I'm guessing there is part of a 4 hidden under the screw head on the serial number tag. To find the year you subtract 4 from the first two numbers. This would make the SC either a 1943 or 1953 model year, if the first number is a 5.. There should also be a serial number stamped into the engine block lip that bolts onto the transmission housing. Previous owner only used the 12 volt battery for starting several times before needing to re-charge the battery, w/o any functioning onboard charging system. Pretty common fix for an old magneto fired tractor.

 

[mttom64]

The serial number should start with either a 4 or 5 and contain 7 numbers total. I'm guessing there is part of a 4 hidden under the screw head on the serial number tag. To find the year you subtract 4 from the first two numbers. This would make the SC either a 1943 or 1953 model year, if the first number is a 5.. There should also be a serial number stamped into the engine block lip that bolts onto the transmission housing. Previous owner only used the 12 volt battery for starting several times before needing to re-charge the battery, w/o any functioning onboard charging system. Pretty common fix for an old magneto fired tractor.

Yup there is a 4 partially behind screw head. Makes it a 43 then?

 

[Don Rudolph]

Yup there is a 4 partially behind screw head. Makes it a 43 then?

Yes, 1943.

 

[Glenn F.]

If you decide to replace the 6volt generator I have one or two you could have. I grew tired of voltage regulators failing and have converted most of mine to 12volt with alternator. gobble

Where are you located, Tom?

Glenn F.

 

[mttom64]

Where are you located, Tom?

Glenn F.

White Sulphur