1960's 4400 Gas Starter

MikeinAR

New User
I have a 60's 4400 gas tractor which had the starter go out. It's an old replacement, and has always ground a bit. When I removed it, it looks like the pinion gear is too small and has only just been engaging right on the tops of the ring gear teeth. It's finally wore them off where it won't engage, but there's most of the teeth left which leads me to believe the gear is too small. It's the 10 tooth, about 32mm diameter, and it looks like about 38 would be about right. It's the starter like the old trucks, but with a longer nose, and has a relay mounted on the tractor.
All the parts places only show the 10 tooth - is there another size available?
 
Nowadays we sometimes see replacement
starters with the axis of the drive
offset from the center point of the
mounting hole that use a different-sized
starter drive gear than the original to
make up the difference. Any chance some
mixing and matching of parts could have
occurred in the past?
 
Sounds like that might be a starter for a diesel, and most available these days are for diesels as well. Measure the outside diameter of the starter housing. It should be 5" if it is for a gasser, and 4-1/2" if it is for a diesel.
 

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