cub starter

ed will · Jan 13, 2016

Hi, I have a'47 Farmall Cub that the starter won't
stay engaged long enough to start the engine. I
requires several attempts. If I tow it a bit it starts
easily. Do I need a new bendix spring or just
bendix complete? It is very annoying as is. Ed Will

DGinVT · Jan 13, 2016

I had a similar problem with my '48. I removed the starter, disassembled it cleaned everything, replaced the brushes , including the slots on the communicator and replaced the bendix with a new one. Make sure that there is no grease or oil on the bendix. It needs to be cleaned and dry so it won't hang up.

glennster · Jan 13, 2016

they sell the upgrade bendix here on this site, which may eliminate your problem. also, check with a straight edge and a ruler and measure howw far in the ring gear is on the flywheel, then compare that with the bendix fully extended. my cub was doing the same thing, and i ended up moving the thrust washers from in front of the bendix to the back side of the armature. who ever rebuilt the starter at some point in the past put a few extra washers in front of the bendix.

jeffcat · Jan 13, 2016

When I rebuilt the starter on my 300U the coiled spring thing was in three pieces. Did all you mentioned but I needed to shim it to the rear end of the case. Measured like you say. Now it says no lubes but what I did was rubbed it down good with dry powdered graphite. So far it is slick as glass. Agree with getting the newer type of bendix. Also watch out with 6 to 12 volt change overs. You can break that spring if it is not the right one.

ericlb · Jan 13, 2016

similar problem to mine my starter will just barely engage the ring gear, and its ruined it, i got a new gear and bendix, ill look for washers when i split the tractor to replace the ring gear im mot sure if this 58 cub came 12 volt, or its an old conversion, i bought it when i needed another cub fast, as mine had broken down, and i dont know much about this one but is sure spins fast compared to my other original 48 wonder if that a problem, i checked the ring gear and its flush with the ridge on the flywheel

w1ebb · Jan 13, 2016

I had a 49 Cub years ago. When the generator went out, I took the starter and the generator to the local starter and alternator repair shop. I told them I wanted to make it 12 volt. They rewired the starter and gave me a "one wire Chevrolet alternator." They put a new gear on the starter when they reworked it.. I took it all home and put it together. Because the Cub had no lights, that wasn't a problem.they I put a 12 volt battery on it. Man, that thing turned over fast!
If all other doesn't work, maybe a starter repair shop (especially and older shop with older mechanics running it!) can help you.
Thanks for bringing back memories of my first tractor!

Scott

cub starter

ed will

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DGinVT

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glennster

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jeffcat

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ericlb

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w1ebb

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