Farmall Cub Forum -- Questions and answers to all of your Cub related issues.
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Mon Feb 11, 2013 9:23 pm
I would appreciate any suggestions as to where I can purchase a centrifugal type starter bendix. Please refer to the "starter bendix" post (using the search window) that was posted here on September 17, 2012 at 10:59am. In that post, the two different types of starter gears are pictured. My timing is right, my condenser is new, but when it is cold the engine needs a couple of full turns before it fires up and stays running. My spring type starter gear kicks out too early.
I tried ordering one from NAPA auto parts - but they only acquired the spring type. The NAPA parts guy said that both types have the same part number (is that true?). I am thinking that I might have to go to a tractor boneyard - but I would much rather purchase a brand new one.
Am I correct that both types fit on the same starter shaft?
Any suggestions would be greatly appreciated.
Mon Feb 11, 2013 9:45 pm
Check wih your local auto elec repair. The place that repairs alt, generators and starters.
Tue Feb 12, 2013 4:08 pm
The Cub starter has a screw or worm gear housing that slides over the starter drive shaft. A flat coiled spring connects the starter shaft to the worm gear housing. The starter gear is moved outward on the worm to engage the ring gear by the principle of inerta working with the sudden rotation of the starting motor. The coiled spring cushions the impact to the starter motor when the worm gear meshes with the ring gear.
Tue Feb 12, 2013 5:58 pm
rick 48 cub wrote:My timing is right, my condenser is new, but when it is cold the engine needs a couple of full turns before it fires up and stays running. My spring type starter gear kicks out too early.
The only time the starter bendix, over running clutch, will kick out is when the engine in turning faster than the starter. Double check engine timing - full engine tune up.
Tue Feb 12, 2013 9:19 pm
As Eugene says the timing, not the starter is the most likely culprit. Your starter spring would not cause the problem. Your spark is likely retarded, meaning the spark is delayed and firing after TDC. Forget the dynamic timing with the light. Do a static time on the engine. Make sure the points open and spark occur on number one cylinder right at the TDC mark on the crank pulley. The distributor has a centrifugal weight system to give you the proper advance as the engine rpm increases. Also, make sure you have not mistakenly switched the spark plug wires on the plugs. When looking at the open distributor, number one terminal/plug on the inside of the cap is at 1 o'clock and the rotor turns clockwise to fire plugs 1342.
Wed Feb 13, 2013 2:07 pm
Different versions of that type of starter drive, folo-thru is one type. I have no idea where to get one other than ebay or a starter shop.
I would do as others suggested, tune the engine. I will disagree with Challenger, do dynamic timing with a light, more info than through static timing. Check to see if the advance is working by using the light.
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