Farmall Cub

I recently shared the trials and tribulations of the Woods overrunning clutch on my '51 Cub. I replaced a gasket and the broken compression spring and noted an awful lot of metal shavings inside. Anyway, the spring would not stay in place - kept slipping over the ratchets. Since I've never seen the inside of one of these things in good condition, my guess was the entire thing was just worn out. I bought a new one from my local Woods dealer ($417!) and it works great. Here's the problem now: I really, really, really want to take the new one apart to see what it looks like in there. Somebody talk me out of this!

Steve

You are only 75 miles from Boss Hog. I bet he has one you could look at. $417 is a lot of money, you could have gotten a good used one for a lot less. Be sure to check out our sponsors used parts and the wanted section of the forum.
I do abuse my mower all the time and after striped the gears twice i welded them together. Only problem is, if you want to back up you have to wait till the mower stops spinning

Yeah, I knew I was spending big bucks and I did look around a little bit for used. In the end, buying new was fast, easy and the grass was getting pretty high around here. Good idea about Boss Hog. There may be a CubFest in my future.

I have 2 Woods 42's and a spare spindle assembly, NONE of them have an overrunning clutch. I do know the IH C-2 mower has a very simple setup with pins and springs, the Woods one looks pretty complex in comparison. Haven't mowed much with the 42's so cannot say how they run without it.

I have been inside the clutch. It is not particularly complicated. It is better described as a metal to metal cogged ratchet arrangement that engages only in one direction. On your clutch, the cogs on either or both the pulley side of the ratchet or the spindle side (moveable spring loaded side) may have gotten worn down so the mating cogs no longer engaged properly in the the forward direction under load. Once the ratchet starts slipping in the forward direction over the face of the cogs, they will lose their intended straight or square faced alignment. This could be caused by a broken or weak coil spring or crud in the mechanism preventing the spring from positively pushing or keeping the moveable side of the cogged clutch together with the other mating half when in the engaged forward direction under load.

The real early ones just had a sheave (pulley) on top of the cutter shaft, no overrunning clutch. It is a good option.

3 and 3a:
http://www.farmallcub.info/manuals/wood ... e%2009.jpg

http://www.farmallcub.info/manuals/wood ... e%2008.jpg

Overrunning clutch page:
http://www.farmallcub.info/manuals/wood ... e%2012.jpg

challenger wrote:I have been inside the clutch. It is not particularly complicated. It is better described as a metal to metal cogged ratchet arrangement that engages only in one direction. On your clutch, the cogs on either or both the pulley side of the ratchet or the spindle side (moveable spring loaded side) may have gotten worn down so the mating cogs no longer engaged properly in the the forward direction under load. Once the ratchet starts slipping in the forward direction over the face of the cogs, they will lose their intended straight or square faced alignment. This could be caused by a broken or weak coil spring or crud in the mechanism preventing the spring from positively pushing or keeping the moveable side of the cogged clutch together with the other mating half when in the engaged forward direction under load.

It also needs to be oiled occasionally to "keep a film" on the parts. Over oiling can cause premature wear according to the manual.

Greetings fellow Farmall Cub Fans. I have a '49 model. I grew up with a "47 Cub that my granddad had and missed having one around after he sold the farm. I was reading a post by "Mike in Louisiana" and was wondering about this Boss Hog you mentioned. I am in need of the Overrunning Clutch and have no desire to pay a ton for it. I would only use my mover 3 times a year so... Any help would be great.

You can probably contact David aka "Boss Hog" by sending him a PM on the forum.

Or just put a WANTED ad in the VINE (free classifieds). Several folks have parts mowers.

Livintn wrote:......I am in need of the Overrunning Clutch ........

Are you trying to repair one and need parts or trying to add one to an existing mower? If the latter, depending on the mower, may not be possible. If there is a version of your mower with a overrunning clutch it would be easier to change the whole spindle. I don't know of any that mount on the PTO shaft for a Cub because of the size and spline count and the fact the Cub PTO turns opposite to about every other PTO known to man.