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Discussion Starter #1
Hello all,

Trying to change the fan belt on a '52 model B. Anyone know if I need to remove the fan to do it? If not, suggestions? Also, looking to possibly remove the fan anyway in the near future and could use some guidance there as I understand it can be a little trick with the spring portion.

Thanks
 

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I’ve just worked the belt over the fan one blade at a time. Have you tried that?
 

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I agree, you should be able to slip the belt over the fan, one blade at a time. Try to find a spot where the shroud gives you a little room to start, then go over another blade, and so forth. With the front grill, hood, and fan shroud in place, it does look more difficult than it really is.
I'm not even sure if the fan can be removed with the fan shaft still on the tractor. There are a lot of pieces that must come off to remove the fan shaft assembly for sure! If you suspect the fan or internal parts of the shaft assembly need repair or replacement, yeah, you will need to dig in. It is a very time consuming job, so be sure you are ready for it.

This photo is a '50 model B, just after the belt was installed. Did not have the hood on at this point. Every thing on it needed repaired or replaced, so I still remember the most challenging parts. The fan shaft assembly was one of the most difficult parts for me.

Genny rear.JPG

This one is the home made tools to compress the spring to remove the split keepers in the shaft end. Shaft was held in a bench vise. I don't really recall what the 3-jaw puller was doing, but it was helping somehow! JD probably had some better tools for this?

Fan 4.JPG

tommyhawk
 

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Discussion Starter #5
I agree, you should be able to slip the belt over the fan, one blade at a time. Try to find a spot where the shroud gives you a little room to start, then go over another blade, and so forth. With the front grill, hood, and fan shroud in place, it does look more difficult than it really is.
I'm not even sure if the fan can be removed with the fan shaft still on the tractor. There are a lot of pieces that must come off to remove the fan shaft assembly for sure! If you suspect the fan or internal parts of the shaft assembly need repair or replacement, yeah, you will need to dig in. It is a very time consuming job, so be sure you are ready for it.

This photo is a '50 model B, just after the belt was installed. Did not have the hood on at this point. Every thing on it needed repaired or replaced, so I still remember the most challenging parts. The fan shaft assembly was one of the most difficult parts for me.

View attachment 673534

This one is the home made tools to compress the spring to remove the split keepers in the shaft end. Shaft was held in a bench vise. I don't really recall what the 3-jaw puller was doing, but it was helping somehow! JD probably had some better tools for this?

View attachment 673536

tommyhawk
Thanks..........noticing your generator-can't tell from the angle but is it painted all black with the end caps gray? And is that the original color. Mine came all painted green, but I would like to return it to original.
 

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The generator shown was painted by the rebuilder at the gen/starter shop. Think his wife painted it, silver bearing plates, and gold end cap. I thought it looked cool, not too over the top, so we just let it go at that. We did a lot of extra things to make this tractor close to original, but there are some "custom" features like this. I'm not a purist on such things, but respect those who can make everything look the way it came from the factory. The original owner drilled a small hole in the frame for some reason, and brazed a hole in the rocker arm cover (how did he punch a hole in that???). We left a few things like that "as is". just because ol' Joe did it. The alternator and car type muffler had to go away though!

On an older "Two-Cylinder" forum, there was a lot of debate as to the JD color of the generators on the A-B era. Most arrived at the dealer with the gen. painted green, along with green overspray on the hoses, regulator, muffler, some of the wiring, and fan belt. Replacement rebuilt or new generators were black right out of the box. That would fuel the controversy, no doubt as to what was original. Possibly by 1952 the generator got installed after the tractor came out of the paint shop, and remained black as Delco had built it. I don't know for sure.
Unless it's an Expo quality tractor, do it to suit yourself. Enjoy your B!

tommyhawk

Left wheel off.JPG
 

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Discussion Starter #7
The generator shown was painted by the rebuilder at the gen/starter shop. Think his wife painted it, silver bearing plates, and gold end cap. I thought it looked cool, not too over the top, so we just let it go at that. We did a lot of extra things to make this tractor close to original, but there are some "custom" features like this. I'm not a purist on such things, but respect those who can make everything look the way it came from the factory. The original owner drilled a small hole in the frame for some reason, and brazed a hole in the rocker arm cover (how did he punch a hole in that???). We left a few things like that "as is". just because ol' Joe did it. The alternator and car type muffler had to go away though!

On an older "Two-Cylinder" forum, there was a lot of debate as to the JD color of the generators on the A-B era. Most arrived at the dealer with the gen. painted green, along with green overspray on the hoses, regulator, muffler, some of the wiring, and fan belt. Replacement rebuilt or new generators were black right out of the box. That would fuel the controversy, no doubt as to what was original. Possibly by 1952 the generator got installed after the tractor came out of the paint shop, and remained black as Delco had built it. I don't know for sure.
Unless it's an Expo quality tractor, do it to suit yourself. Enjoy your B!

tommyhawk

View attachment 673554
Thanks THawk. Think your right.....will prob just paint it something that looks good.
 

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To take the fan off you’ll have the take the entire fan shaft assembly off, then you'll need some clamps to compress the spring it has retainers like used on a valve spring that holds it together.
 
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