Is a fan hub assembly supposed to have seals

[Crimson Tim]

The fan pulley is one that all I can do for now is run it until it goes bad. That screwdriver slot on the plug is all buggered up on mine to the point that a screwdriver won't start to grab hold. I thought about drilling it out and retapping it but figure that the resulting metal chips would finish that bearing off.

I would recommend NOT letting that happen. I have read more than once on here that when the fan bearing fails, it usually takes the radiator out with it.
Careful use of left hand drill bit will probably snag the screw and pull it out before penetrating to the interior. Then just replace the screw.

If you do get metal filings inside, then you will have to take apart and clean out the fan assembly. I haven’t done this myself, but my impression from what I’ve read on here is that it’s not too bad a task.

[Dale Finch]

If you wait until it fails, it'll be even more work...not to mention paying for both a new fan and radiator!

[donnyG]

Hay Thanks again everybody for the advice. After reading i took a closer look at the bearing on mine. After getting all the oil off I can see that the hole in the bearing looks a little egg shaped so I guess I need a new one. I kinda figured out now how this thing works. The slinger is actually a scooper that pumps oil into the bearing to lubricate the shaft. Pretty ingenious. It makes sense that a close fit in the bearing is necessary for it to pump oil properly. I have an old Farmall guy nearby that sells new and salvage parts so I might check with him to see if he has a hub assembly or just the bearing. I'm pretty sure this is the original hub assy. and would like to keep it that way if I can. If not I'll probably check out e-bay. Thanks Steve-N-Tn and Glen.. Since I have a lo-boy Ser# 1371 it should be the correct replacement for mine. Thanks.

[Jim Becker]

. . . Since I have a lo-boy Ser# 1371 it should be the correct replacement for mine. Thanks.

I don't think so. It is listed as the early style. Reread what Glen said.

[Crimson Tim]

Should be plenty of sources, though. JP tractor salvage, forum sponsor, can probably help you out, as can many forum members who are parting out tractors. Check the Vine classified section on this site and post a wanted ad.

[AL Farmall Boy]

My bad on the belt pulley vs fan pulley. I seem to have 90w on the brain lately.

The fan pulley is one that all I can do for now is run it until it goes bad. That screwdriver slot on the plug is all buggered up on mine to the point that a screwdriver won't start to grab hold. I thought about drilling it out and retapping it but figure that the resulting metal chips would finish that bearing off.

You could try using an impact screwdriver to get it out. Usually doesn't take much.

[Glen]

Hi,
The LoBoys have their own serial numbers, they are not the same as Farmall Cub serial numbers.
Farmall Cub serial number 501, which was the first Cub, was made in 1947,
LoBoy serial number 501, which was the first LoBoy, was made in 1955.

They are 2 different models of tractors, each with it's own numbering system.

The Cub parts manual says the first style of fan pulley was used until engine serial number 165152, not Cub tractor serial number 165152.
They did not make LoBoys yet when engine 165152 was made.

The LoBoys used Cub engines that seem to have serial numbers that were being used for Cubs during the same years as the Cubs were made.
The LoBoy engine serial numbers did not begin at 501.

Raymond Durban's database says LoBoy serial number 501 had engine serial number 196902, and the rest of 1955 production was above that number.

You need the newer style of fan pulley. The one in the ebay ad on the first page of this post is not the right one, according to the man's description in the ad. He did not put in the ad that it is engine serial number 165152. I would not buy it for a 1955 LoBoy.

The engine serial numbers did not match the tractor serial numbers on Cubs, except in 1947 for a while, according to Raymond Durban's database.

You can look at your LoBoy's engine serial number and see what it is, it shows where it is in the owner's manual. You need a light to see it, and you might need to clean it to see it.
Below is a page from the 1957 LoBoy owner's manual showing where the engine serial number is.

http://farmallcub.com/rudi_cub/www.clea ... e%2002.jpg

Below is a page from the Cub parts manual. You can see at number 15 in the description, it shows it is the engine serial numbers they are talking about.

http://www.farmallcub.info/manuals/cub_ ... 012-05.jpg

[donnyG]

Oh Thanks Jim and Glen. i misunderstood Glen's first message i will keep that in mind when I'm looking. My engine ser# is higher so i definitely need the later the later model. I'll check the sources you mentioned if my guy can't fix me up.