Fan Lubrication

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Model T Ford Forum: Forum 2012: Fan Lubrication
Top of pagePrevious messageNext messageBottom of page Link to this message  By James A. Golden on Wednesday, May 23, 2012 - 09:15 am:

There seems to be a difference of opinion on about every aspect of the Model T.

These questions were asked yesterday by a new club member and I don't really know the answers.

Why does the fan hub have a screw in it, which is evidently for lubrication?

How often should that screw be removed to add lubrication?

What kind of lubrication should be added, oil or grease?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Bill Alexander in Albion, Maine on Wednesday, May 23, 2012 - 09:19 am:

According to the Model T Lubrication Chart, you should lube the fan bushing with oil. But I have seen cars with a grease fitting instead of the screw. I use oil and do it 2 times during our April-November season here.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Hal Davis-SE Georgia on Wednesday, May 23, 2012 - 09:23 am:

I like the earlier ones with the grease cup on the back. I remember to lube it more often. I have the screw plug type on my truck. Thanks for bringing this up. Maybe I can remember to go out and lube it now. It's been a while.:-(


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jim Patrick on Wednesday, May 23, 2012 - 09:47 am:

On the '26, the oil is poured into the reservoir just behind the fan. The fan shaft has a hole in the head connected to a shaft that goes to the center of the pulley between the bushings where an exit hole is drilled to the shaft hole, so that the oil can make it's way from the oil reservoir to the center of the pulley between the bushings. If you use grease it will block the shaft hole so a flowing oil needs to be used so it can make its' way through the small shaft to the inside of the pulley. Jim Patrick


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jerry Ostbye on Wednesday, May 23, 2012 - 10:04 am:

Mine has a grease fitting and I use No 1 full synthetic and it still sticks sometimes. I made a new bushing for it and it may just be too tight of a fit but this year I am planning on trying oil instead.


Top of pagePrevious messageNext messageBottom of page Link to this message  By James A. Golden on Wednesday, May 23, 2012 - 10:44 am:

Thanks Jim and all! The drawing is excellent!!!

I always say that anything I need to know, I can ask my computer, especially while on-line.

I did not immediately find an answer to the fan lubrication, in any of my publications, but our club president will be happy to know that he was correct.

This just goes to prove that we can all learn from each other through our mutual interests and associations.

I didn’t know what my T had and had to go check. I have a grease fitting! I don’t remember when it might have been greased last.

Some times my fan belt has come off. It may have been because the fan set up, like Jerry mentioned. It does have recently new bushings, installed less than 12 years ago anyway.

Now I will have to find a screw plug and change that fitting.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Orlando Ortega Jr. on Wednesday, May 23, 2012 - 11:25 am:

Great Information. I've been worried about lubricating the fan bushing on my '24 Touring. I didn't know how to go about doing it since it doesn't have a grease fitting, but does have a screw like the one described above. I'm oiling it up tonight!

Jim, the drawing is a great help.

Thanks to all of you.

Orlando

ps After reading another post on the subject of fan blade cracks, I did carefully inspect both cars. Mine look good, but will now be part of my checks.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Wayne Sheldon, Grass Valley, CA on Thursday, May 24, 2012 - 01:50 am:

If your fan has new or really nice old bushings and seals, engine oil should be good.
Every fan I have ever had, the bushings were worn just enough that engine oil runs out a bit too quickly. In that case, one could rebuild the fan hub and shaft. Or, do like I do. I use 90/140 gear oil. Flows in, lubes well, and leaks a lot less. I would not use a grease fitting there unless the bushings were really shot. And then only for a very short while. (Even I will replace bushings eventually.)
Drive carefully, and enjoy, W2


Top of pagePrevious messageNext messageBottom of page Link to this message  By JohnH on Thursday, May 24, 2012 - 08:19 pm:

600W, same as in the diff.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Andrew Deckman, Ogden Utah on Thursday, May 24, 2012 - 08:35 pm:

If you have never lubed the fan before I took mine apart because the grease would not go all the way though past the fan bushing, make sure it goes past that.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jim Patrick on Thursday, May 24, 2012 - 08:41 pm:

I don't think the 600W is thin enough to flow through the small hole in the shaft. I think it will just sit there and block the entrance hole. Just too thick and sticky. Almost as thick as grease. Motor oil is about the proper viscosity. Jim Patrick


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dan Treace, North FL on Thursday, May 24, 2012 - 08:48 pm:

Jim

Motor oil works, but I like now the 90/140 gear oil. Have used 600W and it will work ok, but leaves a mess when slung around from leaking felt seal. The 90/140 when leaked out seems more T like to me than the black 660W :-)



The one had the grease fitting from a Model A, and the old grease was caked, oil is better.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Hal Davis-SE Georgia on Thursday, May 24, 2012 - 09:21 pm:

It looks like there are probably at least three different types of hubs, maybe more. Karen's '18 Touring has a grease cup on the back side of the fan bracket, so it's obvious what's supposed to go in there. My '22 TT has a screw plug on the fan hub itself. It is supposed to have oil put inside, although I have seen people recommend grease, but unless you put a grease fitting in place of the plug, I don't see how you would ever know the grease got where it was supposed to go. Motor oil is probably too thin for this application. I think 600W would be OK, as would 140. I have been using chainsaw bar oil in mine. That's when I think about putting anything at all in it. I'll probably be re-bushing it one day if I don't get a little better about oiling it. Then there's the type that Jim posted the drawing of. Jim may well be right about 600W being too thick to find its way into the hole in the rear, but I think it would be fine for the type on my truck that has the plug on the hub itself.


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