Cooling Fan Hub

[Hugo Stiglitz]

So I've searched and searched, but still have yet to answer all my questions. I bought a new hub assembly for my cooling fan. I have a couple of questions about it.

#1. Does the hub (with the woodruff key slot) get pressed onto the output shaft on the alternator? Mine is a tight fit...

#2. What is the order of the hub parts? I've got 4 parts all together. The hub, a large flat washer that has the same inner hole shape as the hub, a large washer that has 2 sides (if a circle has sides) kind of bent up, and a large nut. I also bought a shim set. What washer do I need to use? According to the picture below, I should be using both. When I am trying to assemble it the way the picture shows, there is no way it will all fit together. Is one washer for a earlier fan rather than a doghouse fan?

And FYI, I'm running a welded and balanced fan in a scat doghouse shroud.

Help is greatly appreciated!
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'63 slow n low build thread...

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[MJulien]

The shims allow you to shim the fan outward if needed. Sometimes they can rub on the fan shroud with out them. They go between the hub & fan.

The lock washer (curved washer) goes on the fan after the fan is mounted on the hub , then the nut to secure it.

You may have to assemble it a couple of times to get it shimmed for proper clearence.

The hub should go on freely (not sloppy). Try cleaning the shaft first with emmery paper or fine sand paper. Make sure the key is seated all the way into the slot.

[Hugo Stiglitz]

Thanks! Helps me with the hub fitting on the shaft.

What I have is this kit below. So if I understand correctly, I do not need to use the flat washer...

I should only need the hub, lock washer and nut correct??
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'63 slow n low build thread...

Jay Leno's Garage

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[Eric&Barb]

You need the shims to space the fan away from the gen tin. See the Bentley manual for proper amount.
Which size fan are you using? Measured between the discs that is.
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[OLD VW NUT]

Proper shim size is .07-.08" between pulley and gen/alt backing tin - for all models IIRC.
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71 Ghia Coupe - stock body - no rust! Powered by a 2110 W/Dual HPMX 44's - Rancho Pro Street Transaxle - A/C by Gilmore

Other car - 2013 VW Golf TDI

[Hugo Stiglitz]

I've got the shims, I'm not worried about being able to space it. I'm worried about the order of the hub parts. It seems there is something extra...

I understand it will need to be shimmed to sit properly in the fan shroud.
_________________
'63 slow n low build thread...

Jay Leno's Garage

(o\ ! /o) | o \/ o | (o)=|=(o) [o\|_|_|/o]

[Hugo Stiglitz]

After non-stop searching...


Link

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'63 slow n low build thread...

Jay Leno's Garage

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[DSVW]

Hi,

I have a 1966 bug with a 6 volt generator and just learned that a ’66 bug with a 6 volt generator only has one backing plate, not two.

I am trying to figure this out as well, and I can’t make out what is going on in the video.

I have a thin spacer, a large flat washer, a wavy washer a hub (I think that is what you call it) and a special nut.

I should have taken pictures because I have no idea what order they go.

I have also read there is a slot at the bottom of the plate that is attached to the generator and is supposed to be facing down. I do not have a slot and I assume because the 6 volt generator only has one backing plate.

I can’t seem to find any photos or video that I can make out of this procedure.

Thanks.

[Eric&Barb]

[DSVW]

Yes,

I have the fan with the holes in it, so I believe my fan and shroud are all original to the car. Everything is complete with working flaps.

I literally just got the unit together and it spins freely and is not rubbing anywhere.

Thank you for your help.
Now I need to get the generator/regulator and everything else back in to the shroud.

I bought a rebuilt Bosch generator, and hopefully it lasts. It was rebuilt by BBB industries which is changing its name to Terrepower.
It is the same generator as the one I pulled out.

I know, I know, it all depends on who did the rebuild but it does have a 3-year 36K mile warranty. My old one is completely shot, looks like melted wires inside and the armature is probably shot. Brushes are ok though. i will keep it and send it out later for a complete rebuild.

The generator didn't come with any paperwork, so I don't know if I need to polarize it or not.

[Eric&Barb]

Good! Did you get he proper spacing from the rear of the fan to the gen tin???

Just polarize it.

Find a local generator/starter rebuild shop and have your old one rebuilt by them. That way you will have a spare on the shelf.
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In Stereo, Where Available!

[DSVW]

I am not sure about proper spacing. I used the same rig; washers, shims nuts, that I took off the old one.
I will insert it in the fan shroud tomorrow to make sure there is proper clearance.

[Eric&Barb]

[DSVW]

Thanks. Just measured it and I am just about dead on at 2mm