Belt drive primary clutch basket wobble

rockitdoc · Nov 3, 2019

So, how much should the clutch basket wobble? When I Hold the basket along it’s diameter, I can pull it in and out from left to right about 1/8” or so. That seems like too much, but I have no reference as to whether that’s excessive, and if so, what to do about it.
Thanks, in advance.
s

swooshdave · Nov 3, 2019

Brand?

rockitdoc · Nov 4, 2019

swooshdave said:
Brand?

The one from cNw.

maylar · Nov 4, 2019

Is that with the nut secured, or just loose on the mainshaft? Mine doesn't wobble.

Triton Thrasher · Nov 4, 2019

Is the nut on the other end of the shaft tight?

rockitdoc · Nov 4, 2019

maylar said:
Is that with the nut secured, or just loose on the mainshaft? Mine doesn't wobble.

Nut on clutch basket side is secure.

no750 · Nov 4, 2019

i also had problems with clutch wobble due to a worn mainshaft. clutch center by AN was new.

I used loctite 660 on junction mainshaft-clutch center with good results. pruduct is pricy.

the hard part is to get the clutch aligned in the right position within time.

for dismantling it is needed to heat the area to ~180°C with e.g. a propane torch.

not a very comfortable procedure, but this was working fairly well for me.

swooshdave · Nov 4, 2019

Is main shaft straight? Is the basket wobbling or the shaft?

rockitdoc · Nov 6, 2019

Wobble is in the ball bearings which allow the basket to rotate independent of the main shaft gear. All good. No worries.

swooshdave · Nov 6, 2019

rockitdoc said:
Wobble is in the ball bearings which allow the basket to rotate independent of the main shaft gear. All good. No worries.

Um, what?

rockitdoc · Nov 7, 2019

swooshdave said:
Um, what?

Did I mis-speak? The basket has to move independent of the gearbox, right?

maylar · Nov 7, 2019

But the bearing shouldn't wobble.

rockitdoc · Nov 7, 2019

maylar said:
But the bearing shouldn't wobble.

Wobble might be overstating the movement. There is some 'play' in the bearings. Maybe 8-10 thou, but I'm guessing.

maylar · Nov 7, 2019

This is a question to ask Matt at CnW, I think.

rockitdoc · Nov 7, 2019

I did. It's normal.

cNw · Nov 7, 2019

The only connection between the clutch basket and clutch center is a ball bearing. When you put pressure on the outer edge of the clutch basket, you will feel some movement in and out. It’s certainly not a lot but noticeable. All clutch baskets, stock or belt drives (that I am aware of) use a ball bearing in this application

Matt

SteveA · Nov 7, 2019

Norman White told me....if there is no play in the bearing there is something wrong....it should 'wobble'....a bit!

swooshdave · Nov 7, 2019

cNw said:
The only connection between the clutch basket and clutch center is a ball bearing. When you put pressure on the outer edge of the clutch basket, you will feel some movement in and out. It’s certainly not a lot but noticeable. All clutch baskets, stock or belt drives (that I am aware of) use a ball bearing in this application

Matt

Granted but he initially said 1/8' and then it went down to .008".

rockitdoc · Nov 7, 2019

cNw said:
The only connection between the clutch basket and clutch center is a ball bearing. When you put pressure on the outer edge of the clutch basket, you will feel some movement in and out. It’s certainly not a lot but noticeable. All clutch baskets, stock or belt drives (that I am aware of) use a ball bearing in this application

Matt

In addition, if there is any play between the clutch center gear and the main shaft, it will add to the total movement. On mine, that play between the clutch center and main shaft is probably about 5 thou.

Belt drive primary clutch basket wobble

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