Clutch centre nut

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Clutch centre nut

Postby MalcW » Tue Nov 05, 2019 9:32 am

Hi All

Does anyone know the size of the clutch centre nut on an AMC clutch/gearbox? A friend needs to remove his clutch, but neither of us has a socket or box spanner that will both fit inside the recess, and fit the nut. we have a clutch extractor, we just need to get the nut off first.

Thanks,

Malc

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Re: Clutch centre nut

Postby les ward » Tue Nov 05, 2019 10:53 am

Did mine yesterday, which a 7/16 whit socket fitted.

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Re: Clutch centre nut

Postby MalcW » Tue Nov 05, 2019 10:58 am

Hi Les

That's a bit worrying; I tried a 7/16 Whitworth with no joy. Hmmm...

Thanks,

Malc

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Re: Clutch centre nut

Postby Janet » Tue Nov 05, 2019 2:10 pm

Before I put in my two penn'orth, I will state that I am well aware that the nut on a heavyweight clutch is not the same as on my lovely lightweight, but I don't know where the differences are. One may have a bigger hole in the middle for the gearbox thingy to go through, or be deeper, or require a different sized spanner than mine. On the off-chance that the spanner sizes actually match, the original nut on the lightweight is a 23/32" AF. Yes, really!
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Re: Clutch centre nut

Postby raffles » Tue Nov 05, 2019 7:26 pm

I think you are trying to use 1/2" drive sockets a 3/8 drive one will fit
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Re: Clutch centre nut

Postby Duncan » Tue Nov 05, 2019 11:42 pm

From memory "040373 CLUTCH RETAINING NUT" is a reduced width nut, unfortunately it is possible to fit a normal nut in its place but it leaves little room in its recess for a socket, you may have to find a thin walled box spanner (not sure without checking if a plug spanner will fit here) or grind a sacrificial socket down then replace with the correct nut and spring washer.

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Re: Clutch centre nut

Postby GOLDSTAR » Wed Nov 06, 2019 8:30 am

yes you at correct the nut is of reduced size, I took an age locating one when I built my bitsa only to later find TWO correct ones laced together in the box of bits :headbang: ! kind regards

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Re: Clutch centre nut

Postby MalcW » Wed Nov 06, 2019 9:30 am

raffles wrote:I think you are trying to use 1/2" drive sockets a 3/8 drive one will fit
Tony


Hi Tony. No, I was using a 3/8 drive Whitworth. It fitted inside the clutch centre, but not over the nut.

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Re: Clutch centre nut

Postby ajscomboman » Wed Nov 06, 2019 11:41 am

You may have to find a box spanner to fit the nut. They are thinner than sockets but only just and then when you've got it off buy the correct reduced nut and save the stress. Fun when PO's do things like that isn't it!

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Re: Clutch centre nut

Postby MalcW » Wed Nov 06, 2019 12:17 pm

ajscomboman wrote:You may have to find a box spanner to fit the nut. They are thinner than sockets but only just and then when you've got it off buy the correct reduced nut and save the stress. Fun when PO's do things like that isn't it!


It's one of life's true pleasures!

Malc

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