Clutch Housing nut reverse threaded?

[JimF]

Is the nut holding the clutch housing a reverse thread?

in_the_cases3.jpg

I am getting ready to remove it so as to implement the kick-start repair....

(Yes, I see that I forgot to get the last clutch plate off.)

Thanks!

Jim

[Jordan]

No, the only LH threaded nuts are the ones for the bevel gears on the camshaft and crankshaft.

Jordan

[JimF]

Thanks Jordan.


Is there a torque value for this nut when I go to put it back on?


Jim

[Jordan]

Not that I know of.

Jordan

[Ventodue]

"Tighten" is what the manual says, ... Jim . {But around 160ft/lb (215Nm) is about right for a 16mm nut.}

EDIT: Ignore this. I can't believe it's right, even tho' this value comes from the table contained in the ISO 898-1 - see message below.)

Just make sure you Loctite it (in which case, you can think about reducing the torque value by 10% or so). Even with the tab washer, the nuts can come loose. DAMHIK, but ...



Tony Brancato used to (still does?) make a modified tab washer. Not sure if it really makes a difference ...



Ciao

Craig

[Eldert]

the problem of the nut that holds the clutch centre in place coming lose is a common one .

the problem is on the inside on the inputshaft . there is a 2 mm spacer between the bearing and the shaft .
there is a nice radius on the shaft where it goes from the thicker part of the shaft to 20 mm .
the 2 mm spacer is square ( no radius ) so the spacer is not all the way home but rests on the radius
in due time the spacer gets a little bit of slack and that al the nut needs to work itself lose

when i put a engine together i make a radius on the 2 mm spacer so the spacer rest on the thicker part of the shaft

Eldert

[Ventodue]

the problem of the nut that holds the clutch centre in place coming lose is a common one .

the problem is on the inside on the inputshaft . there is a 2 mm spacer between the bearing and the shaft .
there is a nice radius on the shaft where it goes from the thicker part of the shaft to 20 mm .
the 2 mm spacer is square ( no radius ) so the spacer is not all the way home but rests on the radius
in due time the spacer gets a little bit of slack and that al the nut needs to work itself lose

when i put a engine together i make a radius on the 2 mm spacer so the spacer rest on the thicker part of the shaft

Thanks Eldert - always good to have an explanation. It's this one, yes?



Ciao

Craig

[Single duck]

Yep, got them online - though there's problems with the pics on the site at the moment. . Engine parts > Clutch and gearbox.

[Eldert]

Hi Craig

Yep , that the one

Eldert

[Ventodue]

Thanks Eldert.

Ciao

Craig