Clutch fork and pivot ball adjustment?

[Gozza1]

Hi all,

I am getting the box ready to install rebuild engine.

aussie 4 speed , pull clutch cable, 253.

I was wondering how do I adjust the fork clutch and pivot ball while the box is still outside.

How far should the pivot ball be out before I tighten it with that nut?

Also which parts here should be lubricated with grease before it is installed?

Thank you all

 

[vc commodore]

The pivot ball has a nut that locks it in situ...Undo that nut and you can unscrew the pivot ball.

When I do mine, I have the motor and gearbox in the car, with the cable connected and adjust the pivot ball until the clutch pedal is level with the brake pedal...

 

[shane_3800]

Do it all when it's in.
That is a final adjustment.

 

[Smitty]

Hi all,

I am getting the box ready to install rebuild engine.

aussie 4 speed , pull clutch cable, 253.

I was wondering how do I adjust the fork clutch and pivot ball while the box is still outside.

How far should the pivot ball be out before I tighten it with that nut?

Also which parts here should be lubricated with grease before it is installed?

Thank you all

.. just follow the GMH service manual steps

lots of pics to go with the words, its easy peasy

 

[Gozza1]

Thanks gets I will do that, the metal cover can come off and I can adjust it then.

 

[Smitty]

Thanks gets I will do that, the metal cover can come off and I can adjust it then.

don't forget the pedal... you have to adjust that too (the manual shows this)
so the pedal height is right before you adjust down below

 

[DavesSV6Tonner]

And if you are converting from 6cyl to V8 then you will need the V8 clutch pedal.

 

[Smitty]

And if you are converting from 6cyl to V8 then you will need the V8 clutch pedal.

.. a big YES to that comment.

GMH had to deal with different throw out lengths for the clutch to work (given the bigger bellhousing, longer gearbox on V8s)
and they did that with a different (to 6cyl) clutch pedal on V8s

A 6cyl clutch pedal working a V8 clutch.. ? does not work, end of story

 

[Lacksballs]

There is a fair bit of science getting the clutch to disengage correctly in a conversion.
V8‘s need the right pedal box 100%, the clutch cover/plate/release bearing/carrier/fork all need to be in good condition (if your budget extends to it I would replace all the clutch components) if the components are worn you need more travel to disengage.
Then the fork/adjusting ball should be adjusted to a point that its just over centre when the clutch is fully open (pedal on the floor)
The correct spacers & adjustments of the cable will enable you to fine tune the “bite point”.
I had my clutch pedal adjusted just above the height of the brake pedal at rest.
My only issue was the plastic adjuster on the Oe cable was close to the extractor, hence why I went hydraulic in the end.

 

[Gozza1]

Hi all,

Its not a conversion, I am putting a new rebuild 4 speed back into the v8 factory car