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HZ Clutch Issue - Rat Trap/Half and Half/Cable?

I am doing an engine swap in a few weeks (202 red for another less dying one) and the clutch has seen better days so I thought I should throw a new one at it while I have the engine out, but I need to make sure to get the right type of clutch (push or pull).
I'm having trouble trying to figure out what my clutch setup is. I've been doing as much research and reading as I can but all I've been able to figure out is that they switched to full cable halfway through the HZ run, which is right when my car was built (Dec '78).
The issue I have is that my car was converted to 4 on the floor from 3 in the tree at some stage and I don't have a contact for the person who did the conversion. I'm not sure which of the three setups I have and I can't seem to find any easy way of identifying between them. How do I tell which type I have? I'm not sure if I'm missing something really simple or not. Most of the Holden mates I've asked have no idea as they are auto drivers.
Any advice or help would be greatly appreciated.
Cheers.

Liam

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Comments

Is it cable operated, mechanical or hydraulic?

Cable is pull type and mechanical and hydraulic are push type.

Post a photo of the mechanism on the bellhousing if you are unsure what type you have.

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Cheers
David

aka hq308belmont

www.hq308.com

My Shed

Definitely not hydraulic. I'm guessing it will be either full cable or Half/Half. I'll try to get a decent picture when I get home.

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How'd you go with pics? Should be able to tell straight away with a pic on here.

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Apologies for not getting back to this. We just did the engine swap and I've got a photo of the inside of the bell housing. From what I can gather, this is a push type clutch yeah? As in, the throw-out bearing (I realise it is the wrong way around in this picture) pushes the diaphragm towards the block rather than pulling it away, is that correct? The fork is pulled by cable to the firewall.

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Image icon HZ Aussie 4 Speed Gearbox.jpg5.57 MB
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Yep that's a pull type.

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David

aka hq308belmont

www.hq308.com

My Shed

Pull? Are you sure? I thought the clutch type was determined by the action of the throw-out bearing on the diaphragm, not the action on the clutch fork.

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Def a pull type clutch fork and bellhousing, pull type. This is push type: https://i.ebayimg.co...$_20.JPG They all "push" on the throw out bearing, otherwise the clutch would have to work backwards.

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The throw out bearing always pushes on the clutch diaphragm, whether the cable is pulling the fork or the mechanical linkage is pushing the fork.

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Cheers
David

aka hq308belmont

www.hq308.com

My Shed

your wrong mate a pull clutch pulls the diaphragm spring not pushes it like an old holden does 90's Jackaroos have pull clutch as an example. If one is to be picky I thought the same also for years

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Except we're talking about a standard clutch on the back of a red motor Holden, they ALL push the diaphragm spring. The only difference is whether they pull or push the fork.

Holden clutches have commonly been referred to as a push or pull type for a long time, I don't think the "pull" type clutch you're referring to was very common back in the day.

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Cheers
David

aka hq308belmont

www.hq308.com

My Shed

Another question on this subject: after re-installing the linkages, I found that reverse isn't sitting quite right. The slot for the shifter is sitting slightly too far forward and is difficult to get into gear. Is that just a matter of adjusting the thread on the reverse linkage arm?

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