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#1 Posted : Monday, 25 December 2006 7:14:50 AM(UTC)
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I am doing a HZ front and rear brake conversion on my HG Ute.

Question is what size rear wheel cylinders do I use.

I have used the stock HG booster and master cylinder.

I have a full set of new HQ rear breaks with new stock HQ wheel cylinders.
I am unsure how they will mate up to the HG booster etc.

Will the rear breaks lock up because the proportioning is out.
If so what size and type/model rear wheel cylinders do I use.

Thanks
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#2 Posted : Monday, 25 December 2006 6:17:30 PM(UTC)
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Use the std HQ wheel cyls with a HQ proportioning valve and a HG disc brake master cyl and make sure you fit the calipers the right way up. It may sound obvious but I have seen it done a few times before. We recently had a guy bring his Torana in for us t
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#3 Posted : Wednesday, 27 December 2006 1:33:24 AM(UTC)
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I has hoping I would not have to use the HQ proportioning valve as I have had new break lines made up.

Is the proportioning valve essential for HQ front breaks to make the rears operate correctly.

Can the proportioning valve be not fitted as in the
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#4 Posted : Thursday, 28 December 2006 1:56:02 AM(UTC)
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Are HQ rear brakes the same as HG rears on a disk front model? Found out the hard way that 'apparently' disk & drum fronts have different rear cylinders & pads. I assume your ute HG was a disk front to start with?

The Beige Hornet.
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#5 Posted : Thursday, 28 December 2006 8:44:41 AM(UTC)
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I am not sure if you will need a proportioning valve or not. You could start by experimenting with wheel cylinders first. A car without an ABS system should lock all wheels under hard breaking but providing the front lock just before the rear you will b
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#6 Posted : Thursday, 28 December 2006 8:51:32 AM(UTC)
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The HG disc front ran 9/16 rear wheel cyls and the shoes to suit. The HQ ran 7/8 rear wheel cyls.My HR has LH discs and calipers on it with 9/16 rear wheel cyls and shoes but it uses the std disc brake master cyl, it all works fine but it has never had b
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#7 Posted : Thursday, 28 December 2006 8:08:33 PM(UTC)
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You are on the right track HGV8 Ute.

I have HZ front callipers and rear HQ drums using the standard HQ 7/8 inch wheel cylinder and they work very well.
With so many variables and mixing and matching, it might be necessary to fine tune front/rear balan
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#8 Posted : Friday, 29 December 2006 12:27:45 AM(UTC)
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I think you will find the break you have in the message is as,if I keep jumping up and down on this seat it will break. The word you are referring to should be spelt b r a k e, this is the brake on a car. Hope I have assisted you in some small way.
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#9 Posted : Friday, 29 December 2006 5:32:20 AM(UTC)
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I wonder if Achy Breaky Heart will correct my maths homework for me......Ache is also spelt with an 'e', but far be it from me to worry about such trivial things.

The Beige Hornet.
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#10 Posted : Friday, 29 December 2006 7:14:02 AM(UTC)
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Well maths isn't my specialty but sure if you need help,I would recommend the best course of action for you is to see your maths teacher or ask your Mother and Father I'm sure they would be only to happy to assist I know I would.
Achy Breaky Heart isn't
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#11 Posted : Friday, 29 December 2006 7:33:37 AM(UTC)
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My god, nothing better to do.

Get off if you have nothing constructive to contribute to this tread.

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#12 Posted : Saturday, 30 December 2006 2:28:19 AM(UTC)
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Call the Police, someone's stealing oxygen!

The Beige Hornet.
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