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Thank you Griffo and Byron.
I had this way over simplified in my head. I was just going to buy it and fit it.
I can see it would have been a mistake and I need to look at function over trying to make it look original
Cheers
Peter
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If I were to do air-con in a Holden V8 why not just do the VT commodore setup with the compressor as close as you can to the crank, having a compressor with long belts is crap and it looks crap sitting up high.
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The problem is the steering box with a Holden, Commodore has a rack so compressor can mount low.
You can make it look original, but to do it right you need to get a whole firewall cut. Last time I did this I cut a complete firewall out of a 5.0L HZ Premier wagon, put a 9” grinder through the floor along the joint below the firewall, cut through just below the bottom door hinges and through the windscreen pillars. I unbolted the LH inner guard and left it attached to the firewall by the wiring and hoses. Even grabbed the whole radiator support with condenser attached. Undid hoses and left attached to the various bits and grabbed the entire compressor and bracket, 3 row pulley, battery 0V cable. Even grabbed the passenger side engine mount as it has an aircon bracket on it. Need the vacuum tree off the engine too.
Placed it side by side with the bare tonner cabin, pulled the HZ firewall apart one bit at a time. Drilled the 32mm hole in the firewall for the harness and the 3 overlapping 16mm holes for the aircon heater holes. Plus the 3rd screw hole where the aircon fresh air vent goes (cable has two), plus the same on other side for the blanking plate.
Then bolted it all in and put dash back together.
Once engine was in and HZ inner guard was painted it went in and all A/C stuff attached to it. Modified a food radiator support to take the stuff off the HZ and on it went.
Rest is done once car is ready.
Lots of work and would be a pain in the @rse to do without the complete donor. Plus today all the vacuum controls canisters are buggered and you have try and retrofit modern plastic ones. |
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Originally Posted by: HK1837  The problem is the steering box with a Holden, Commodore has a rack so compressor can mount low.
You can make it look original, but to do it right you need to get a whole firewall cut. Last time I did this I cut a complete firewall out of a 5.0L HZ Premier wagon, put a 9” grinder through the floor along the joint below the firewall, cut through just below the bottom door hinges and through the windscreen pillars. I unbolted the LH inner guard and left it attached to the firewall by the wiring and hoses. Even grabbed the whole radiator support with condenser attached. Undid hoses and left attached to the various bits and grabbed the entire compressor and bracket, 3 row pulley, battery 0V cable. Even grabbed the passenger side engine mount as it has an aircon bracket on it. Need the vacuum tree off the engine too.
Placed it side by side with the bare tonner cabin, pulled the HZ firewall apart one bit at a time. Drilled the 32mm hole in the firewall for the harness and the 3 overlapping 16mm holes for the aircon heater holes. Plus the 3rd screw hole where the aircon fresh air vent goes (cable has two), plus the same on other side for the blanking plate.
Then bolted it all in and put dash back together.
Once engine was in and HZ inner guard was painted it went in and all A/C stuff attached to it. Modified a food radiator support to take the stuff off the HZ and on it went.
Rest is done once car is ready.
Lots of work and would be a pain in the @rse to do without the complete donor. Plus today all the vacuum controls canisters are buggered and you have try and retrofit modern plastic ones. I've installed many of these & repaired 100s, everything from HQ to a WB, but the only "buggered" vacuum diaphragms (canisters ?) that I have seen are the bi-level face control ones fitted to the WB Statesman version. The bits most often forgotten are the blank-off plate for the RH under dash fresh intake & the replacement lower dash facia. These don't have the cut-outs for the deleted fresh air cab;e controls. The hardest to find new part is the 3-way vacuum heater tap for the HQ/HJ (pre-ADR27A) system. Dr Terry |
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I’ve had plenty of the vacuum operators fail. I think there is three of them plus the heater tap. I have three complete integrated A/C setups in the shed (a HQ, a HJ and an LH) and last I checked them each one had a failed vacuum operator. I think I only have a handful of NOS WB ones left. That HQ-HJ heater tap is hard to find, last NOS one cost me over $300 for my HJ Prem. |
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Re that 3 way vac operated for HQ's / HJ"S.....Some use the Vectra VAC 3 way...Not sure of how well they work tho. https://www.ebay.com.au/...baaae:g:o8AAAOSwzaJX2PFB
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