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LH Wiring Diagram


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#26 howie1300

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Posted 26 June 2021 - 08:09 AM

The 6 & V8 wiring is the same except for the 2 extra spark plug wires. GMH didn't issue a separate diagram for the V8.

 

You are correct about the number referring to the wire gauge, although I don't believe that GMH did this for the LH diagram.

 

Dr Terry

You say they didn't issue seperate diagram for V8. My diagram says to refer to sheet 12zz-2 for 4 and 8 cylinder engine wiring, so maybe just an extra page showing only whats different. Do you have an idea what this 12zz-2 sheet is.

 

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#27 hanra

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Posted 26 June 2021 - 08:35 AM

What are you needing to know though? Everything you need is on that diagram and a U21 diagram is also available here as well.

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#28 howie1300

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Posted 26 June 2021 - 08:58 AM

Good morning Hanra I have just realised that  the 12ZZ-2  reference for 4 and 8 cyl engine wiring is also the reference for U21 Instrument, so is there only one page (12zz-2) being the wiring diagram for the U21 upgrade for both 4 and 8 cylinder, or is that a typo error and U21 should be  a -1?



#29 hanra

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Posted 26 June 2021 - 09:17 AM

U21

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#30 howie1300

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Posted 02 July 2021 - 03:51 PM

Guys from my research it appears that 3mm seems to be the smallest auto wire gauge to buy in 10mtr lengths. The manual shows most wiring ranging from 12-18gauge, which only 2.052mm down to 1.024mm, so should I just use 3mm for wiring between 12 and 18Gauge?

 

 

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#31 hanra

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Posted 02 July 2021 - 04:00 PM

Strip some of your original wire back. Take same wire into Autobarn. Compare with the rolls of Narva wire. Buy that one. 



#32 howie1300

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Posted 03 July 2021 - 07:46 AM

Thank

 

Strip some of your original wire back. Take same wire into Autobarn. Compare with the rolls of Narva wire. Buy that one. 

Thanks Hanra, I did that for some small repairs, but I have decided to replace entire looms so I thought I should make the effort to get the gauges and colours  correct, I can buy from the states, but as I mentioned in all of the large auto wiring mobs I have contacted in Australia has 3mm as a minimum.



#33 308 Sunbird

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Posted 03 July 2021 - 04:03 PM

https://www.rapidcab...utomotive-cable



#34 308 Sunbird

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Posted 03 July 2021 - 04:05 PM

https://www.rapidcab...ary-copper-wire



#35 UCgazman

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Posted 16 June 2022 - 07:47 PM

Bigger resolution -

52150531601_0fa009dfc9_o.png






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