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Engine Bay Wiring Configuration

Started by hanra , Jul 03 2011 01:27 PM

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53 replies to this topic

#1 hanra

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Posted 03 July 2011 - 01:27 PM

I would like all the engine related wiring to follow the original factory route.

Does anyone have a pic or diagram of where the relevant wiring should go?

Does the purple starter wire come up round the front of the motor and is the oil/temp wiring all bunched together with it? Does this wiring run across the top of the manifold? If so what side of the carb?

Is the main B+ wiring for the body harness taken from the alternator? Starter? Or battery Pos terminal?

Thanks.

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#2 Mort

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Posted 03 July 2011 - 02:26 PM

Have you downloaded the workshop manual, i would assume it has a diagram of where to run the harness, i have it on my computer but can't seem to find it at the moment.

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#3 hanra

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Posted 03 July 2011 - 03:02 PM

Yeah Ive got a few workshop manuals at home. Im currently at work. Was just keen to know now! hahaha.

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#4 _Liam_

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Posted 16 July 2011 - 07:33 PM

Have you downloaded the workshop manual, i would assume it has a diagram of where to run the harness, i have it on my computer but can't seem to find it at the moment.

Download from where Mort?

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#5 _torbirdie_

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Posted 17 July 2011 - 12:38 AM

I would like all the engine related wiring to follow the original factory route.

Does anyone have a pic or diagram of where the relevant wiring should go?

Does the purple starter wire come up round the front of the motor and is the oil/temp wiring all bunched together with it? Does this wiring run across the top of the manifold? If so what side of the carb?

Is the main B+ wiring for the body harness taken from the alternator? Starter? Or battery Pos terminal?

Thanks.

Which torry are you talking about.

As far as i know, later alternator models had the B+ wire direct to +ve of battery and +ve battery to starter
Early generator models had only one cable to +ve of battery, generator wire to live wire connection on ignition switch.

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#6 _LH SLR 3300_

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Posted 17 July 2011 - 09:41 AM

Using a factory GHM LH Torana workshop manual as a guide, i've tried to route the engine harness on my 1974 LH with 304 V8 as close as possible to how they were originaly. The harness runs along the top rear of the engine down to the starter motor. A metal clip that bolts on with the bell housing to engine block prevents the harness from touching the L/H/S exhaust manifold. The harness continues toward the front of the engine enclosed in a plastic sheath & exits just above the L/H engine mount where it is secured with another metal clip that bolts just beneath the engine number pad. It is then routed along the top of the timing cover to the temp sensor & alternator. The alternator charge wire runs parralel with it, secured to the cylinder head by a metal clip that also serves to mount the negative battery cable. My computer skills are limited so i can't scan the factory diagram but i can post pics of my engine with the harness in place.

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#7 _LH SLR 3300_

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Posted 17 July 2011 - 10:13 AM

This is the engine bay of my 1974 LH.
Posted Image

As you can see i'm still in the final process of hooking it all up. I'm running an MSD ignition, so i had to slightly modify the ignition side of the wiring but the engine harness still follows it's original route. Here a pic of where the harness runs to the starter motor & the metal clip that retains it.
Posted Image

Using the original plastic sheath, it runs along the L/H/S of the engine block.
Posted Image

I've run the harness through the engine mount, but it runs above it originally, but still held in place by the metal clip just below the engine number pad.
Posted Image

It then runs up along the top of the timing cover. Originaly the B- bolts to the very top outter hole on the face of the cylinder head (the basic bolt hole configuration is the same for both early & VN type heads) & also attaches a metal clip that holds the alternator charge wire, which then runs along the top of the timing cover with the engine harness. As you can see i attached it to the lower bolt hole without the metal clip.
Posted Image

The B+ & alternator charge wires are originaly secured to the chassis rail just rear of the battery tray by the same type of plastic clip that holds the fuel & brake line to the R/H/S chassis near the steering column. I haven't got that far with mine, but i can post a pic once it's done.
Posted Image

As i mentioned, i got my info from a genuine GMH manual, while my configuration isn't 100% to factory specs it is a guide & i hope it is of some help. Cheers Matt

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#8 hanra

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Posted 22 July 2011 - 05:43 PM

Thats a great help Matt! Cheers for that!!!! Mine is a 75 LH SL/R 5000 so should be pretty much like yours! Cheers.

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#9 Mort

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Posted 23 July 2011 - 09:04 PM

Have you downloaded the workshop manual, i would assume it has a diagram of where to run the harness, i have it on my computer but can't seem to find it at the moment.

Download from where Mort?

It's on here, someone has a download link but i can't remember who, maybe someone else knows.

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#10 hanra

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Posted 12 April 2012 - 03:15 PM

Are the metal retaining clips for the engine bay wiring harness still available???

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#11 UCgazman

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Posted 13 April 2012 - 12:47 PM

I've seen plenty of repro's on ebay...
http://www.ebay.com....=item256e313823
http://www.ebay.com....=item2a111ffcf3

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#12 hanra

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Posted 13 April 2012 - 03:02 PM

Yeah Ive seen them to, but I have no idea if these are correct for my application???

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#13 hanra

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Name:Brad
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Posted 04 May 2012 - 08:33 PM

Does anyone know if these clips are available any where??? Or does anyone have have a few they dont need?

They appear to have a hole in the end of them for a bolt to go through.

Posted Image

Edited by hanra, 04 May 2012 - 08:34 PM.

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#14 hanra

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Posted 06 May 2012 - 02:52 PM

Even if I cant get any repro's Id gladly take 2nd hand ones so I can re-zinc em.

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#15 slr5640

XA9X

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Posted 06 May 2012 - 03:56 PM

I think mick from torana restoration parts and accessories
is going to be doing these.
from a news letter...

Some items that we are working on at the moment include;
Engine harness clips (Small and large ones) for the V8's,
Radio Bracket (small one at the back) for the LH - LX Sedans,
Accelerator cable bracket for LX 4.2lt V8's,

Edited by slr5640, 06 May 2012 - 03:59 PM.