Ric82

Active Member

• Nov 23, 2023

• #1

Hi Guys

Im after a bit of advice on the wiring loom for the alternator mine was running down the side of the engine next to the Diesel Injector Pump and then through the engine block (below the Thermostat housing and behind the water pump to the alternator. Safe to say it's melted through lucky I caught it before anything caught fire.

Can anyone share any pics of the correct location to route the loom to the Alternator and Starter Soliniod, please (I now have a new Auto Sparks loom with the 2x Brown, One Water Temp, Alternator Plug and Oil Pressure Switch.


Many Thanks
Richard

 

tottot

Well-Known Member

• Nov 23, 2023

• #2

Recon that is the original way you have, on my series 3 now alternator wires go straight to starter being careful to avoid/keep away from exhaust. Get some split conduit to cover likely damaged areas.

 

Bobsticle

De Villes Advocaat

• Nov 23, 2023

• #3

Yours was in the correct location. There shouldn’t be anything approaching the temperature needed to melt a loom on that rout.

 

Ric82

Active Member

• Nov 23, 2023

• #4

Bobsticle said:

Yours was in the correct location. There shouldn’t be anything approaching the temperature needed to melt a loom on that rout.

Click to expand...

Errm maybe it was a loose wire or something else this is what it looks like.

 

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Bobsticle

De Villes Advocaat

• Nov 23, 2023

• #5

I’d go for a short before looking at heat.
There should be P clips right round the rout but it does touch the cylinder head between them.

 

Ric82

Active Member

• Nov 23, 2023

• #6

Bobsticle said:

I’d go for a short before looking at heat.
There should be P clips right round the rout but it does touch the cylinder head between them.

Click to expand...

Yeah there was a p clip either side of the water pump on the timing case holding the loom, only reason I found it was because I jumped in it to start it and it clicked like the solinoid was stuck, after hitting it with a hammer and no difference I start wiggling the wires and then a load of smoke and sparks came from the water pump area and then after abit more investigation I found that.

 

Bobsticle

De Villes Advocaat

• Nov 23, 2023

• #7

Ric82 said:

Yeah there was a p clip either side of the water pump on the timing case holding the loom, only reason I found it was because I jumped in it to start it and it clicked like the solinoid was stuck, after hitting it with a hammer and no difference I start wiggling the wires and then a load of smoke and sparks came from the water pump area and then after abit more investigation I found that.

Click to expand...

Think there should be a couple down the side anorl near the injectors.
Pain in the arris when your adjusting the pump the loom always gets in the way of the rear nut

 

Dippypud

Never Knowingly Understood

Full Member

• Nov 23, 2023

• #8

Ric82 said:

Errm maybe it was a loose wire or something else this is what it looks like.

Click to expand...

The old wiring gets a bit green on the inside when it's that ancient, this gives a rise in resistance and heat builds, a side effect of Lucas, God of Darkness ...

 

W

Wildefalcon

Well-Known Member

• Nov 24, 2023

• #9

Old brittle cable sheathe, corrosion running down the copper stands, etc, etc.

Replace, same route, use an outer sheathe, and seal the connectors with heat shrink over silicone grease.

 

Ric82

Active Member

• Nov 28, 2023

• #10

Hi Guys Quick update wiring loom replaced and all up and running with no issues and using the original path for the wiring loom.

Thanks for all the advice and confirmation.
Richard