[Mgs] 80B, melted white-green wire from ignition switch

PaulHunt73 paulhunt73 at virginmedia.com
Wed Jun 1 01:22:12 MDT 2022


A bad engine/gearbox earth strap will cause the heater, choke and 
accelerator cables to get hot but not 'fry' them in the same way that 
electrical wires do when they short, and it won't cause the heater cable 
to become disconnected.   In theory the temp gauge capillary would be 
affected as well but I've never heard of it. You would be unlucky for a 
disconnected heater cable to cause a short, most electrical connections 
should be protected as there are a lot more earthed metal parts behind 
the dash than just that cable.  I often see the backs of bullets 
sticking out of the connector sheath because they haven't been pushed 
home properly, but the plastic sheaths on the connectors available today 
slide and can expose even correctly fitted bullets, unlike the rubber 
sheaths on originals.  I did hear of someone blowing a braided clutch 
hose when the earth strap failed.  They had been aware of slow cranking 
for a while but didn't investigate it properly ...

As someone once said "Listen to your car, it is talking to you." I.e. 
get used to how you car sounds, feels, looks, smells  and investigate 
any changes BEFORE you get a breakdown.

PaulH.

On 31/05/2022 21:06, Robert's New iPad wrote:
> 	Fried heater cable is usually because the earth strap(s) from engine to body are not conducting properly.
> 	I have two on my GT, and check their fasteners a couple of times each year.
> Bob
>
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