Scimitar Wiring

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jag12
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Scimitar Wiring

Post by jag12 » Tue May 15, 2018 8:56 pm

Why is it that Reliants seem to be affiliated by the wiring bodgers more than othe cars
I know that earths are a problem with no metal body work but these cars seem to be a magnet for scotchloks and rats nests of wires

The GTC has its share of electrical gremlins in spit of a supposed major restoration but today's discovery reaches a new level
The car has a 5 speed gearbox conversion and by accident found that the overdrive switch has been used as a fan override even with the ignition off
Flicked it by mistake today as I got into the car and noticed that all the dials came to life.
Started car,switched on fan and turned off ignition, engine carried on running until fan switch turned off !!
Hmm run engine up to temp until fan cut in,turned off ignition but engine carried on running.Engine cooled down, fan stopped and so did engine !!

Have no idea how this has been wired but dash strip down and rewrite now a priority :w


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scimjim
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Scimitar Wiring

Post by scimjim » Tue May 15, 2018 9:34 pm

Sounds like they’ve used the wrong wire from the ignition switch, to power the fan via the overdrive switch?


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Scimitar Wiring

Post by philhoward » Tue May 15, 2018 9:44 pm

They’ve got one side of the switch to battery positive and the other to the fan somehow - I suspect a self-feeding relay is involved.


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jag12
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Scimitar Wiring

Post by jag12 » Tue May 15, 2018 11:19 pm

Flicking the switch,you can hear a relay activate and all ignition controlled functions come to life along with the fan.
Initial fault I was investigating was loss of gauges and indicators while driving then coming and going intermittently. Seem to have sorted that by cleaning up fuses


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Scimitar Wiring

Post by Rev Light » Thu May 17, 2018 1:06 pm

Quite frankly the best way to ensure you wiring is right after 40+ years is to go through it yourself.

Whilst many bodges might well have been done by their owners to save a penny, many more would have been carried out by 'professionals'.

Anyone who is relying on a 3rd party to maintain their car, needs to be very careful. I have many old bills for my SE5A, totalling up to multiples of thousands of £s, but I sometimes wonder if they were working on the same car!

I remove any scotch block I find, as a matter of principle.

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