Coil wire connections

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MKT
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Coil wire connections

Postby MKT » Fri Apr 12, 2019 10:21 am

Hi I have been checking the wiring on my 1968 saloon, and noticed there is one wire connected to the negative side of the coil, and two wires connected to the positive side, in the Haynes work shop manual it only shows one, both wires are running through the loom so look like they have always been there, any ideas what the second wire may be connected to, the car has normal points and condenser, and is fitted with an alternator

Ron

oliver90owner
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Re: Coil wire connections

Postby oliver90owner » Fri Apr 12, 2019 11:28 am

Is it a 6 volt coil operating on 12 volts with a ballast resistor in circuit, but bypassed from the output side of the starter solenoid? That was a common way to improve spark energy at engine start-up.

StillGotMy1stCar
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Re: Coil wire connections

Postby StillGotMy1stCar » Fri Apr 12, 2019 10:59 pm

There is a Green wire with Yellow tracer in that vicinity, it was used on earlier cars fitted with a blocked oil filter warning light, later cars are fitted with only the oil pressure light, the Green/Yellow wire is still present but not used, just left dangling.
I expect you will find this wire has erroneously been fitted to the coil.
I was going to use this wire as a pulse feed to a rev counter as the other end is conveniently behind the dash but I never got round to it.
Regards John.

IslipMinor
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Re: Coil wire connections

Postby IslipMinor » Sat Apr 13, 2019 10:18 am

Ron,

Can you post a picture of the coil connections, and also identify the cable colours and where connected?
Richard



MKT
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Re: Coil wire connections

Postby MKT » Sat Apr 13, 2019 5:39 pm

Thanks for all the replies, we had a maintenance day at my local branch today, and it was confirmed as in John's post above, it was the green yellow wire that someone must have thought was about the right length to connect to the coil, I have owned the car for two years, thankfully it never caused any problems

Regards Ron


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