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Apr 30, 2016 13:11:17 GMT
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They've struck again! Recently I've been trying to get my mk1 cortical running again after years of welding and generally being dormant. After difficulties getting the engine to fire I put the problems down to a lean mixture backed up by back firing and not being able to idle when running.
Thursday I removed the battery as it's currently sat next to the car on a bench till I can mount it in the boot again then set about removing the carb.
Friday the carbon was rebuilt and refitted along with a thermostat and I filled the coolant up
Today I refitted the battery as it was on Thursday before I took it off, primed the carb but when I turned the key the indicator lights (dash ones the external ones aren't fittd) were on and the battery was acting as though it was flat - it's got 12v at the battery and starter solenoid.
The indicators will turn off if the brake pedal is up - this has never happened before.
I'm very confused and now I can't get enough power to get it running so I can get the carbon and ignition set up
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1966 Ford Cortina GT 2018 Ford Fiesta ST
Full time engineer, part time waffler on Youtube - see Jim_Builds
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Apr 30, 2016 13:30:53 GMT
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Check, preferably remake all your earths!!
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Last Edit: Apr 30, 2016 13:32:54 GMT by colnerov
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bigdaz
Part of things
Posts: 201
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Apr 30, 2016 18:01:54 GMT
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Sounds like a bad earth to me to,
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bigdaz
Part of things
Posts: 201
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Apr 30, 2016 19:00:55 GMT
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You should have a good earth from the battery negative to the car body and one from the car body to the engine block obviously they need to be to bare metal
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Apr 30, 2016 19:50:24 GMT
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check the starter motor connections as well, when you say the battery is acting as so its flat how do you mean, is the starter trying to turn, clicking or doing nothing?
Try using a good thick jump lead as an extra earth from battery to starter body/
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Apr 30, 2016 22:05:51 GMT
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Got the battery round the right way? Doing that gives weird symptoms. Bought a moped the other week. Fairl new Honda four stroke. Cheap as a non runner, indicators lit all the time , clicking solenoid but no starter etc, battery had been put in backwards.....
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I'll check the earths again but everything was fine before the battery was removed? I'll check the steering column for shorts. Battery is in correctly, could be on its though as it's been run flat then charged several times. The main earth's for engine and battery are bare metal. Something isn't right though as the dials register very high very quickly but not overheating etc
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1966 Ford Cortina GT 2018 Ford Fiesta ST
Full time engineer, part time waffler on Youtube - see Jim_Builds
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The battery could be suspect, can you put a better or known battery on to eliminate that? If not it could be an earth still and it's earthing through the handbrake or choke cable. using a jump lead from battery earth to the engine as suggested can prove that.
As far the problems with the lights and other sundry items goes, you do need to check the earth,s around the car. What happens is if the lights are on for example and the earth lead for the light cluster is faulty it will find an earth through the indicator bulb and then to the indicator bulb at the front and then its earth. This will power all the bulbs on route but because the resistance is higher they will all glow dimly if you can see it at all. So you need to go round the car finding and cleaning up the earth,s.
Sorry, I don't mean to be a nag over this.
Colin
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The battery could be suspect, can you put a better or known battery on to eliminate that? If not it could be an earth still and it's earthing through the handbrake or choke cable. using a jump lead from battery earth to the engine as suggested can prove that. As far the problems with the lights and other sundry items goes, you do need to check the earth,s around the car. What happens is if the lights are on for example and the earth lead for the light cluster is faulty it will find an earth through the indicator bulb and then to the indicator bulb at the front and then its earth. This will power all the bulbs on route but because the resistance is higher they will all glow dimly if you can see it at all. So you need to go round the car finding and cleaning up the earth,s. Sorry, I don't mean to be a nag over this. Colin You're not nagging Colin - I'm not great with electronics! I'll try the battery out of my daily too I have an idea which earth maybe an issue
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1966 Ford Cortina GT 2018 Ford Fiesta ST
Full time engineer, part time waffler on Youtube - see Jim_Builds
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