blockhead_rich
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| posted on 5/5/06 at 08:01 PM |
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Help - Ignition switch problem!
So I've practically finished the wiring - or so I thought and when I go to connect the battery for the first time the starter motor roars into
life. 
I've tried swapping the cables round but still no difference!
I'm using a Sierra column which has the following wires connected;
50 (Black blue)
30 (Red)
Accessory (Yellow)
15 (Yellow black)
The Velocity loom has the following wires (exact text from my wiring instructions);
Supply terminal - HD Brown, 2 x brown (perm live)
Ignition live terminal - white's (switched live)
Starter terminal - white grey (momentarily live)
I connected the perm live to the 30 (red) on the ford ign switch. Ignition live to 50 (black blue) and starter terminal to 15 black yellow.
What have I done wrong? I've tried swapping 50 and 15 round with no difference (starter still starts without turning the key). I've
tried figuring out what's wrong with my multimetre but no joy and I wanted to start it up for the first time this weekend too!
Any help would be greatly appreciated!!!!!!
Rich
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shortie
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| posted on 5/5/06 at 08:08 PM |
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http://www.locostbuilders.co.uk/viewthread.php?tid=39828
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shortie
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| posted on 5/5/06 at 08:29 PM |
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So, it should be...
30 (red) - Perm live
50 (Black blue) - Start
15 (Yellow black) - Ignition
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daviep
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| posted on 5/5/06 at 08:35 PM |
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This is probably too basic but have you checked that the ign. terminal is actually energising when you connect the battery and it's not just a
stuck starter solenoid. If it's awkward to check just remove the small tail from the starter and see what happens. Best of luck.
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blockhead_rich
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| posted on 5/5/06 at 09:35 PM |
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Just been beavering away trying to find out what's going on.
When I disconnected the feed to the ignition switch and connected the battery - same problem - starter motor fires into life. I then disconnected the
small starter solenoid wire and when I try to connect the battery there is just a BIG spark - so what's wrong as I know it shouldn't be
like that!
Rich
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JoelP
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| posted on 5/5/06 at 09:44 PM |
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sounds like your solenoid is perminantly closed. Do you have a multi meter, to measure the resistance between the two big wires?
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Danozeman
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| posted on 5/5/06 at 10:15 PM |
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Sounds like the solenoid is stuck on. Can you get hold of a different starter to try.??
Disconnect the starter and use a multimeter or light bulb to see whats happening down there. If the solenoid feed is only live when they key is
turned to starter is deffo at fault.
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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blockhead_rich
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| posted on 5/5/06 at 10:16 PM |
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Two big wires? All I've got is a small wire and a large wire terminal which is connected to the battery and the alternator.
So what should I be looking for in terms of values (resistance??) and would it potentially require a new starter motor?
Rich
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Peteff
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| posted on 5/5/06 at 11:41 PM |
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Try hitting the solenoid with the hammer, not too violent though. It may just be stuck but they usually stick off not on.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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daviep
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| posted on 6/5/06 at 04:01 AM |
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On the solenoid there are 3 terminals, 2 large and 1 small. The small terminal is connected to the ign. switch, 1 large terminal is connected to
battery +ve and the alternator while the other terminal has a short cable which is connected to the starter (internally). If the solenoid was jammed
in the energised position you will get continuity between the 2 LARGE terminals. Should this be the case it is easy to strip the solenoid and give it
a clean up. The solenoid performs 2 functions 1: moves pinion in to mesh with ring gear. 2: acts as a large relay switching full battery current to
the starter when the pinion is meshed.
Sorry if I'm teaching granny to suck eggs.
[Edited on 6/5/06 by daviep]
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