right bought a new auto spark igntion coil wired it al up but not sure if ive done it right as it runs really rough so far ive got
white/pink white/yellow wire theres also another yellow wire that goes to the fuse box also on +
then white.black on -
the mini starts but sounds like its going to cut out and backfires :9
help please guys
Mayfair Coil Wiring Help
Started by
miniallsort
, Jun 22 2012 05:50 PM
12 replies to this topic
#2
cal844
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Posted 22 June 2012 - 06:26 PM
you have 2 wires the wrong way round.
#5
miniallsort
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Posted 23 June 2012 - 09:17 AM
Please help guys bump
#6
dklawson
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Posted 23 June 2012 - 11:50 AM
I have looked at your picture and I have questions. I don't know anything about your new coil. What type/resistance is it? Is it a 3-Ohm standard coil or a 1-2 Ohm ballast coil?
Your picture shows the pink wire disconnected and you said the yellow wire goes off to the fuse box. Is that correct?
What ignition do you have? I assume your distributor has points and is not electronic. I see one of the white/black wires connected and the a second white/black wire disconnected. Also, is that a black wire on the coil (-) terminal OR am I seeing the stater motor cable in the background?
Do you have a tachometer or not?
When you installed the new coil did you do any other work/repairs? Did you replace the spark plugs and/or plug wires? How about the cap and rotor?
Your picture shows the pink wire disconnected and you said the yellow wire goes off to the fuse box. Is that correct?
What ignition do you have? I assume your distributor has points and is not electronic. I see one of the white/black wires connected and the a second white/black wire disconnected. Also, is that a black wire on the coil (-) terminal OR am I seeing the stater motor cable in the background?
Do you have a tachometer or not?
When you installed the new coil did you do any other work/repairs? Did you replace the spark plugs and/or plug wires? How about the cap and rotor?
Edited by dklawson, 23 June 2012 - 11:51 AM.
#7
miniallsort
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Posted 23 June 2012 - 12:42 PM
hi thanks for getting back to me i have a accu blue spark
Ballast Ignition Sports Coil i didnt do any other repairs when i installed the coil the black/white wire is on - terminal and i have pink/white yellow/white and solid yellow wire going to fuse box on +
#8
miniallsort
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#9
Ethel
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Posted 23 June 2012 - 01:44 PM
http://www.accuspark...ting_guide.html
If yours has a ballasted coil you need to be looking at the last diagram, and running a 12 volt line directly to the distributor.
2 things bother me,
You appear to have the HT lead back to front, is it making a good connection?
Your head is painted pink!
If yours has a ballasted coil you need to be looking at the last diagram, and running a 12 volt line directly to the distributor.
2 things bother me,
You appear to have the HT lead back to front, is it making a good connection?
Your head is painted pink!
#10
miniallsort
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Posted 23 June 2012 - 02:37 PM
Yeah the ht lead connection. Is fine also I have a yellow wire coming. From the fuse box to the coil. Where do I run the 12 volt feed to?
#11
dklawson
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Posted 23 June 2012 - 06:54 PM
You did not answer my question about what else you have done to the engine at the time you fitted the new coil.
I tried looking at your video to identify a couple of things but I could not see what I was looking for. Did you have the spark plug wires off the distributor cap and/or did you replace the spark plugs? I ask because the spark plug wire routing doesn't look right unless you have some very long wires and unusual bends in them at the distributor cap. The firing order is 1-3-4-2 COUNTERCLOCKWISE around the distributor cap. #1 is typically at between 1:00 and 2:00 o'clock when you look at the front of the engine. The cylinders are numbered 1 to 4 starting with #1 being at the water pump end. So, you should have a plug wire going from about 1:00 on the dizzy cap to the spark plug near the water pump. The next cap terminal counterclockwise from #1 should have a wire going from it to spark plug #3. Is that correct?
Are you sure, really sure, this is a new ballast ignition coil? If so, there are a bunch of things to question in the wiring. Start by borrowing a multimeter. With no wires on the coil, measure the resistance across the low-tension (spade) terminals. A ballast coil will measure somewhere between 1-2 Ohms. Please confirm that before making any wiring changes.
IF and only if you identify the coil as having 1-2 Ohms of resistance, you need to change your wiring. You should have a white/yellow wire on coil (+). The other end of that wire needs to go to the 4th terminal on the starter solenoid. It is NOT supposed to go to the fuse box. No coil wires go directly to the fuse box on a ballast ignition system. The pink wire that you show disconnected should go between coil (+) and the ignition switch. The pink wire IS a ballast resistor for use with ballast ignition systems.
Do post back with what else has changed on the car immediately prior to this bought of poor running.
I tried looking at your video to identify a couple of things but I could not see what I was looking for. Did you have the spark plug wires off the distributor cap and/or did you replace the spark plugs? I ask because the spark plug wire routing doesn't look right unless you have some very long wires and unusual bends in them at the distributor cap. The firing order is 1-3-4-2 COUNTERCLOCKWISE around the distributor cap. #1 is typically at between 1:00 and 2:00 o'clock when you look at the front of the engine. The cylinders are numbered 1 to 4 starting with #1 being at the water pump end. So, you should have a plug wire going from about 1:00 on the dizzy cap to the spark plug near the water pump. The next cap terminal counterclockwise from #1 should have a wire going from it to spark plug #3. Is that correct?
Are you sure, really sure, this is a new ballast ignition coil? If so, there are a bunch of things to question in the wiring. Start by borrowing a multimeter. With no wires on the coil, measure the resistance across the low-tension (spade) terminals. A ballast coil will measure somewhere between 1-2 Ohms. Please confirm that before making any wiring changes.
IF and only if you identify the coil as having 1-2 Ohms of resistance, you need to change your wiring. You should have a white/yellow wire on coil (+). The other end of that wire needs to go to the 4th terminal on the starter solenoid. It is NOT supposed to go to the fuse box. No coil wires go directly to the fuse box on a ballast ignition system. The pink wire that you show disconnected should go between coil (+) and the ignition switch. The pink wire IS a ballast resistor for use with ballast ignition systems.
Do post back with what else has changed on the car immediately prior to this bought of poor running.
#12
miniallsort
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Posted 25 June 2012 - 04:06 AM
Many thanks. For your reply I will get back to you
#13
miniallsort
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Posted 06 August 2012 - 05:34 PM
Hi there. Just getting back into sorting out my engine problem I've measured the coil resistance and. It's 1.5 ohms. I have out the wires as follows. White/pink and yellow /white on terminal +. And black/white on - terminal. Still not. Running. Correctly really. Rough and sounds. Like its. Going to cut out
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