davrus
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| posted on 4/6/07 at 10:32 PM |
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Ignition coil
How do i know what coil i have already got on my car ie normal/ballest.
Also how can i work out wheather i need a ballest or normal
Does that make any sense.
It is a 1976 ford crossflow
Cheers
Check out my website http://www.thedave.co.uk/
Feel free to sign my guest book in the links page.
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RichieW
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| posted on 4/6/07 at 11:08 PM |
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burtons catalogue page 66 says use a multimeter on to check the voltage on the positive wire of the coil with the ignition on. 9v means ballast. 12v
means no ballast
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britishtrident
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| posted on 5/6/07 at 06:54 AM |
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That will only work if the system already has a ballast resistor wired in AND the points are closed (or shorted by a jumper). --
If the coil is a Ford/Fomoco/Autolite type with round threaded post termminals it is 99% certain it requires a ballast.
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caber
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| posted on 5/6/07 at 07:50 AM |
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Check the resistance between + and - will be 3 -4 ohms for a 12V coil and 1 -2 ohms for a ballast coil, though you might also get a low reading with a
"sports" coil.
Caber
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Hasse
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| posted on 5/6/07 at 10:40 AM |
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If I´m not wrong, also the 12v coil is <1ohm if Bosch inductive sensor electronic system is used.
(Called fast charging high performance coil by Bosch).
/Hasse
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davrus
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| posted on 5/6/07 at 11:46 AM |
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If i measure the ohms between + and negative i dont get any reading at all.
If i measure it between + and the h.t point i get 8.7 ohms.
Any ideas why i dont get any thing between the + and - terminal?
Cheers
Check out my website http://www.thedave.co.uk/
Feel free to sign my guest book in the links page.
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