HOW TO CHANGE FROM A BALLAST COIL SYSTEM TO A STRAIGHT 12V COIL using the original 45D DISTRIBUTOR
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Stage 1 ;
IGNITION SETUP WITH BALLAST COIL AND STANDARD 45D DISTRIBUTOR BEFORE MODIFICATION .
{ 1A } Remove the wire coming from the distributor at the NEGATIVE { - } side of the coil { Marked { A } on above drawing } and keep it handy to re- attach to new coil .
{1B }
Remove the wires going to the POSITIVE { + } side of the coil { Marked { B } on above drawing } and tape/blank them up so that the live ends cannot touch anything .
Now tie them up out of the way .
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Stage 2 ;
Remove coil and replace with a straight 12v coil .
I would recommend using the performance coil ;
https://sites.google.com/site/fifersrelianthintstips/coils/high-performance-straight-12-volt-coil
.
The following link will give a list of part numbers for the standard coils but my preference is the performance coil above ;
https://sites.google.com/site/fifers...t-12-volt-coil
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Stage 3 ;
Make a new feed wire with a SINGLE FEMALE on one end , which will attach to the POSITIVE { + } side of the coil , and a PIGGYBACK CONNECTOR * on the other side of the wire which will attach to the Fusebox .
{* A PIGGYBACK CONNECTOR is just a name for a connector to which you can attach another wire . This means that you can supply/receive power to 2 wires from the one terminal }
Piggyback connectors are available from many companies including ;
Vehicle Wiring Products Ltd.
9 Buxton court,
Manners industrial estate,
Ilkeston,
Derbyshire,
DE7 8EF.
UNITED KINGDOM.
Telephone: 0115 9305454 Fax: 0115 9440101
E-mail: Sales@vehicleproducts.co.uk
http://www.vehicle-wiring-products.eu/
The connectors are shown on the Non Insulated Terminals page at the following May 2013 link ;
http://www.vehicle-wiring-products.eu/section.php/72/1/non-insulated-terminals
The following is the extract from the May 2013 link above ;
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http://www.vehicle-wiring-products.eu/product.php/445/piggyback-connector
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Alternatively you can use Stationary Blades on the fusebox as per ;
SBC 2 into 1 terminals
http://www.vehicle-wiring-products.eu/product.php/449/stationary-blade-2-into-1
or SBD 3 into 1 terminals
http://www.vehicle-wiring-products.eu/product.php/450/stationary-blade-3-into-1
.
If using stationary blades then you just put a single female spade on each end of the new wire instead of the piggyback shown in the photo above
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Stage 4 ;
At the bottom of the fusebox REMOVE the WHITE WIRE where the Yellow line is touching at POSITION 1
Attach the piggyback end of your new wire to the terminal where the white wire was .
.
Click on photo to enlarge
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Stage 5 ;
Now attach the original WHITE WIRE to the piggyback connector you have just connected to the fusebox .
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Stage 6 ;
Attach the SINGLE FEMALE end of your new wire to the POSITIVE { + } side of the coil
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Stage 7 ;
Re-attach the original wire coming from the distributor to the NEGATIVE { - } side of the coil
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Stage 8 ;
MAKE SURE THAT THERE IS NO POWER TO THE COIL WHEN THE IGNITION IS SWITCHED OFF
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Stage 9 ;
Make a copy of your new wire and carry it as a spare .
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WIRING DIAGRAM FOR NEW STRAIGHT 12 VOLT COIL AND STANDARD POINTS DISTRIBUTOR .
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You have now bypassed the ballast system and you now know that the power is coming direct from the battery via the ignition switch .
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NOTE ;
If you wish to return to the original ballast setup it is very simple .
Since everything is visible and easily got at , it is just a case of ;
{ 1 } Removing the new wire ;
{ 2 } Reconnecting the original white power wire to the fusebox ;
{ 3 } Disconnecting the new wire from the distributor at the negative { -} side of the coil ;
{ 4 } Replacing the standard 12v coil with a ballast coil ;
{ 5 } Removing the tape from the original power wires from the harness
{ 6 } Reconnecting from the original power wires from the harness to the Positive { + } side of the ballast coil ;
{ 7 } Reconnecting the original wire from the distributor at the negative { -} side of the coil .
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