Ford CMP Coil Bracket

[Keith Webb]

Originally Posted by Grant Bowker

Be cautious when relying on the illustrations in parts (or maintenance) manuals. I base this on the Chev manuals where I have seen some of the identical illistrations used in manuals published for civilian pattern vehicles before there were any CMPs. In other words, they did an earlier version of copy and paste or diagram recycling. Some are trustworthy, some are questionable and some are outright misleading, at least for Chevs and I wouldn't be surprised if the same happened at Ford given the pressures to get information out quickly, using the least manpower possible.

Good point Grant, but in the case of the driver handbook the illustrations came from it is entirely accurate for a cab 13 Ford. The handbook it came from is the
F15-HB1. I have some NOS copies of this book available for $A50 each plus postage if anyone is interested. Many of the illustrations apply to most of the Ford cab 13 CMP range.
The other bracket with the original type coil is a pressed steel unit which is mounted using two bolts on the valley cover.
The ignition resistor is mounted next to the voltage regulator.

[Lynn Eades]

As nobody else has answered, Yes you need the external resistor with the Ford coil. The Ford coil is in fact a 4.5 volt coil in a 6 volt system, hence the need for the resistor. It might last a while on six volt, but will probably fail.
Tony Smith posted here some time back saying something to the effect that; The Ford coil is unreliable, even NOS ones are the same due to deterioration internally. You are better off with a modern replacement. (this is my recall)

[Keith Webb]

Originally Posted by Lynn Eades

As nobody else has answered, Yes you need the external resistor with the Ford coil. The Ford coil is in fact a 4.5 volt coil in a 6 volt system, hence the need for the resistor. It might last a while on six volt, but will probably fail.
Tony Smith posted here some time back saying something to the effect that; The Ford coil is unreliable, even NOS ones are the same due to deterioration internally. You are better off with a modern replacement. (this is my recall)

You are absolutely correct, the original Ford coils in my experience are unreliable due to age deterioration. I must admit though, the brown bakelite design is very neat.