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Spark plug wire separators

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AUSMHLY

AUSMHLY

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Per Gary Anderson and Roger Moment's Authentic Restoration Guide, page 155:

"The spark plug wires to the first and second cylinders, and those to the fifth and sixth cylinders, were gathered together between the distributor and the engine with black rubber O-rings approximately 1/2 inch in outside diameter."

See attached photo, where I have done this.

I read this about MSD Wire Separators:
Not only do separators have to keep spark plug wires away from engine heat sources, they also have to keep the plug wires far enough apart to prevent inductive crossfire and actual spark loss. MSD wire separators will clean up your vehicle.

See photo include here, with red wires.

Will using the O-rings really cause inductive crossfire?
What do you think, engineer type guys.

Looking forward to hearing your thoughts.
Cheers,
Roger
 
There will be "inductive crossfire" only if two wires run parallel & close to each other for some appreciable distance.

Folks instinctively like the appearance of nice neat parallel wires.

The MSD spacers simply provide some distance between the parallel wires.

On your engine, it's not hard to arrange the wires to not be parallel for any great distance. The O rings can actually help to prevent the wires from running parallel.

Also, wires with spiral wound cores will not have as much inductive coupling between wires. The external "field" is much less, which is why there is less radio noise radiated from this type of wire.
D
 
<div class="ubbcode-block"><div class="ubbcode-header">Quote:] [/QUOTE]Will using the O-rings really cause inductive crossfire?
What do you think, engineer type guys. <div class="ubbcode-block"><div class="ubbcode-header">Quote:] [/QUOTE]


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I hope not, I have my wires currently taped together for neatness but looking for a nice separation system

Bob
 
I think this is a case where function takes precedence over form & is not a good place for nice straight wire "bundles".
D
 
Dennis

I don't do original, well not that much any way, open to all ideas.

Looks very neat to me and as I have plenty of them I will give it a go. Don't know why I did not think of that.

Thanks

Bob
 
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As Dave has said, avoid running ignition wires parallel to each other. This can cause a voltage to be induced into the adjacent wires.
Straight metal conductor/core ( stranded or solid ) are the most likely to do this if running parallel to each other .
Straight carbon/core wires are less likely to do this.
Spiral wound metal core ( or spiral wound any kind of conductor ) wires like Magnacore cannot induce a voltage into the adjacent wires because of the conductor being wound in the shape of a long spring. This shape causes the magnetic forces to cancel each other out, thus there is no voltage induced in any adjacent, parallel wires.
This canceling effect of the magnetic fields found in spiral wound wires like Magnecore, not only prevents the wires from inducing voltages into each other, but this also eliminates almost all electrical noise in your radio/speakers.
.. The point is if you really want to run ignition wires parallel to each other ( it does look neat that way ), you better use magnacore or similarly constructed wires.
... That is my opinion, others may vary, but the way that electric conductors induce voltages in nearby metal objects does not vary.
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