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Spark Plug Wire Routing

Old 10-14-2016, 05:35 PM
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Default Spark Plug Wire Routing

So many threads, and no answer: Which wire goes to which cylinder? I.E., there are 2 wires with right-angles (B & C) that go where?.
Attached Thumbnails Spark Plug Wire Routing-plugwires.jpg  
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Old 10-14-2016, 08:56 PM
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They are designed like that for convenience. Whatever works easiest for you is OK, they aren't "tuned" to a specific location.

All of those plug wires can be used in any location, except for the length (obviously).

I would probably put them at # 2 and #5.
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Old 10-14-2016, 09:16 PM
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The two wires with the 90degree boots are for cylinders 1 and 6.
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Old 10-14-2016, 09:18 PM
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Most wire manufacturers don't make wire sets for specific vehicles. They make different configurations of wires and computers tell them which ones to put in the boxes. Unless you have a vehicle that requires wires with large insulators with seals or something of the sort, you get parts that are universal. We used to run into this all the time with Chevy V8s. Some have high manifolds that run the wires underneath and some have low manifolds that run straight boots to go over the top. Unless you make your own set, you'll never get a set that fits right.

In your case, the 2 with angled boots are designed to go behind an A/C compressor or something.

Last edited by dave1123; 10-14-2016 at 09:21 PM.
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Old 10-15-2016, 09:35 AM
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Was hoping to make a chart:
Cyl = Wire
1 = B
2 = ?
3 = ?
4 = ?
5 = ?
6 = C
Or whatever
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Old 10-15-2016, 11:11 AM
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I would say;

The shortest 2 go to #3 and #4
The next straight pair to #2 and #5
The angled pair to #1 and #6
The coil wire is obvious
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Old 10-15-2016, 11:28 AM
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Thanx. That'll do it...just put them in like that. It is so much easier to rip them all out at once then that one-at-a-time thing.
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Old 10-15-2016, 09:02 PM
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WAIT!!....That one-at-a-time thing is so you keep distributor tower placement correct for the firing order! I hope you at least marked #1 and know the rotation direction.
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Old 10-16-2016, 10:22 AM
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First thing I do with a new dist. cap is take out a Sharpie and write the firing order number next to each post. Also keep a cyl (pretty simple = 1-to-6 from the front-to-back) & firing order pic in the car file. And the #1 post is always pre-stamped on the cap.
Getting clyl #1 wire plugged on using the straight wire was murder (used a spark plug tool) til I read this = took it off and easily attached the right-angle wire (to #1 & #6).
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Old 10-16-2016, 01:14 PM
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You know, I've worked with Chevy V8s for so long I have all that stuff committed to memory, as well as the cute tricks like installing the distributor one tooth off so you can turn it far enough to get a wrench on the hold-down bolt easier. Learning 4.0 jeeps was like starting all over again. Also the normal firing order of V8s are all the same, 18436572, UNLESS someone like FORD numbers the cylinders differently!!! ARGH!

Also, with electronic systems, changing distributor settings can get you into trouble.

Here's another little known fact. Air-cooled VWs push air thru the oil cooler before it cools cylinder#1. The Germans decided because that air was already heated, they retarded the distributor cam for #1 by 4* so it would run cooler! Picky, picky.
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Old 10-16-2016, 07:57 PM
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This couldn't possibly be a troll.
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Old 10-17-2016, 03:38 AM
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Who?
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