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Old 01-29-2020, 06:49 PM   #1
Ken/Alabama
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Default Plug Wire Tubes

Got these plug wire tubes with only two holes facing the heads and one on the inside facing the intake. All the others I have has three holes facing the head . What gives?��
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Old 01-29-2020, 07:40 PM   #2
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Default Re: Plug Wire Tubes

Schramm air compressor, perhaps? DD
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Old 01-29-2020, 07:59 PM   #3
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Default Re: Plug Wire Tubes

Maybe? DD


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Old 01-29-2020, 09:25 PM   #4
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Default Re: Plug Wire Tubes

seems like the '42 distributor has 2 wires that have to cross over to the opposite side of the engine.? i don't understand why.
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Old 01-30-2020, 08:44 AM   #5
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Default Re: Plug Wire Tubes

These conduits are used with the "crab" dist cap, '42-'44.
The The firing order of the crab cap dictates that two wires must cross.
Most hot rodders do this at the cap & dispose of the conduits.
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Old 01-30-2020, 09:30 AM   #6
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Default Re: Plug Wire Tubes

The TRUE '42 conduits had a small metal tube that fit from one side to the other for the two wires to cross. The photo in the original post is NOT 42.
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Old 01-30-2020, 10:05 AM   #7
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Default Re: Plug Wire Tubes

Quote:
Originally Posted by Kube View Post
The TRUE '42 conduits had a small metal tube that fit from one side to the other for the two wires to cross. The photo in the original post is NOT 42.
I've fussed with '42s a couple of times and have not seen a metal tube on the cross over wires, only a coated sleeve, like a small version of a head lite loom.

How about a part number for the metal tube ?
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Old 01-30-2020, 11:11 AM   #8
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I've fussed with '42s a couple of times and have not seen a metal tube on the cross over wires, only a coated sleeve, like a small version of a head lite loom.

How about a part number for the metal tube ?
I'll try to get a photo. They are scarce. No doubt got tossed when the wires were serviced.
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Old 01-30-2020, 01:08 PM   #9
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Default Re: Plug Wire Tubes

Under the hood 1942 Ford V8




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Old 01-30-2020, 02:55 PM   #10
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Default Re: Plug Wire Tubes

Pete, The 42 you've depicted does not have the correct plug wire tubes.
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Old 01-30-2020, 04:25 PM   #11
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Default Re: Plug Wire Tubes

Mike I do not doubt you either, but all the NOS 21a tubes I have do not have a metal cross over (like the Lincoln’s had) local to me there is a super low mileage 42 4 door and it has a tar covered covering over the cross over wires but no metal shield. Page 5-9 of the clubs book states they had a braided heat shield... I’m confused
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Old 01-30-2020, 04:32 PM   #12
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Default Re: Plug Wire Tubes

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local to me there is a super low mileage 42 4 door and it has a tar covered covering over the cross over wires but no metal shield.

Maybe you could take a picture under the hood of this "local" car?
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Old 01-30-2020, 04:37 PM   #13
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Default Re: Plug Wire Tubes

I can next time I am around it itís in Nashville a hour from me. I would not wish to use it as a sure fire example. I would like to figure out the confusion in my mind. Iím certain the tubes I have that are 21a are service parts


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Old 01-30-2020, 05:14 PM   #14
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Default Re: Plug Wire Tubes

Quote:
Originally Posted by petehoovie View Post
Maybe you could take a picture under the hood of this "local" car?
I am attempting to get near this car now.
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Old 01-30-2020, 05:20 PM   #15
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Default Re: Plug Wire Tubes

Mike,
The metal tube thing makes since as the Lincolnís have it, do you have a photo of them with the tube? Somewhere at home I have some photos of the local 42 Iíll see if I can find them as Iím not wanting to drive an hour for a photo.


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Old 01-30-2020, 05:23 PM   #16
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Default Re: Plug Wire Tubes

Lincoln V12 with cross-over tube >








With the tube missing >


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Old 01-30-2020, 05:25 PM   #17
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Default Re: Plug Wire Tubes

I have a number of NOS parts from a bought out dealership that were replacement parts from when Ford no longer accepted returns I think in the mid 50s.
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Old 01-30-2020, 05:55 PM   #18
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Default Re: Plug Wire Tubes

I guess it's entirely possible that I am the confused one here, but whether there is an extra "crossover" hole on the opposite side or not, that still doesn't explain the need for the AWOL front hole for a plug wire to fire the front (#5) cylinder. DD


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Old 01-30-2020, 06:00 PM   #19
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Default Re: Plug Wire Tubes

As you can see I have my fair share of these exact tubes in question.



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Old 01-30-2020, 06:24 PM   #20
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Default Re: Plug Wire Tubes

I looked in my 1944 Canadian parts catalog. It lists two different conduit versions for the 21A type cap..

21A-12280-B ---RH 21A-12281 --- LH and 21A-12110 Ignition cable conduit (this is obviously a crossover conduit, but it does not say if it is metal like the Lincolns or braided like the Early Ford V-8 41-48 book states) These are listed for 1942-44

It also lists

C31A-12281 --LH and C31A- 12280-B -- RH these are listed for 1944 only and obviously likely military
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