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04-08-2021, 10:34 AM | #1 |
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spark plug wires
changing my spark plug wires on a 39 flathead motor the wires going to the 2 caps on the distributor are they marked to show where each wire goes or what would be the best way to exchange the wires i don't want to mix them up i purchased the original colored coded old style wires . THANK YOU JIM S.
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04-08-2021, 11:00 AM | #2 |
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Location: West Newton PA
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Re: spark plug wires
match them up and replace one at a time
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04-08-2021, 11:21 AM | #3 | |
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Re: spark plug wires
Quote:
I'd suggest you mark the internal distributor terminal(s) before removing the wires. Personally, I'd engrave the respective number next to the terminal 'socket". Also, I'd strongly suggest you check continuity of each wire before reinstalling the conduit, etc. That's a simple way to be certain you placed the wires in the correct "socket" and all of them remained seated during assembly.
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04-08-2021, 01:23 PM | #4 |
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Re: spark plug wires
I agree with Kube, do them all at once. The 12116 terminal plates for the helmet distributor, that I have seen, have two sets of cylinder numbers by each of the wire cavities, so you just have to know how the cylinders are numbered and which side you are working on to get them in the correct location.
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04-08-2021, 02:45 PM | #5 |
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Re: spark plug wires
As the experts above have posted, I find doing them all at once is easiest. I also find that IF you work yourself backwards from the plate, then orient the wires through the cap opening with the two shortest to the outside of the tube opening (if you will) and the two longest to the inside of the tube opening (if you will), then slide the rubber boot on, then feed them into the tube it goes fairly smooth that way (for me anyway).
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04-08-2021, 06:32 PM | #6 |
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Re: spark plug wires
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04-10-2021, 08:16 AM | #7 |
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Location: Burton, Texas
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Re: spark plug wires
If you decide to replace one wire at a time, I suggest spraying silicon lubricant into both ends of the wire looms. I just had to replace two wires in my '34 roadster, and this made it easy for me.
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04-10-2021, 08:42 AM | #8 |
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Re: spark plug wires
Okay, please explain why you would only replace two wires? Did you cut them by mistake or otherwise damage them?
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04-10-2021, 09:07 AM | #9 |
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Re: spark plug wires
Original inner caps are marked with the cylinder numbers 1-4 on the R, 5-8 on the L
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04-10-2021, 10:20 AM | #10 |
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Location: Burton, Texas
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Re: spark plug wires
Kube.
In 1996 I replaced the original style sparkplug wires with the “modern” type with molded ends. This year two of these wires failed, the metal press-on connections burned out. As a temporary fix I reinstalled two of the old wires. I plan to replace all the wires with new original style ones when I can find a set of knurled nuts that fit Champion D21 sparkplugs. I tried those from my Model A’s and T’s but neither have the correct threads. Note that these cars also have Champion spark plugs. I hope that someone can lead me to finding these. Thanks, Robert Last edited by Robert/Texas; 04-10-2021 at 12:10 PM. Reason: changed D11 to D21 |
04-10-2021, 11:55 AM | #11 | |
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Re: spark plug wires
Quote:
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04-10-2021, 12:13 PM | #12 |
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Re: spark plug wires
Thanks Kube, Ill call him next week. He's not open today.
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04-12-2021, 03:54 PM | #13 |
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Location: Burton, Texas
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Re: spark plug wires
Thanks again Kube. He's sending me both types of nuts today. I also ordered new wires from him.
Robert |
04-12-2021, 03:59 PM | #14 |
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Re: spark plug wires
Wonderful~!
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04-16-2021, 01:52 AM | #15 |
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Re: spark plug wires
I found the dive helmet setup on my flatty one of the most complicated plug wire swaps ever but as someone posted silicone lube is your friend, did all of mine at the same time.
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