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12-25-2024, 09:08 PM | #1 |
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Join Date: Mar 2024
Location: Bend, Oregon
Posts: 12
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Distributor/Spark Plug Setup
Went to replace the plugs/wires on my '72 with a 350. Curious if this looks correct (picture taken before removing the old wires). Seems like from my I can find online wire 1 is in spot 8? If so what effect does this have on the engine/performance? Obviously going to correct it but just curious.
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12-25-2024, 09:46 PM | #2 |
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Join Date: Jan 2005
Location: CA
Posts: 5,994
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Re: Distributor/Spark Plug Setup
It looks like the distributor was just installed with the rotor clocked a little more clockwise than normal. It is irrelevant from a functionality standpoint. It would be a hassle to adjust it at this point if all you're wanting to do is replace your plug wires. You would have to set the crank at TDC, pull the distributor out of the block, rotate the oil pump shaft a little with a long screwdriver and then go through the trial and error process of reinstalling the distributor repeatedly until you get the rotor pointing in the direction you want #1 to be. You'd need to readjust the timing with a timing light afterward. Probably not worth the effort.
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12-25-2024, 10:17 PM | #3 |
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Join Date: Mar 2024
Location: Bend, Oregon
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Re: Distributor/Spark Plug Setup
Appreciate the response. Basically, just reinstall the new wires to match what they looked like before then?
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12-25-2024, 10:21 PM | #4 |
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Location: CA
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Re: Distributor/Spark Plug Setup
Yes, assuming the current wires are installed in the correct 1-8-4-3-6-5-7-2 order.
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12-25-2024, 10:23 PM | #5 |
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Join Date: Mar 2002
Location: Pittsburg Ca
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Re: Distributor/Spark Plug Setup
Best way is One at a time so you don’t get mixed up.
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1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565 |
12-25-2024, 10:27 PM | #6 |
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Join Date: Jun 2022
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Re: Distributor/Spark Plug Setup
There is a conventional way that most folks clock their distributor, but no reason it has to be done that way.
I found this out the first time I swapped plug wires
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1970 C10 Custom longbed 350/350 Code:
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12-26-2024, 09:06 AM | #7 |
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Location: Elkland, PA
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Re: Distributor/Spark Plug Setup
To prevent cross firing, try not to have the wires touch each other.
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1970 K/5 Blazer CST 4WD, Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion.. 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... 2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels |
12-26-2024, 11:47 AM | #8 |
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Location: Northern Arkansas
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Re: Distributor/Spark Plug Setup
I think that's an old wives tale going back to old fashioned plug wires. I can't see any way for the newer thick silicone jacketed wires to cross fire each other. There's a much higher chance of carbon tracking inside the cap causing a misfire than wires touching or laying on each other.
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12-26-2024, 02:26 PM | #9 |
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Location: So Cal
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Re: Distributor/Spark Plug Setup
Rules of physics may not agree. Current in one wire will generate a magnetic field and cause current to flow in a parallel wire.
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'67 GMC 2500, 292, 4spd, AC |
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