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Changing Plug Wires - The Horror

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Old Apr 10, 2013 | 09:26 AM
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Default Changing Plug Wires - The Horror

Changed the plug wires for the first time on the 70 on the weekend. May choose to fight a grizzly bear rather than do that job again, ha. I paid a guy to install new motor mounts in the fall, and he decided to push the wires up into the very top corner of the lower V shields...I had to cut them out of there. Gongshow. Now they are running through the mounts like they are supposed to. Got so flustered cutting out the old wires I mixed up a couple and had to find TDC with the old finger pressure method...never had done that before...so hey, I guess it was an opportunity to learn something?
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Old Apr 10, 2013 | 10:45 AM
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Moral: Trace and mark location of 'old' plug wires on distributor before cutting them.

If you retain all the hardware, it is a PITA job.
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Old Apr 10, 2013 | 11:08 AM
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Hi, yes...will mark them next time and did eventually this time. I had started out doing one at a time but when I encountered the problem with the front wires all reason went out the window, which is just a product of inexperience. Mine has most of the hardware still, it's those lower shields and snaking through the motor mounts that makes it a finicky job.
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Old Apr 10, 2013 | 06:46 PM
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Its probably easier to do it the way the factory did it. With the engine out of the chassis.
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Old Apr 10, 2013 | 07:42 PM
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On a few hard wires I cut the old wire, taped it to the new wire with the boot pulled off and pulled it through....
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Old Apr 11, 2013 | 12:43 AM
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If the dizzy has not been removed the dizzy rotor is still pointing at #1 when the damper is at TDC. Just plug on the #1 wire and go around the following the firing order

The next best option is if the dizzy has been removed is to pull the valve cover off and watch the #1 cylinder valve events. When you are rotating the crank and the intake closes look down at the damper and you will see that the damper is approaching TDC

I don't think I ever pulled a plug and felt for the compression stroke and I never bother marking the wires.
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