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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?
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.
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.