Although this thread is pretty old, I thought I would chime in cause I just changed my plugs
today on my 84'.
I went to the auto parts store and bought a set of Bosch Platinum 2's, a fuel filter and a PCV and then went down the road to go get an oil change.
Since I had never changed the plugs
on this car before I was expecting some headaches. So I while getting my oil done, I asked them how much they would charge to put the plugs
I bought in for me. Crap! They wanted $75 plus tax and said it would take an hour and a half!!
There was no way that was going to happen if I could help it....
It was a decent day out so I went for it. The only tools I used were a 5/8' spark plug socket, a thumb ratchet, a 3/8" socket wrench and a couple of times I used a 3" extension. I had a piece of fuel line on hand in case I needed to use it to get some of the harder to reach plugs
started, but never used it. I also bought a small packet of that Anti-Seize to put on the new plugs
threads. I went real easy on that stuff. And I also bought a bottle of Permatex Dielectric Grease to stick in the boot of the spark plug wires before snapping them back onto the ends of the new spark plugs
, just to make sure there was a real solid connection happening there.
Surprisingly, it only took me about 30 minutes to do with no troubles at all!!
I had read where on some cars, guys were said they needed to take the passenger side wheel off or the wheel well liner, etc. etc. But I didn't need to do anything special. It was really as straight forward as could be.
So don't be afraid to get in there and do it.
My car has 50,000 miles on it and the plugs
were original. It made a HUGE difference in how the car runs! Smoothed it out like new. I went ahead and replaced the fuel filter and PCV as well. Again, turned out to be very easy to do.