What size nuts hold down the rotor on a 454

[DiGiacomo]

hey tom......you might remember me saying that i had plug wires melted to the plugs when i changed mine, so if you are going to do the plugs first, i would also have a set of wires handy just in case.......it might save another trip to the parts house.....

 

[seilerbird]

I bought the cap, rotor, plugs and wires all today. None of them are melted, I have already done a visual.

 

[seilerbird]

Problem finally solved!

It was the spark plug wires.

I was going to replace just the plugs this morning but the old sparkplug wires wouldn't come off in one piece so I decided to do both plugs and wires. The only problem I had was I couldn't get most of the sparkplugs out of their hole. I only replaced 3 of the plugs, so I am using 3 new ones and 5 old ones. The 3 old plugs I removed were gapped properly and the residue on the tips was a beautiful golden brown, just like they should be. I decided to stop trying to remove the old plugs for fear of breaking one trying to remove it. That would really open up a barrel of worms I don't want to get into.

I want to thank all the people on this forum who offered me suggestions.

 

[bigskymt]

  Good for you Tom. The wires usually don't melt or burn, just break down and the high resistance causes all kind of problems.
  Don't be afraid to break a sparkplug, worse case you'll break off the porcelin but the rest of the plug can still be removed.
  You're probably sick of 454s for awhile now.

 

[seilerbird]

I am afraid of breaking off a spark plug because of how hard some of them are to get to. I will just pay someone to replace them later on.

 

[34footer]

The sparkplugs are good for 50,000 miles so you still have plenty of miles left. On my Chevy Tahoe I have 126.00 miles on my original plugs. Pulled them at 100,000 miles and they were still good ant the gap was right on.
J