65 396

I have a slight issue on my big block with the spark plug wires being difficult to remove when changing plugs. I have two options I'm comtemplating now:

1. apply one drop of engine oil to the tip of the rubber plug boots

2. apply a very small amount of neverseize to the tip of the rubber plug
boots


What do you all think?

Nowhere Man

Why you changing plugs so often?

MikeM

That was my initial thought as well!



Use a dab of di-electric grease on each plug.

Powershift

With non-leaded gas and the correct heat range spark plug, you shouldn't have to worry about plug changes for about 5 years or 50,000 miles.

Larry

JohnZ

I use MSD "Spark-Gard" - put a little on a Q-tip and apply it to the inside of the boot so the boot doesn't stick to the insulator on the plug.

65 396

The main reason is that I don't want to damage the plug wires, which cost me $150.

Westlotorn

R66, the Iridium and the Platinum plugs take more power to spark. Platinum and Double Platinum plugs were installed in engines with High Energy ignitions which offered more voltage and they worked well.
Iridium plugs are the very best to do the job but most were designed for much newer engines so the proper size is most likely not available for a Old GM engine. Even the Iridium plugs need more power than a old school copper plug to spark but only about half as much as a double platinum. The Iridium also will out last a Platinum plug by about double. Great plugs for sure but last time I checked nobody was making them for the OLD SCHOOL stock 327-427 engines.
Champion guarantees the Iridium plugs for 7 Years unlimited miles. Probably not much help in our old cars but for a daily driver this is good stuff.
For the old cars using old ignition systems the plain old Copper Plug is still the best and cheapest option. Copper fires with the least amount of ignition voltage.
If your car runs a high energy, MSD or other system switch up to a Iridium or Platinum plug if available. High energy systems cause rapid wear on old copper plugs.
You would still get at least 5,000 miles on copper plugs with an MSD but Platinum could offer 100,000 and Iridium at least 250,000 miles.

Frankie the Fink

SWCDuke

Some boot elastomers may not be formulated to resist degradation from petroleum products, so don't use anything that's petroleum based. The best thing to use is a very thin film of silicone grease. I've been using it for decades and have never had a problem removing or damaging a boot.

I also use silicone grease on coolant hoses... again, a VERY thin film. It goes a long way in preventing hoses from seizing to nipples, and the heater core nipples are very delicate. It's easy to crack the solder joint to the core if they are seized while attempting to remove them. If I'm going to replace the heater hoses I always slit them at the heater core junction with a utility knife and then peel off the hose.

Duke

ricks327

I wonder how many times the OP changed plugs since Sept. 2015?

GTOguy

I agree. 4 year old post.

Westlotorn

My mistake, the reply I had belonged in another thread and I have no idea how it ended up here. Obviously I hit the wrong key but now I know more about non stick plug boots.