Need help - spark plug question ???

[jt512]

I'm doing a tune up on my 86 K30 - 454 mostly all stock/ original as far as I know. I picked up some plugs, wires, cap, and rotor today and upon pulling the first plug I see this strange spacer type thing the plug screws into ? They are AC plugs in it, the new plugs are a bit longer in the body but the threaded part is the same.

Do I reinstall the new plugs into the spacers ?? What is the point of them anyway ?

Thanks

 

[xsmokey11499x]

I'm doing a tune up on my 86 K30 - 454 mostly all stock/ original as far as I know. I picked up some plugs, wires, cap, and rotor today and upon pulling the first plug I see this strange spacer type thing the plug screws into ? They are AC plugs in it, the new plugs are a bit longer in the body but the threaded part is the same.

Do I reinstall the new plugs into the spacers ?? What is the point of them anyway ?

Thanks

the "spacers" you are talking about.. do they look like this ? http://forum.ge/uploads/post-74-1306682792.jpg

if so, those are "sparkplug nonfoulers"
quote from google search **It is a device that screws onto the sparkplug be for you screw it into the sparkplug hole.
It has a small hole in it which allows the gas Vapor to enter this hole but keeps oil out. When the plug fires it ignites the gas vapor and the engine works. But it keeps oil from splashing on the plug and fouling it.**

Personally, I've never used them for sparkplugs, only on 02 sensors :P

 

[USSkoval]

They are on all the cylinders? I ran two of the non-foulers on an old 250 inline six and they actually worked. It kept me from having to clean two of the plugs every week.

 

[jt512]

That's what they were , non foulers, I had never seen them before.

They were in all the cylinders, I am going to give it a shot with out them and see what happens .

 

[Fordum]

We had a truck at the plant that had about 300K on the engine and we needed it to make it through the rest of the summer.
We put a set of them on. Worked fine for a little while. Then when I was driving it, I heard a loud bang and then a whooshing noise.

Pulled over and the ceramic had blown out of the base of one of the spark plugs. Never saw that before.
Called the mechanic, and he brought over a new plug.
Nothing was damaged other than the plug, and both pieces of it were intact.

Bout a week later, another one blew out, same way.

I don't know if it would have happened again or not. The mechanic pulled all the nonfoulers off and put in a set of hotter plugs.

That got us by until we could redo the engine.

 

[diesel4me]

Those were popular back in the 80's when I worked at parts stores....I recall the packaging saying "not for use in more than half of the engine's cylinders",and they also warned not to use hotter than normal plugs with them,as the non-foulers themselves raised the heat range several degrees by creating a longer path for the heat to transfer back into the head.................one engine I saw someone put all 8 of them on an old 283,barely ran and was so gutless it barely could pull itself around,after we took most of them out,it gained a lot of its power back....a few of the Chevy's I bought had 2 of them in the rear most cylinders--I removed them after cleaning the oil drain return holes in the heads--they were plugged up,and let oil pool around the valve stems on those cylinders...