Changed the plugs today after 40,000 miles. Got new coils and wires too.

They were dirty, as expected, but I got a real surprise looking down the bores for the trailing plugs. The tan crap that coats the end of the plug had formed a bridge over the end of the hole with only a small, 1/8th inch or so, opening in the center. I cannot confirm if the the thing was completely capped up until I pulled the plug out. The material was hard. You could see through the hole, and I was able to see the end of the apex seal through the hole.

I put a little bit of lucas cylinder lubricant in (no sea foam) and put it all back together. Car seems really happy, but I will know more after a drive to work tomorrow.

Anyone ever seen or heard of this before? I thought about cranking the engine with the trailing plugs out, but was not sure what trying to blast that stuff out of there would do to the threads, or what the fire would do to the engine compartment.

Thoughts?

 

Does the bridging and the hole resemble the picture in post #3 of this thread?

https://www.rx8club.com/aftermarket-...cation-242042/

Ken

 

@ Ken,

Damn, Thanks, Glad I did not try to drill it out..... Yeah, that is it.

Someone in Northern Virginia please buy him a beer for me.

 

That one of olddragger's technical concept threads actually had a useful outcome is more than enough reward for all of us.

Ken

 

:facepalm:

 

jeez.

 

Does this mean I have to give him beer too?

 

no--it doesnt. I am kind of a joke around here. you know a mad scientist kinda thing.

 

LOL....Denny..you aren't a joke...

Just tend to type first and think later.......or think out loud

One of these times the out of the box ideas will actually work


PS: This has got to be the biggest LOL thread I have seen for a long time...damn near spit up my dinner

 

we love you just the same, kind of like the crazy uncle in the family

 

ahhhhhh--thanks guys. I do keep trying. One day.......

Now I am using peanut butter to shine the cars black plastic....

 

More likely to see Denny than Ken. Beer for Denny, more for Ken later.

 

Denny deserves one more than I do. The answer was in his thread. His threads are always worth reading.

Ken