It’s been almost four years since acquiring the ‘02 from a trusted friend and the car has been trouble free other than a balky temp gauge (bad ground). The car drove well without any glaring issues, but I can’t say that I had any relative bench mark to compare the seat of the pants feel for the upgraded engine (Weber’s, cams, and headers). It was past due to explore the top end for the first time, so with a long weekend at hand, I checked the valves and the plugs.
The valve train looked very clean. The valve lash all checked out at 0.008 for the 292 cams… the plugs all checked out as well with NGK BP6ES’ at 0.040. But the #2 plug was hard to pull as if it was cross threaded. One photo shows a small bit of substance between the crush washer and the shoulder of the plug… another shows something down at the bottom of the well… and the third shows what was scraped out (a hard, brittle, reddish material). Upon replacing the plug, I went heavier than usual on the anti-seize and pulled the plug back out whenever there was resistance to check the thread-depth. It took several passes to eventually get the plug to screw in smoothly to the bottom, so I could make sure it was seating properly and then torqued.
The engine now seems more responsive on throttle than before (barely touch the pedal and there’s no hesitation on revs) and seems to have more power on the road. I checked the plug well after cool down and all looked normal and dry.
So, thoughts on what that stuff was in the plug well and why it might have found it’s way down there?