boredguy77

In preparation for my turbo. I decided to freshen up the engine a bit. Yesterday I replaced the spark plugs with NGK 6097's. I was very careful in picking a gap because I didn`t want a crappy idle, or knocking at high rpms. I ended up going with just under 1 mm gap. What do you guys think about this gap when I get my turbo on? When I was in there I cleaned my throttle body a little bit and other areas, but when I was cleaning around the #5 and #6 cylinders I found lots of marble to bb size brown pellets. (I know that is a bad description but it was the best I can do). I will try and take some pics of them later, but does anyone have a clue what they are, and what their presence might mean? They were crunchy between my fingers, but oily also. anyway I also decided to compression check my engine while I was at it. so here are the numbers 170,175,190,195,210,280 At first I was incredibly confused at what had happened but then I realized I had forgot to unplug the injectors I didn`t get another chance to compression check but am going to try again later. Anyways while I was compression checking each cylinder progressivly from 2-6 each had more and more oil in it as I pulled out the spark plugs, was this due to the compression checks and cranking the engine or is it a bad sign? #6 honestly was holding my wrench in with suction from oil! but anyway When I started the engine A huge cloud formed (all of the fuel in the cylinders then it smoothened out into a noticebly better idle (even though I didn`t think the idle before was bad, this was alot better). I let it warm up, then I took it out to see if there was a change, and the power is the same except in the 4k-5k where it was stronger and smoother. I will try and take some pics of the old plugs so you guys can help diagnose from those how my engine looks. all in all I would say that it is alot of work to just change spark plugs. And any answers yall might have to my questions would be appreciated
Thanks,
Alex T.

boredguy77

here are the plugs, kinda blurry so probably not worth much, and some pics of the deposits that I can`t identify.

boredguy77

All of these bits were found under the sparkplug cover except the curving rubber piece, That was just some junk on the floor.

boredguy77

and another

boredguy77

last one, If you guys know what these are please help me out.

stock300

My guess is that one or both of your valve covers are leaking. This could cause the oil to build up in the rear spark plug tubes. If you don't remove the oil before pulling the plugs, the oil will leak into the cylinders resullting in the smoking that you noticed. The residue could be from your cover #3 that runs between the 2 valve covers. Anyway, that was my experience with my old Supra. Changing the valve covers and the 3rd cover fixed the problem.

stock300

I was referring to the valve cover "gaskets" and not the covers themselves. Long day.