well i pulled out my sparkplugs... and when i check inside to see the pistons my 1,2,4 pistons are dry and my number 3 piston was alittle bit wet.. what is the cause..??? and my number 3 sparkplug thread is alittle bitt wet with oil??? im thinking its my valve seals which i change 11 months ago..help... thanks..

 

Are you talking about the threads, or the electrode?

If the threads are oily, you need new valve cover seals.

If the electrode is oily, you have more problems.

 

yeah its the thread..
im gonna score some valve cover gasket together with the rings...