Have a question regarding the number of times you can check/remove your spark plugs before the washer is usless. I like to keep a close eye on what's happening inside the cylinders and look at plugs quite a bit - the only problem i find is that the NGK plug washer gets crushed down and i begin to lose the seal and even get some oil blowing out due to a bad seal. It almost seems like it's ruined on the second installation - even when i'm careful about how far i've tightened the plug in. Is there a way to put on new washers or a better way to tighten so as not to crush the washer - or do you just change 'em every second or third look? Just wondering what everyone else does out there?
