Unusual spark plug question

kdog_x

Founding Member
Nov 12, 2001
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I actually have two questions, the first is, I just replaced my spark plugs less than a week ago, I ended up switching the offroad pipe back on for a little while and I needed to loosen up my header bolts to do it, so I pulled a couple of spark plugs so I could get at the bolts. When I got them out I noticed that there was oil on the threads of them. None on the plug itself, just on the threads, is this normal? Also, the back plug on the drivers side goes in about 2 full turns less than the other plugs and then it's tight, is this normal or should I go buy a tap and tap out the hole?
 
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Got one more question, off topic from this thread. Is there any way to check if the charcoal canister thing is working or not, I've heard this is supposed to kick unburned gas back in at off-idle modes, and if it's messed up it could make you run rich. Anyone?