Originally posted by Nate Payeur:
I think somethings seriously wrong with my Tour.

I've just got Champion RS14YC6 plugs in there right now. What could be causing this? Two blown plugs in 4 days? Compression too high?




Are those double platinum plugs? If not, I would recommend putting double plats in there, ideally Motocraft ones. BTW, I wouldn't recommend loctite- I've found the opposite to be true- you need to ensure that the plugs DONT stick to the heads.

FWIW, vibration could loosen them, if they are not torqued properly. When you put them in, did you use a torque wrench? If not, an extra 'nip', usually, a quarter or eighth turn after the resistance is felt is all you would need.

Also, if it was a stored car, (like, say a mower over winter) did you loosen the plugs and put a drop or two of oil on the plug and put the plugs back in loose but then forget? Or maybe someone did this for you, but without your knowledge?