29-08-15, 10:32 AM
(29-08-15, 08:19 AM)shaggy link Wrote: As it's a bank holiday weekend most places are closed but pop into your local machine mart & pick up a spark plug thread chaser (little double ended tool) clean the thread with this nice & slowly, gently working it back & forth with plenty of lubricant then if you can blow the area clean with air when you install the new plug put a tiny bit of copper grease on the thread but not near the washer as it doesn't compress!
NO copper grease, it is not needed at all and messes with torque settings, if a wrench is used.
http://www.ngksparkplugs.com/pdf/dyk_5points.pdf
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