Quote:
Originally Posted by JimSmith
I may be missing some background, but are all the plugs burned out? I am not a believer in removing functioning plugs. I have replaced all of mine in several episodes, but never more than 3 at a time.
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IMO, there are reasons.
1. Assuming that you haven't replaced them for a long while and 1 burns out, it is likely that the others are not far behind. Save yourself the gasket $10-15 and the time, routine or not.
2. If you take it out after a long while, you can re-anti-seize the plugs and clean the threads.