Received the new Tempest UREM38E plugs and checked the gaps, applied a touch of anti-seize and removed old plugs. Since setting the gaps before the last engine run the 'color' of the electrodes looked better (not sooty) and had a surprising accumulation. Basically four of them are in terrible condition.
Installed the new plugs but with 1" of rain expected overnight there is no chance to run the engine (maybe late tomorrow).
