Anyone know correct spark plug gap for the Iridium TR7IX in the Duratec 237 engine?
In this thread Sean quotes 0.64mm / 0.025in for the same plug in his CSR260 setup, but I can't find any reference to gap for my 485 in the build or owner's manual.
FYI the current gap is 0.94mm / 0.037in, consistent across all 4 plugs (2 a bit sooty after 3K miles, but nothing extreme). Just wondering if I should adjust before refitting.
In this thread Sean quotes 0.64mm / 0.025in for the same plug in his CSR260 setup, but I can't find any reference to gap for my 485 in the build or owner's manual.
FYI the current gap is 0.94mm / 0.037in, consistent across all 4 plugs (2 a bit sooty after 3K miles, but nothing extreme). Just wondering if I should adjust before refitting.
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