final nut that keeps the pulleys in place. Figured with the red everything will be firm enough to remove the whole idler stud in the future even if just the 2 pulleys are in need of replacing. LOL - given I put about 2k miles on the car per year it will probably be my future grandkids dealing with the issue (and they won't need a special tool)!!! Believe I used blue on the VTC spring cover bolts too. Also applied anti-seize to the crank sprocket gear since they usually rust to the shaft over time.
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