And just so you won't believe it Ford once said to do it with the engine running! That was in an official service bulletin to its dealers, I did not believe it until I was shown it. Good way to ruin a set of feeler gauges but Ford parts departments of the day kept strips of the 2 thickness gauges involved, I tried a couple and to be honest it made no difference, having adjuster bolts without locknuts and screws helps but the whole process was just weird. Made a none sense of the rule of 9, we always joked (at BL) that Ford came up with the system as most Ford mechanics lacked a full set of fingers so no way could they count up to 9.
Strange but True file!
