blake Posted February 6, 2006 Share Posted February 6, 2006 I have a 1965 mack dump truck with a thermodyne 673 engine (I can't find the serial number). There is a plate on the rocker cover that says to set the timing at 26 degrees, but there is no timing mark on the damper. Does anyone know where the timing mark is on this engine. Someone suggested it is on the flywheel, but I can't see how to get to it to see. thanks Blake Quote Link to comment https://www.bigmacktrucks.com/topic/797-timing-mark-on-673/ Share on other sites More sharing options...
theakerstwo Posted February 6, 2006 Share Posted February 6, 2006 I have a 1965 mack dump truck with a thermodyne 673 engine (I can't find the serial number). There is a plate on the rocker cover that says to set the timing at 26 degrees, but there is no timing mark on the damper. Does anyone know where the timing mark is on this engine. Someone suggested it is on the flywheel, but I can't see how to get to it to see. thanks BlakeOn a conv. it will be at the bottom of the flywheel houing on the flywheel and on a cab over it may be on top of the flywheel housing andif it is a latter engine it will be on front damper. glenn Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/797-timing-mark-on-673/#findComment-3901 Share on other sites More sharing options...
fullfuel01 Posted February 6, 2006 Share Posted February 6, 2006 degree are on the damper, some of them have fix 'marker' that indicate the degree and some of them have bolted marker... Quote Link to comment https://www.bigmacktrucks.com/topic/797-timing-mark-on-673/#findComment-3916 Share on other sites More sharing options...
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