W 250 Pickup L6-359 5.9L DSL (1989)
CAUTION: Make sure that the piston touches the valve with approximately the same amount of force as in the previous step.
Rotate the crankshaft In the opposite direction until the piston touches the valve.
Mark the vibration damper again.
Measure the distance and mark the pulley at one-half the distance between the two marks. This mark is the TDC mark.
Completely loosen the exhaust valve adjusting screw.
Rotate the crankshaft approximately 180° in the direction of engine rotation until the pointer is aligned with the TDC mark. Look through the back
side of the gear housing for the timing pin hole in the camshaft gear.
Reset valves on No.1 cylinder and install cover.
