Crank engine with starter, or turn over in normal direction of rotation until mark on torsional damper lines up with "TDC" mark on timing tab, and engine is in No. 1 firing position. This may be determined by placing fingers on No. 1 valve as mark on damper comes near"TDC" mark on timing mark. If valves move as mark comes up to timing tab, engine is in No. 6 firing position on V-8 and No. 4 firing position on V-6 and should be turned over once more to reach the No. 1 position.


Engine in No. 1 Firing Position (Figure 1)

With engine in No. 1 firing position, as determined above, the following valves may be adjusted (See Figure 1).

Back out adjusting nut until lash is felt at push rod, then turn in adjusting nut until all lash is removed. This can be determined by moving push rod up and down while turning adjusting nut until all play is removed.

Hydraulic lifters now can be adjusted by tightening adjustment nut 3/4 of an additional turn. No other adjustment is required.

Crank engine one revolution until "TDC" pointer mark and torsional damper mark are again in alignment. This is No. 6 firing position on V-8 and No. 4 firing position on V-6. With engine in this position, the following valves may be adjusted (See Figure 2).