Volvo Penta D7A T Operator's Manual page 43

Crankshaft position 1:
• Turn crankshaft until both valves in cylinder 1
overlap (exhaust valve about to close, inlet valve
about to open).
• Adjust clearance of valves marked in black on
schematic.
• Mark respective rocker arm with chalk to show
that adjustment has been carried out.
Crankshaft position 2:
• Turn crankshaft one full revolution (360°).
• Adjust clearance of valve marked in black on
schematic.
Maintenance: Engine
43