56855 Mercruiser SHAFT ASSEMBLY, OIL PUMP

This engine uses high voltage to control the fuel injectors.Disconnect electronic fuel injector enable circuit connector to prevent personal injury.Do not come in contact with the fuel injector terminals while the engine is running.
Note: Valve lash is measured between the rocker arm and the valve bridge. All measurements and adjustments must be made with the engine stopped and the valves fully closed.Mechanical Electronic Injector Unit (MEIU) and Valve Lash Adjustment
Put the number 1 piston at Top Dead Center (TDC) on the compression stroke. Refer to the Testing and Adjusting, Finding Top Center Position No. 1 Piston.Note: To check that the number 1 piston is on TDC, both the inlet and exhaust valves on cylinder number 1 will move freely. If the valves do not move freely, cylinder number 1 is on TDC of the exhaust stroke. Install the timing pin in the flywheel.
Table 1
TDC No. 1 Compression Stroke Inlet Valves Exhaust Valves
Valve Lash C13
0.38 0.08 mm (0.015 0.003 inch) C13
0.76 0.08 mm (0.030 0.003 inch)
Cylinders 1–2–4 1–3–5
Adjust the valve lash using the specifications from Table 1.
Lightly tap the rocker arm with a soft mallet.Note: This tapping ensures that the roller lifter seats against the base circle of the camshaft.
Loosen the adjustment locknut for the appropriate valves.
Place the feeler gauge between the rocker arm and the valve bridge.
Turn the adjustment screw in a clockwise direction while sliding the feeler gauge back and forth between the rocker arm and valve bridge. Continue turning the adjustment screw in a clockwise direction until a slight drag is felt on the feeler gauge.
Tighten the