Cylinder Head Cover; Intake Manifold / Thermostat; Oil Pump / Oil Filter - BRP Johnson 4HP Service Manual

Cylinder Head Cover

Install the cylinder head cover and the gasket, then tighten
the four cylinder head cover bolts diagonally to the specified
torque.

Cylinder head cover bolt: 8 N·m (0.8 kg-m; 6.0 lb-ft)
NOTE:
Make sure that the cylinder head cover gasket is installed in
the direction as shown in the figure.

Intake Manifold / Thermostat

1. Install the thermostat to the cylinder block.
2. Install the intake manifold and the gasket, then tighten
the four intake manifold bolts diagonally to the specified
torque.

Intake manifold bolt: 10 N·m (1.0 kg-m; 7.0 lb-ft)

Oil Pump / Oil Filter

1. Apply engine oil to the inner / outer oil pump.
2. Install the inner / outer oil pump to the crankcase as
shown in the figure.
3. Install the plate and the oil filter / holder to the crankcase.
POWERHEAD
REASSEMBLY
Upper Side
6-39