REMOVAL AND INSTALLATION


Pre-removal Operation
  • Rocker Cover Removal (Refer to ).

 Post-installation Operation
  • Valve Clearance Check and Adjustment (Refer to ).
  • Rocker Cover Installation (Refer to ).




Removal steps
<<A>>
1.
 Exhaust rocker arm assembly


2.
 Nut


3.
 Adjusting screw


4.
 Exhaust rocker arm


5.
 Pivot bolt


·
 Inlet camshaft (Refer to ).

>>A<<
 6.
 Rocker arm and shaft assembly


7.
 Nut


8.
 Adjusting screw


9.
 Rocker arm and shaft


10.
 Piston (T-lever)


11.
 Piston spring


12.
 Piston spring seat

REMOVAL SERVICE POINT

<<A>> EXHAUST ROCKER ARM ASSEMBLY REMOVAL

1.
caution The crankshaft should always be turned in a clockwise direction.
Align the camshaft sprocket timing marks and set the No. 1 cylinder at top dead centre.

2.Loosen the adjusting screws of the No. 1 and No. 3 exhaust rocker arm assemblies shown in the figure.
3.Remove the exhaust rocker arm assembly.
4.Turn the crankshaft 360° clockwise to bring No. 4 cylinder to the top dead centre position.

5.Loosen the adjusting screws of the No.2 and No.4 exhaust rocker arm assemblies shown in the figure.
6.Slide the spherical surface of the adjusting screw from the pivot bolt, and remove the exhaust rocker arm assembly.

INSTALLATION SERVICE POINT

>>A<< ROCKER ARM AND SHAFT ASSEMBLY INSTALLATION

1.Install the rocker arm and shaft assembly so that the Φ5.0 mm holes of rocker arm shaft face the cylinder head side.
2.Check that the identification marks on the rocker arm and shaft assembly are on the position shown in the figure.
3.Tighten the rocker arm and shaft mounting bolts to the specified torque.
Tightening torque: 31 ± 3 N·m