Isuzu NKR 4J Series - Rocker Arm Shaft Assembly

4JB1/4JB1T/4JB1TC/4JG2 – ENGINE 6A1 – 17
ROCKER ARM SHAFT ASSEMBLY
REMOVAL
Preparation:
• Disconnect battery ground cable.
1. PCV Hose
2. Cylinder Head Cover
3. Rocker Arm Shaft Assembly
• Loosen bolts and nuts of rocker shaft bracket by turns
and remove rocker shaft assembly.
INSTALLATION
3. Rocker Arm Shaft Assembly
• Install rocker arm shaft with larger oil hole (φ4) to the
front of engine.
• Align fixing bolt with nut of rocker arm shaft and
tighten fixing bolts to the specified torque.
N∙m (kg∙m/lb∙ft)
54 (5.5/40)
6A1-17-1.tif
6A1-17-2.tif
6A1-17-3.tif
Removal steps
1. PCV hose
2. Cylinder head cover
3. Rocker arm shaft Assembly
Installation steps
To install, follow the removal steps in
the reverse order.