Isuzu NPR 4J Series - Exhaust Manifold Installation

4JB1/4JB1T/4JB1TC/4JG2 – ENGINE 6A1 – 11
INSTALLATION
5. Exhaust Manifold
• Tighten the fixing nuts and bolts to the specified
torque.
Manifold Bolt Torque N∙m(kg∙m/lb∙ft)
26 (2.7/20)
4. Heat Protector
• Remove the heat protector and tighten to the specified
torque.
Heat Protector Bolt Torque N∙m(kg∙m/lb∙ft)
19 (1.9/14)
3. Front Exhaust Pipe Stay Bolt
• Tighten the fixing bolts to the specified torque.
Stay Bolt Torque N∙m(kg∙m/lb∙ft)
40 (4.1/30)
2. Front Exhaust Pipe Nut
• Tighten the fixing nuts to the specified torque.
Without Exhaust Brake N∙m(kg∙m/lb∙ft)
69 (7/51)
With Exhaust Brake N∙m(kg∙m/lb∙ft)
69 (7/51)
1. Vacuum Hose (Exhaust Brake Model)
• Install the two hose a vacuum actuator.
• Connect battery ground cable.
• Start the engine and check coolant leakage.