Exhaust Manifold Rh; Removal; Installation - Isuzu Trooper 1999 Workshop Manual

Removal

1. Disconnect battery ground cable.
2. Remove torsion bar. Refer to removal procedure in
Front Suspension section.
3. Remove exhaust front pipe three stud nuts and two
nuts then disconnect exhaust front pipe.
Legend
(1) Exhaust Front Pipe RH
(2) O Sensor
2
4. Remove heat protector two fixing bolts then the heat
protector.
5. Remove exhaust gas recirculation (EGR) pipe fixing
bolt and nut from exhaust manifold, remove a nut
from EGR valve and a bolt from rear side of cylinder
head for bracket of EGR pipe then remove the EGR
pipe.

Exhaust Manifold RH

Legend
(1) Exhaust Gas Recirculation (EGR) Valve
(2) EGR Pipe
6. Remove exhaust manifold eight fixing nuts then the
exhaust manifold.
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Installation

1. Install exhaust manifold and tighten bolts to the
specified torque.
Torque : 52 N·m (38 lb ft)
2. Install the EGR pipe, tighten bolt and nut on exhaust
manifold to specified torque.
Torque : 28 N·m (21 lb ft)
Tighten nut to EGR valve to the specified torque.
Torque : 44 N·m (33 lb ft)
Tighten the bolt for EGR pipe bracket to specified
torque.
Torque : 25 N·m (18 lb ft)
3. Install heat protector
4. Install exhaust front pipe and tighten three stud nuts
and two nuts to the specified torque.
Torque:
Stud nuts: 67 N·m (49 lb ft)
Nuts: 43 N·m (32 lb ft)
5. Install the torsion bar and readjust the vehicle height.
Refer to installation and vehicle height adjustment
procedure for Front Suspension.
ENGINE MECHANICAL 6A–27
056RW001