Intake Manifold; Exhaust Manifold; Cylinder Head - Isuzu Trooper II 1986 Manual

Remove drive shaft. Disconnect speedometer cable. Disconnect
shift lever from automatic transmission (if equipped).
8) Remove clutch slave cylinder from manual transmission (if
equipped). Remove exhaust pipe bracket and catalytic converter.
Disconnect exhaust pipe from exhaust manifold. Support engine and
remove rear engine mount. Remove engine and transmission from vehicle.
Installation
To install, reverse removal procedure.

INTAKE MANIFOLD

Removal (P'UP & Trooper II)
1) Drain cooling system. Remove air cleaner assembly.
Disconnect radiator, fuel and vacuum hose from intake manifold.
Disconnect heater hoses at firewall and from rear of intake manifold.
Disconnect accelerator cable from carburetor.
2) Disconnect distributor vacuum hose, temperature sending
unit and temperature switch wiring. Disconnect choke and solenoid
wiring from carburetor. Disconnect ground wire and canister purge
hose.
3) Disconnect EFE heater wiring and PCV hose from valve
cover. Disconnect EGR pipe from EGR valve. Disconnect air injection
vacuum hose from 3-way connector. Remove intake manifold and
carburetor assembly.
Installation
To install, reverse removal procedure.
Removal & Installation (Impulse)
Drain cooling system. Disconnect top radiator hose. Remove
A/C compressor and bracket (if equipped). Disconnect EGR pipe from
rear of intake manifold. Disconnect throttle body cable, wiring, fuel
and vacuum hoses. Remove intake manifold and throttle
body/intercooler as an assembly. To install, reverse removal
procedure.

EXHAUST MANIFOLD

Removal & Installation (P'UP & Trooper II)
Remove air cleaner bolts and loosen clamp bolt. Lift air
cleaner to remove hot air hose. Remove heat shield. Remove EGR pipe
clamp from top of transmission and disconnect EGR pipe. Disconnect
exhaust pipe and oxygen sensor wiring (if equipped). Remove exhaust
manifold. To install, reverse removal procedure.
Removal & Installation (Impulse)
Disconnect EGR pipe. Remove heat shield. Disconnect exhaust
pipe. Disconnect oxygen sensor wiring. On turbo models, disconnect
oil supply, water supply and return lines at turbocharger. Separate
turbocharger from exhaust manifold. Remove exhaust manifold. To
install, reverse removal procedure.

CYLINDER HEAD

NOTE: A timing belt is used on 2.0L turbo and 2.3L models. A
timing chain is used on 1.9L models.
Removal (1.9L Models)
1) Remove valve cover, gasket and front plug. Remove
camshaft sprocket bolt. Position timing chain and sprocket between
guide and tensioner. Insert a screwdriver along right side of chain
and depress tensioner lock lever rearward. Push in on tensioner