MAINTENANCE MANUAL OF GW4D20/GW4D20B TURBOCHARGED DIESEL ENGINES
230
Great Wall Baoding Internal Combustion Engine
Manufacturing Company Limited
Fig. 5-3-14 Removing and installing the
engine brackets
Fig. 5-3-15 Installing the fastening nuts of left /
right engine bracket
Fig. 5-3-16 Installing the front exhaust pipe
Removing left / right engine bracket
○
13
(1) Remove 3 hexagon bolts (M10×1.25×25) fixing the
left bracket to the cylinder body and the spring washer
and plain washer subassembly, and remove the left
bracket. See Fig. 5-3-14.
(2) Remove 3 hexagon bolts (M10×1.25×25) fixing the
right bracket to the cylinder body and the spring washer
and plain washer subassembly, and remove the right
bracket. See Fig. 5-3-14.
Installation
Installing the engine assembly
○
13
(1) Install the right bracket to the right side of the
cylinder
body.
Fix
it
with
3
hexagon
bolts
(M10×1.25×25) and the spring washer and plain washer
subassembly as per specified torque. See Fig. 5-3-14.
(2) Install the left bracket to the right side of the cylinder
body. Fix it with 3 hexagon bolts (M10×1.25×25) and
the spring washer and plain washer subassembly as
per specified torque. See Fig. 5-3-14.
Tightening torques for fastening nuts of left / right
engine bracket
45N·
m±10N·
m
Installing the engine assembly
○
12
Use a crane to hitch the engine hook, and rest the
engine steady at the mounting position of the frame.
Installing the fastening nuts of engine bracket
○
11
After installing the engine, tighten 2 nuts that fix left /
right bracket to the frame studs to specified torques, as
shown in Fig. 5-3-15.
Tightening torques for fastening nuts of left / right
engine bracket
95N·
m±10N·
m
Installing the catalytic converter pipe
⑩
Connect the catalytic converter pipe to the turbocharger
or the front exhaust pipe, install the sealing gaskets on
both ends, and tighten the fastening bolts and nuts of
catalytic converter pipe to specified torques. See Fig.
5-3-16.
Tightening torques for fastening bolts and nuts of
catalytic converter pipe
23N·
m±3N·
m
Engine
bracket
Cylinder
body
