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Isuzu A-4BG1T - Page 103

Isuzu A-4BG1T
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ENGINE ASSEMBLY ifI 5-11
Lubricate
engine oil
kgom
(Ib.ft)
.
Crankshaft Bearing Cap
Bolt Torque
23.0-25.0 (166-181)
L 4
4) Check that the crankshaft turns smoothly by
manually rotating it.
6. Timing Gear Case
I) Apply liquid
gasket to the timing gear case
sur-
faces contacting
the cylinder body.
2) Tighten
the
timing gear
case bolts
to the speci-
fied torque.
kg*m (Ib.ft)
Timing Gear Case Bolt
Torque
2.1-3.1 (15.2-22.4)
il
8. Camshaft
Tighten the thrust
plate bolts through the camshaft
gear hole.
Thrust
Plate Bolt Torque
kg-m (Ib.ft)
.
2.1-3.1 (15.2-22.4)
A
kgDm (I b.ft)
I
I
Camshaft Gear Bolt
I A I
I
1 Torque
Oil port
Injection pump gear
i
Idle
gear
“8” mark
m /
Crankshaft
gea;
lerl
Bl
9. idler Gear Shaft
Use
the
thrust collar fixing
bolt as
a guide to install
the idler
gear
shaft.
The oil port must be facing the camshaft.
10. Idler Gear
. I) Install
the
idler gear.
Set the timing marks [A] and [B]
as shown in the
illustration.
2) Tighten the idler gear bolts seating the thrust
collar to the specified torque.
The
thrust collar must be installed with the
chamfered side facing the front of the engine.
kg-m (lb.ft)
46
Idle Gear Bolt Torque -
4.3-6.3 (37.1-45.6)
6B
4.5-6.5 (32.5-47.0)

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