Isuzu AA-6HK1T, Workshop Manual

Page: 149 / 242

6A–98 ENGINE MECHANICAL
5. Apply molybdenum disulfide grease to the lower
crankcase bolt threads and setting faces.
6. Tighten the crankcase M14 bolts in three steps
using the angular tightening method.
Torque:
1st Step: 98 N·m (10 kgm/72 lbft)
2nd Step: 132 N·m (13.5 km/98 lbft)
3rd Step: 30 - 60 deg.
7. Check that the crankshaft rotates smoothly.
NOTE: Lower crankcase bolts can be reused six (6)
times.
8. Tighten the lower crankcase M10 bolts a little at a
time in the numerical order shown in the
illustration.
Torque: 37 N·m (3.8 kgm/27 lbft)
CAUTION: The lower crankcase and the cylinder
block are machined as a single unit. They can not be
replaced separately. Always replace the lower
crankcase and the cylinder block as a set.
7. Install the piston with the connecting rod.
Refer to “Piston Installation” in this manual.
8. Install the timing gears to the cylinder block.
Refer to “Timing Gear Installation” in this manual.
9. Install the flywheel housing to the cylinder block.
Refer to “Flywheel Housing Installation” in this
manual.
012EY00014
012EY00061
1
2 3
4 5
6 7
8 9
A
0
B C
D
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23 19 15 11 7 3 1 5 9 13 17 21 25
24 20 16 12 8 4 2 6 10 14 18 22
012EY00062