Isuzu AA-6HK1T Workshop Manual page 146

1. Remove the cylinder head assembly.
Refer to "Cylinder Head Removal" in this manual.
2. Remove the oil pan.
Refer to "Oil Pan Removal" in this manual.
3. Remove the flywheel housing .
Refer to "Flywheel Housing Removal" in this manual.
4. Remove the crank pulley.
Refer to "Crank Pulley Removal" in this manual.
5. Remove the front cover.
Refer to "Front Cover Removal" in this manual.
6. Remove the timing gears.
Refer to "Timing Gear Removal " in this manual.
7. Remove to the piston with the connecting rod.
Refer to "Piston Removal " in this manual.
8. Measure the crankshaft end play at No. 7 crankshaft
journal before removing the crankshaft thrust
bearing.
Crankshaft end play
Standard: 0.04 - 0.205 mm (0.0016 - 0. 81 in)
Limit : 0.54 mm (0. 021 in)
If the measured value exceeds the specified limit, the
crankshaft thrust bearing must be replaced.
9. Remove the crankcase.
1. Loosen the crankcase bolts (M14/14 pieces) a
little at a time in the numerical order shown in the
illustration.
1
2
2. Loosen the crankcase bolts (M10/25 pieces)
evenly from outside to inside.
3. Screw M10 bolts (crankcase bolts) into the four
thread holes (marked with asterisks) and tighten
them evenly. Separate the crankcase from the
cylinder block.
015EY00084
4. Remove the thrust bearing .
Clean the crankcase surfaces and remove the
sealant residue.
10. Remove the crankshaft from the cylinder block.
11. Remove the upper crankshaft bearings.
• Keep the crankshaft bearings in order for
installation to their original position.
• Clean the cylinder block surfaces and bores.
Remove the sealant residue and carbon deposits.
• Use compressed air to thoroughly clean the inside
and outside surfaces of the cylinder block, the oil
holes, and the water jackets.
ENGINE MECHANICAL
5 9 13 12
6 10 14 11
＊
＊
6A–95
8 4
7 3
012EY00057
F
012MX006