Engine - Engine and crankcase
Inspection point
Nominal
Standard
Limit
Remark
Piston ring
Clearance between the piston
ring and ring groove
- Top compression ring
0.09 - 0.11 mm
(
0.0035 -
0.0043 in
)
0.30 mm
(
0.0118
in
)
Replace the rings until the limits
are reached, then replace the
piston.
- Intermediate ring
0.07 - 0.11 mm
(
0.0028 -
0.0043 in
)
0.20 mm
(
0.0079
in
)
Replace the rings until the limits
are reached, then replace the
piston.
- Oil ring
0.03 - 0.07 mm
(
0.0012 -
0.0028 in
)
0.20 mm
(
0.0079
in
)
Replace the rings until the limits
are reached, then replace the
piston.
Piston ring end gap
- Top compression ring
0.15 - 0.30 mm
(
0.0059 -
0.0118 in
)
1.50 mm
(
0.0591
in
)
Replace
- Intermediate ring
0.15 - 0.30 mm
(
0.0059 -
0.0118 in
)
1.50 mm
(
0.0591
in
)
Replace
- Oil ring
0.20 - 0.40 mm
(
0.0079 -
0.0157 in
)
1.50 mm
(
0.0591
in
)
Replace
Connecting rod
Bend and torsion (over a
100 mm
(
3.9 in
) span
0.05 mm
(
0.0020 in
) or
less
0.15 mm
(
0.0059
in
)
End play
0.10 - 0.35 mm
(
0.0039 -
0.0138 in
)
0.50 mm
(
0.0197
in
)
Replace the connecting rod
Crankshaft
Crank journal outside diameter
52 mm
(
2.05 in
)
51.985 - 52.000 mm
(
2.0467 - 2.0472 in
)
Crank pin outside diameter
48 mm
(
1.89 in
)
47.950 - 47.965 mm
(
1.8878 - 1.8884 in
)
Crankshaft runout
0.025 mm
(
0.0010 in
) or
less
0.050
mm
(
0.00
20 in
)
Repair or replace
Main bearing oil clearance
0.030 - 0.077 mm
(
0.0012
- 0.0030 in
)
0.100
mm
(
0.00
39 in
)
Replace main bearing
Connecting rod bearings oil
clearance
0.025 - 0.072 mm
(
0.0010
- 0.0028 in
)
0.150
mm
(
0.00
59 in
)
Replace connecting rod
bearings
End play
0.050 - 0.175 mm
(
0.0020
- 0.0069 in
)
0.500
mm
(
0.01
97 in
)
Replace flanged No. 3 main
bearing
Timing gear backlash
Between crankshaft gear and
idler gear
0.04 - 0.12 mm
(
0.0016 -
0.0047 in
)
0.30 mm
(
0.0118
in
)
Replace
Between idler gear and valve
camshaft gear
0.04 - 0.12 mm
(
0.0016 -
0.0047 in
)
0.30 mm
(
0.0118
in
)
Replace
Between idler gear and pump
camshaft gear
0.04 - 0.12 mm
(
0.0016 -
0.0047 in
)
0.30 mm
(
0.0118
in
)
Replace
47827505 04/01/2016
10.1 [10.001] / 5
Summary of Contents for Boomer 24 Tier 4B
Page 2: ...SERVICE MANUAL Boomer 24 47827505 04 01 2016 EN Find manuals at https best manuals com...
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Page 8: ...INTRODUCTION 47827505 04 01 2016 1 Find manuals at https best manuals com...
Page 13: ...INTRODUCTION Safety rules BT09A213 1 47827505 04 01 2016 6...
Page 33: ...INTRODUCTION 47827505 04 01 2016 26...
Page 34: ...SERVICE MANUAL Engine Boomer 24 47827505 04 01 2016 10...
Page 36: ...Engine 10 Engine and crankcase 001 Boomer 24 47827505 04 01 2016 10 1 10 001 1...
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