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Cylinder Block
Unit: mm (in)
SEM370G
Surface flatnessStandard
Less than 0.03 (0.0012)
Limit 0.10 (0.0039)
Cylinder bore Inner diameter StandardGrade No. 1 96.000 - 96.010 (3.7795 - 3.7799)
Grade No. 2 96.010 - 96.020 (3.7799 - 3.7803)
Grade No. 3 96.020 - 96.030 (3.7803 - 3.7807)
Wear limit 0.20 (0.0079)
Out-of-round (X þ Y) Less than 0.02 (0.0008)
Taper (A þBþC) Less than 0.02 (0.0008)
Main journal inner diameter (Without bearing) 74.981 - 75.000 (2.9520 - 2.9528)
Difference in inner diam-
eter between cylinders Limit
Less than 0.05 (0.0020)
Piston, Piston Ring and Piston Pin
AVAILABLE PISTON
Unit: mm (in)
SEM369G
Piston skirt diameter ªAºStandardGrade No. 1 95.950 - 95.960 (3.7776 - 3.7779)
Grade No. 2 95.960 - 95.970 (3.7779 - 3.7783)
Grade No. 3 95.970 - 95.980 (3.7783 - 3.7787)
ªaº dimension 10 (0.39)
Piston pin hole diameter 32.997 - 33.005 (1.2991 - 1.2994)
Piston clearance to cylinder block 0.040 - 0.060 (0.0016 - 0.0024)
SERVICE DATA AND SPECIFICATIONS (SDS)ZD
EM-90
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Page 182 of 1833

PISTON RING
Unit: mm (in)
StandardLimit
Side clearance Top
0.05 - 0.07 (0.0020 - 0.0028) 0.5 (0.020)
2nd 0.04 - 0.08 (0.0016 - 0.0031) 0.3 (0.012)
Oil ring 0.02 - 0.06 (0.0008 - 0.0024) 0.15 (0.0059)
End gap Top
0.25 - 0.45 (0.0098 - 0.0177) 1.5 (0.059)
2nd 0.50 - 0.65 (0.0197 - 0.0256) 1.5 (0.059)
Oil (rail ring) 0.25 - 0.50 (0.0098 - 0.0197) 1.5 (0.059)
PISTON PIN
Unit: mm (in)
Piston pin outer diameter 32.993 - 33.000 (1.2989 - 1.2992)
Interference fit of piston pin to piston þ0.003 to 0.012 (þ0.0001 to 0.0005)
Piston pin to connecting rod bushing clearance Standard 0.025 - 0.045 (0.0010 - 0.0018)
Limit 0.045 (0.0018)
*: Values measured at ambient temperature of 20ÉC (68ÉF)
Connecting Rod
Unit: mm (in)
Center distance 154.5 (6.083)
Bend [per 100 (3.94)] Limit 0.05 (0.0020)
Torsion [per 100 (3.94)] Limit 0.05 (0.0020)
Connecting rod small end inner diameter 35.987 - 36.000 (1.4168 - 1.4173)
Piston pin bushing inner diameter* 33.025 - 33.038 (1.3002 - 1.3007)
Connecting rod big end inner diameter 59.987 - 60.000 (2.3617 - 2.3622)
Crankshaft journal bearing inner diameter* 70.955 - 70.990 (2.7935 - 2.7949)
Side clearance Standard 0.10 - 0.22 (0.0039 - 0.0087)
Limit 0.22 (0.0087)
*: After installing in connecting rod
SERVICE DATA AND SPECIFICATIONS (SDS)ZD
Piston, Piston Ring and Piston Pin (Cont'd)
EM-91
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Page 183 of 1833
Crankshaft
Unit: mm (in)
Main journal dia. ªDmº70.907 - 70.920 (2.7916 - 2.7921)
Pin journal dia. ªDpº Grade No. 0 56.913 - 56.926 (2.2407 - 2.2412)
Center distance ªrº 50.95 - 51.05 (2.0059 - 2.0098)
Out-of-round (X þ Y) Standard Less than 0.01 (0.0004)
Taper (A þ B) Standard Less than 0.01 (0.0004)
Runout [TIR*] Standard Less than 0.01 (0.0004)
Limit Less than 0.03 (0.0012)
Free end play Standard 0.055 - 0.140 (0.0022 - 0.0055)
Limit 0.25 (0.0098)
SEM645EM715
*: Total indicator reading
Available Main Bearing
UNDERSIZE
FEM127
Size
Thickness ªTº mm (in) Width ªWº mm (in)Main journal diameter ªDmº
Standard 2.005 - 2.013 (0.0789 - 0.0793)
25.74 - 26.00 (1.0134 - 1.0236)Grind so that bearing clearance is
the specified value.
US 025 2.130 - 2.138 (0.0839 - 0.0842)
US 050 2.255 - 2.263 (0.0888 - 0.0891)
US 075 2.380 - 2.388 (0.0937 - 0.0940)
US 100 2.505 - 2.513 (0.0986 - 0.0989)
SERVICE DATA AND SPECIFICATIONS (SDS)ZD
EM-92
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Page 184 of 1833
Available Connecting Rod Bearing
CONNECTING ROD BEARING
Grade numberThickness ªTº mm (in) Width ªWº mm (in)
Standard 1.505 - 1.513 (0.0593 - 0.0596)
25.9 - 26.1 (1.020 - 1.028)
US 025 1.630 - 1.638 (0.0642 - 0.0645)
US 050 1.755 - 1.763 (0.0691 - 0.0694)
US 075 1.880 - 1.888 (0.0740 - 0.0743)
US 100 2.005 - 2.013 (0.0789 - 0.0793)
BALANCER SHAFT BUSH
Unit: mm (in)
SEM371G
Balancer shaft journal outer diameter
Front 50.875 - 50.895 (2.0029 - 2.0037)
Rear 50.675 - 50.695 (1.9951 - 1.9959)
Balancer shaft bearing inner diameter Front 53.980 - 54.010 (2.1252 - 2.1264)
Rear 53.780 - 53.810 (2.1173 - 2.1185)
Balancer shaft journal oil clearance Standard 0.045 - 0.135 (0.0018 - 0.0053)
Limit 0.180 (0.0071)
Balancer shaft bush outer diameter (d) Front 54.090 - 54.130 (2.1295 - 2.1311)
Rear 53.890 - 53.930 (2.1216 - 2.1232)
Thickness (t) Front 0.2 - 0.4 (0.008 - 0.016)
Rear 0.2 - 0.4 (0.008 - 0.016)
SERVICE DATA AND SPECIFICATIONS (SDS)ZD
EM-93
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Page 185 of 1833
Miscellaneous Components
Unit: mm (in)
Flywheel runout [TIR]*Less than 0.15 (0.0059)
Drive plate runout [TIR]* Less than 0.1 (0.0039)
*: Total indicator reading
BEARING CLEARANCE
Unit: mm (in)
Main bearing clearance Standard 0.035 - 0.083 (0.0014 - 0.0033)
Connecting rod bearing clearance Standard 0.035 - 0.077 (0.0014 - 0.0030)
SERVICE DATA AND SPECIFICATIONS (SDS)ZD
EM-94
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Page 187 of 1833
Special Service Tools
*: Special tool or commercial equivalent
Tool number
Tool nameDescription
ST0501S000*
Engine stand assembly
q
1ST05011000
Engine stand
q
2ST05012000
Base
Disassembling and assembling
KV10106500*
Engine attachment
KV11103200*
Engine sub-attachment
q1KV10109210*
Valve spring
compressor
q
2KV10111200*
Adapter
Disassembling and assembling valve
components
KV10107900*
Valve oil seal puller
Disassembling valve oil seal
KV11103400
Valve oil seal drift
Installing valve oil seal
ST11033000*
Valve guide drift
Removing valve guide
PREPARATIONTD27Ti
EM-96
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Page 188 of 1833
*: Special tool or commercial equivalent
Tool number
Tool nameDescription
KV11103900*
Valve guide drift
Installing valve guide
q
1K V 111 0 111 0
Valve seat remover
q
2KV11103610
Adapter (Intake)
q
3KV11103620
Adapter (Exhaust)
Removing valve seat
q
1ST15243000
Valve seat drift
q
2KV11103810
Adapter (Intake)
q
3KV11103820
Adapter (Exhaust)
Installing valve seat
EM03470000*
Piston ring compressor
Installing piston into cylinder
KV111033S0
Engine stopper
q
1KV11103310
Stopper plate
q
2KV10105630
Stopper gear
Preventing crankshaft from rotating
ST16610001*
Pilot bushing puller
Removing pilot bushing
PREPARATIONTD27Ti
Special Service Tools (Cont'd)
EM-97
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Page 189 of 1833
*: Special tool or commercial equivalent
Tool number
Tool nameDescription
KV111045SO
Cam bushing replacer
set
q
1KV11104510
Replacer bar
q
2KV1104520
Guide plate
q
3KV11104530
Adapter
(1st bushing)
q
4ST15243000
Drift
Removing cam bushing or installing cam
bushing
KV10109300*
Injection pump drive
gear holder
Preventing drive gear from rotating
KV11103000*
Injection pump drive
gear puller
Removing drive gear
q
1ED19601000
Compression gauge
q
2ED19600600
Compression gauge
adapter (for glow plug
hole)
q
3ED19600700
Compression gauge
adapter (for injector
hole)
Checking compression pressure
WS39930000*
Tube presser
Pressing the tube of liquid gasket
KV119E0030
Nozzle holder socket
Removing and installation injection
nozzle assembly
ST11032000*
Valve guide reamer
8.0 mm (0.315 in) dia.
Reaming valve guide
PREPARATIONTD27Ti
Special Service Tools (Cont'd)
EM-98
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