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Cylinder BlockNLEM0081Unit: mm (in)
JEM207G
Surface flatnessStandardLess than 0.03 (0.0012)
Limit0.04 (0.0016)
Cylinder bore Inner diameterStandardGrade No. 1 86.000 - 86.010 (3.3858 - 3.3862)
Grade No. 2 86.010 - 86.020 (3.3862 - 3.3866)
Grade No. 3 86.020 - 86.030 (3.3866 - 3.3870)
Wear limit 0.07 (0.0028)
Out-of-round (X þ Y)Less than 0.015 (0.0006)
Taper (AþBþC)Less than 0.010 (0.0004)
Main journal inner
diameter grade
(Without bearing)Grade No. 0
Grade No. 1
Grade No. 266.654 - 66.663 (2.6242 - 2.6245)
66.663 - 66.672 (2.6245 - 2.6249)
66.672 - 66.681 (2.6249 - 2.6252)
Difference in inner
diameter between
cylindersLimitLess than 0.05 (0.0020)
Piston, Piston Ring and Piston PinNLEM0082AVAILABLE PISTONNLEM0082S01Unit: mm (in)
SEM882E
Piston skirt diameter ªAº StandardGrade No. 1 85.920 - 85.930 (3.3827 - 3.3831)
Grade No. 2 85.930 - 85.940 (3.3831 - 3.3835)
Grade No. 3 85.940 - 85.950 (3.3835 - 3.3839)
0.25 (0.0098) oversize (Service) 86.170 - 86.200 (3.3925 - 3.3937)
0.50 (0.0197) oversize (Service) 86.420 - 86.450 (3.4024 - 3.4035)
ªaº dimension48.83 (1.9224)
Piston pin hole diameter27.997 - 28.005 (1.1022 - 1.1026)
SERVICE DATA AND SPECIFICATIONS (SDS)YD
Cylinder Block
EM-248
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Piston clearance to cylinder block 0.070 -0.090 (0.0028 - 0.0035)
PISTON RINGNLEM0082S02Unit: mm (in)
Standard Limit
Side clearanceTop 0.050 - 0.090 (xxx - xxx) 0.2 (0.008)
2nd 0.050 - 0.090 (0.0020 - 0.0035) 0.1 (0.004)
Oil ring 0.030 - 0.070 (0.0012 - 0.0028) Ð
End gapTop 0.20 - 0.35 (0.0079 - 0.0138) 1.0 (0.039)
2nd 0.39 - 0.54 (0.0154 - 0.0213) 1.0 (0.039)
Oil (rail ring) 0.25 - 0.50 (0.0098 - 0.0197) 1.0 (0.039)
PISTON PINNLEM0082S03Unit: mm (in)
Piston pin outer diameter27.994 - 28.000 (1.1021 - 1.1024)
Interference fit of piston pin to piston 0.002 - 0.006 (0.0001 - 0.0002)
Piston pin to connecting rod bushing clearanceStandard 0.026 - 0.044 (0.0010 - 0.0017)
Limit 0.057 (0.0022)
*: Values measured at ambient temperature of 20ÉC (68ÉF)
Connecting RodNLEM0083Unit: mm (in)
Center distance157.5 (6.201)
Bend [per 100 (3.94)] Limit 0.12 (0.0047)
Torsion [per 100 (3.94)] Limit 0.12 (0.0047)
Connecting rod small end inner diameter 30.080 - 31.000 (1.1842 - 1.2205)
Piston pin bushing inner diameter* 28.026 - 28.038 (1.1034 - 1.1039)
Connecting rod big end inner diameter 55.000 - 55.013 (2.1654 - 2.1659)
Side clearanceStandard 0.200 - 0.350 (0.0079 - 0.0138)
Limit 0.4 (0.016)
*: After installing in connecting rod
CrankshaftNLEM0084Unit: mm (in)
Main journal dia. ªDmº gradeGrade No. 0
Grade No. 1
Grade No. 262.967 - 62.975 (2.4790 - 2.4793)
62.959 - 62.967 (2.4787 - 2.4790)
62.951 - 62.959 (2.4784 - 2.4787)
Pin journal dia. ªDpºGrade No. 0 51.968 - 51.974 (2.0460 - 2.0462)
Grade No. 1 51.961 - 51.968 (2.0457 - 2.0460)
Grade No. 2 51.954 - 51.961 (2.0454 - 2.0457)
Center distance ªrº46.97 - 47.03 (1.8492 - 1.8516)
Out-of-round (X þ Y) Standard/Limit Less than 0.003 (0.0001)/Less than 0.005 (0.0002)
Taper (A þ B) Standard/Limit Less than 0.003 (0.0001)/Less than 0.005 (0.0002)
Runout [TIR*]Standard Less than 0.05 (0.0020)
Limit Less than 0.10 (0.0039)
SERVICE DATA AND SPECIFICATIONS (SDS)YD
Piston, Piston Ring and Piston Pin (Cont'd)
EM-249
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Free end playStandard 0.10 - 0.25 (0.0039 - 0.0098)
Limit 0.30 (0.0118)
SEM645EM715
*: Total indicator reading
Available Main BearingNLEM0085
SEM255G
Grade number Thickness ªTº mm (in) Width ªWº mm (in) Identification color
0 1.816 - 1.820 (0.0715 - 0.0717)
19.9 - 20.1 (0.783 - 0.791)Black
1 1.820 - 1.824 (0.0717 - 0.0718) Red
2 1.824 - 1.828 (0.0718 - 0.0720) Green
3 1.828 - 1.832 (0.0720 - 0.0721) Yellow
4 1.832 - 1.836 (0.0721 - 0.0723) Blue
UNDERSIZENLEM0085S01Unit: mm (in)
Thickness Main journal diameter ªDmº
0.25 (0.0098) 1.949 - 1.953 (0.0767 - 0.0769)Grind so that bearing clearance is the specified
value.
Available Connecting Rod BearingNLEM0086CONNECTING ROD BEARINGNLEM0086S01
Grade number Thickness ªTº mm (in) Width ªWº mm (in) Identification color (mark)
0 1.492 - 1.496 (0.0587 - 0.0589)
22.9 - 23.1
(0.902 - 0.909)Black
1 1.496 - 1.500 (0.0589 - 0.0591) Brown
2 1.500 - 1.504 (0.0591 - 0.0592) Green
SERVICE DATA AND SPECIFICATIONS (SDS)YD
Crankshaft (Cont'd)
EM-250
Page 2508 of 3051
UNDERSIZENLEM0086S02Unit: mm (in)
Thickness Crank pin journal diameter ªDpº
0.08 (0.0031) 1.536 - 1.540 (0.0605 - 0.0606)
Grind so that bearing clearance is the specified
value. 0.12 (0.0047) 1.556 - 1.560 (0.0613 - 0.0614)
0.25 (0.0098) 1.621 - 1.625 (0.0638 - 0.0640)
Miscellaneous ComponentsNLEM0087Unit: mm (in)
Flywheel runout [TIR]*Less than 0.15 (0.0059)
*: Total indicator reading
BEARING CLEARANCENLEM0087S01Unit: mm (in)
Main bearing clearanceStandard 0.039 - 0.066 (0.0015 - 0.0026)
Limit 0.10 (0.0039)
Connecting rod bearing clearanceStandard 0.031 - 0.061 (0.0012 - 0.0024)
Limit 0.09 (0.0035)
SERVICE DATA AND SPECIFICATIONS (SDS)YD
Available Connecting Rod Bearing (Cont'd)
EM-251
Page 2509 of 3051
SERVICE DATA AND SPECIFICATIONS (SDS)
Miscellaneous Components (Cont'd)
EM-252
Page 2510 of 3051

ACCELERATOR CONTROL, FUEL &
EXHAUST SYSTEMS
SECTION
FE
CONTENTS
QG/SR
PREPARATION...............................................................2
Special Service Tools ..................................................2
Commercial Service Tools ...........................................2
ACCELERATOR CONTROL SYSTEM...........................3
Removal and Installation .............................................3
Adjusting Accelerator Wire ..........................................3
MODELS WITH THROTTLE OPENER.........................3
MODELS WITHOUT THROTTLE OPENER..................4
FUEL SYSTEM................................................................5
Checking Fuel Lines ....................................................5
Removal and Installation .............................................5
Fuel Tank .....................................................................6
REMOVAL.................................................................6
INSTALLATION..........................................................8
Fuel Pump, Fuel Level Sensor Unit and Fuel
Filter .............................................................................9
REMOVAL.................................................................9
INSTALLATION........................................................10
EXHAUST SYSTEM...................................................... 11
Checking Exhaust System......................................... 11
Removal and Installation ........................................... 11
YD
PREPARATION.............................................................13
Special Service Tool ..................................................13Commercial Service Tool ...........................................13
ACCELERATOR CONTROL SYSTEM.........................14
Removal and Installation ...........................................14
Inspection...................................................................14
FUEL SYSTEM..............................................................15
Checking Fuel Lines ..................................................15
Water Draining from Fuel Filter .................................15
DRAINING WATER..................................................15
FUEL FILTER CHECK..............................................15
Changing Fuel Filter ..................................................15
REMOVAL...............................................................15
INSTALLATION........................................................16
Bleeding Fuel Filter....................................................16
Checking Priming Pump ............................................16
Checking Water in Fuel Filter Sensor (where
fitted) ..........................................................................17
Removal and Installation ...........................................17
Fuel Tank ...................................................................18
REMOVAL...............................................................19
INSTALLATION........................................................20
Fuel Level Sensor Unit ..............................................21
REMOVAL...............................................................21
INSTALLATION........................................................22
EXHAUST SYSTEM......................................................23
Checking Exhaust System.........................................23
Removal and Installation ...........................................23
Page 2511 of 3051
Special Service ToolsNLFE0029
Tool number
Tool nameDescription
KV10114400
Heated oxygen sensor
wrench
NT636
Loosening or tightening front and rear
heated oxygen sensors
a: 22 mm (0.87 in)
KV999G0010
Fuel tank lock ring
socket
NT057
Removing and installing fuel tank lock
ring
Commercial Service ToolsNLFE0030
Tool number
Tool nameDescription
Oxygen sensor thread
cleaner
AEM488
Reconditioning the exhaust system threads
before installing a new oxygen sensor (Use
with anti-seize lubricant shown below.)
a: 18 mm dia. with pitch 1.5 mm for zir-
conia oxygen sensor
b: 12 mm dia. with pitch 1.25 mm for
titania oxygen sensor
Anti-seize lubricant
(Permatex 133AR or
equivalent meeting MIL
specification MIL-A-
907)
AEM489
Lubricating oxygen sensor thread cleaning
tool when reconditioning exhaust system
threads
PREPARATIONQG/SR
Special Service Tools
FE-2
Page 2512 of 3051
Removalan dInstallation
YFE002
SEF793WB
Remova lan dInstallation