Page 825 of 1033
VALVE SPRING
Free height mm (in) 55.43 (2.1823)
Pressure N (kg, lb) at height mm (in) 354 (36.1, 79.6) at 32.3 (1.2717)
Out-of-square mm (in) 2.4 (0.094)
VALVE LIFTER
Unit: mm (in)
Valve lifter outer diameter 34.450 - 34.465 (1.3563 - 1.3569)
Lifter guide inner diameter 34.495 - 34.515 (1.3581 - 1.3589)
Clearance between lifter and lifter guide 0.030 - 0.065 (0.0012 - 0.0026)
VALVE GUIDE
Unit: mm (in)
FEM071
Standard
Valve guideOuter diameter 11.023 - 11.034 (0.4340 - 0.4344)
Inner diameter (Finished size) 7.000 - 7.015 (0.2756 - 0.2762)
Cylinder head valve guide hole diameter 10.996 - 10.975 (0.4329 - 0.4321)
Interference fit of valve guide0.027 - 0.059 (0.0011 - 0.0023)
Standard
Stem to guide clearanceIntake 0.023 - 0.053 (0.0009 - 0.0021)
Exhaust 0.040 - 0.070 (0.0016 - 0.0028)
Valve deflection limit0.2 (0.0079)
Projection length12.8 - 13.2 (0.5309 - 0.5197)
SERVICE DATA AND SPECIFICATIONS (SDS)ZD
Valve (Cont'd)
EM-1087
Page 826 of 1033
Valve Seat
Unit: mm (in)
SEM374G
SEM373G
SEM375G
Standard Service
Cylinder head seat recess diameter
(D)Intake 33.000 - 33.015 (1.2992 - 1.2998) 33.500 - 33.515 (1.3189 - 1.3195)
Exhaust 31.495 - 31.510 (1.2400 - 1.2405) 31.995 - 32.010 (1.2596 - 1.2602)
Valve seat interference fitIntake 0.050 - 0.078 (0.0020 - 0.0031)
Exhaust 0.040 - 0.066 (0.0016 - 0.0026)
SERVICE DATA AND SPECIFICATIONS (SDS)ZD
EM-1088
Page 827 of 1033
Valve seat outer diameter (d)Intake 33.065 - 33.078 (1.3018 - 1.3023) 33.565 - 33.578 (1.3215 - 1.3220)
Exhaust 31.550 - 31.561 (1.2421 - 1.2426) 32.050 - 32.061 (1.2618 - 1.2622)
Height (h)Intake 6.75 - 6.85 (0.2657 - 0.2697) 6.75 - 6.85 (0.2657 - 0.2697)
Exhaust 7.35 - 7.45 (0.2894 - 0.2933) 7.35 - 7.45 (0.2894 - 0.2933)
Depth (L)Intake 43.65 - 44.35 (1.7185 - 1.7461)
Exhaust 43.65 - 44.35 (1.7185 - 1.7461)
SERVICE DATA AND SPECIFICATIONS (SDS)ZD
Valve Seat (Cont'd)
EM-1089
Page 828 of 1033
Camshaft and Camshaft Bearing
Unit: mm (in)
Standard Limit
Camshaft journal to bearing clearance 0.045 - 0.090 (0.0018 - 0.0035) 0.09 (0.0035)
Inner diameter of camshaft bearing 30.000 - 30.021 (1.1811 - 1.1819) Ð
Outer diameter of camshaft journal 29.931 - 29.955 (1.1784 - 1.1793) Ð
Camshaft runout [TIR*] Ð 0.02 (0.0008)
Camshaft sprocket runout [TIR*] Less than 0.15 (0.0059) Ð
Camshaft end play 0.065 - 0.169 (0.0026 - 0.0067) 0.2 (0.008)
*: Total indicator reading
EM671
Cam height ªAºIntake 40.468 - 40.508 (1.5932 - 1.5948)
Exhaust 40.830 - 40.870 (1.6075 - 1.6091)
Wear limit of cam height0.15 (0.0059)
Valve timing
SEM372G
Unit: degree
abcde
234 220 10 34 50
SERVICE DATA AND SPECIFICATIONS (SDS)ZD
EM-1090
Page 829 of 1033
Cylinder Block
Unit: mm (in)
SEM370G
Surface flatnessStandardLess than 0.03 (0.0012)
Limit0.10 (0.0039)
Cylinder bore Inner diameterStandardGrade 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 (AþBþC)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 cylindersLimitLess than 0.05 (0.0020)
Piston, Piston Ring and Piston Pin
AVAILABLE PISTON
Unit: mm (in)
SEM369G
Piston skirt diameter ªAº StandardGrade 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 dimension10 (0.39)
Piston pin hole diameter32.997 - 33.005 (1.2991 - 1.2994)
Piston clearance to cylinder block0.040 - 0.060 (0.0016 - 0.0024)
SERVICE DATA AND SPECIFICATIONS (SDS)ZD
EM-1091
Page 830 of 1033

PISTON RING
Unit: mm (in)
Standard Limit
Side clearanceTop 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 gapTop 0.30 - 0.45 (0.0118 - 0.0177) 1.5 (0.059)
2nd 0.50 - 0.65 (0.0197 - 0.0256) 1.5 (0.059)
Oil (rail ring) 0.25 - 0.45 (0.0098 - 0.0177) 1.5 (0.059)
PISTON PIN
Unit: mm (in)
Piston pin outer diameter32.993 - 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 clearanceStandard 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 distance154.5 (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 35.087 - 36.000 (1.3814 - 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 clearanceStandard 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-1092
Page 831 of 1033
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 ªrº50.95 - 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 playStandard 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-1093
Page 832 of 1033
Available Connecting Rod Bearing
CONNECTING ROD BEARING
Grade number Thickness 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 bearing journal diameterFront 50.940 - 51.010 (2.0055 - 2.0083)
Rear 50.740 - 50.810 (1.9976 - 2.0004)
Balancer shaft journal outer diameterFront 53.980 - 54.010 (2.1252 - 2.1264)
Rear 53.780 - 53.810 (2.1173 - 2.1185)
Balancer shaft journal oil clearanceStandard 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-1094