0C-2 Service Data:
Cy Piston Ring
Unit: mm (in)
Crankshaft
Unit: mm (in)
Oil Pump
Item
Standard
Limit
Compression pressure
(Automatic decomp. actuated)
1 300 – 1 800 kPa (13 – 18 kgf/cm
2
, 185 – 256 psi)
800 kPa
(8 kgf/cm
2
, 114 psi)
Compression pressure difference
—
200 kPa
(2 kgf/cm
2
, 28 psi)
Piston-to-cylinder clearance
0.025 – 0.040 (0.0010 – 0.0016)
0.120 (0.0047)
Cylinder bore
112.000 – 112.015 (4.4094 – 4.4100)
Nicks or Scratches
Piston diam.
111.968 – 111.983 (4.4081 – 4.4088)
Measure at 10 mm (0.4 in) from the skirt end.
111.880 (4.4047)
Cylinder distortion
—
0.05 (0.002)
Piston ring free end gap
1st
Approx. 15.7 (0.62)
12.6 (0.50)
2nd
Approx. 14.5 (0.57)
11.6 (0.46)
Piston ring end gap
1st
0.10 – 0.25 (0.004 – 0.010)
0.5 (0.020)
2nd
0.10 – 0.25 (0.004 – 0.010)
0.5 (0.020)
Piston ring-to-groove clearance
1st
—
0.180 (0.0071)
2nd
—
0.150 (0.0059)
Piston ring groove width
1st
0.93 – 0.95 (0.0366 – 0.0374)
—
1.55 – 1.57 (0.0610 – 0.0618)
—
2nd
1.21 – 1.23 (0.0476 – 0.0484)
—
Oil
2.51 – 2.53 (0.0988 – 0.0996)
—
Piston ring thickness
1st
0.86 – 0.91 (0.034 – 0.036)
—
1.38 – 1.40 (0.054 – 0.055)
—
2nd
1.17 – 1.19 (0.046 – 0.047)
—
Piston pin bore I.D.
23.002 – 23.008 (0.9056 – 0.9058)
23.030 (0.9067)
Piston pin O.D.
22.995 – 23.000 (0.9053 – 0.9055)
22.980 (0.9047)
Item
Standard
Limit
Conrod small end I.D.
23.010 – 23.018 (0.9059 – 0.9062)
23.040 (0.9071)
Conrod big end side clearance
0.100 – 0.200 (0.0039 – 0.0078)
0.30 (0.012)
Conrod big end width
23.95 – 24.00 (0.943 – 0.945)
—
Crank pin width
24.10 – 24.15 (0.949 – 0.951)
—
Conrod big end oil clearance
0.032 – 0.056 (0.0013 – 0.0022)
0.080 (0.0031)
Crank pin O.D.
54.976 – 55.000 (2.1644 – 2.1654)
—
Crankshaft journal oil clearance
0.010 – 0.028 (0.0004 – 0.0011)
0.080 (0.0031)
Crankshaft journal O.D.
54.982 – 55.000 (2.1646 – 2.1654)
—
Crankshaft thrust bearing thickness
2.250 – 2.550 (0.0886 – 0.1004)
—
Crankshaft thrust clearance
0.100 – 0.200 (0.0039 – 0.0078)
—
Crankshaft runout
—
0.05 (0.002)
Item
Standard
Limit
Oil pressure (at 60
°
C, 140
°
F)
Above 400 kPa (4.0 kgf/cm
2
, 57 psi)
Below 700 kPa (7.0 kgf/cm
2
, 100 psi)
at 3 000 r/min
—
Содержание VLR1800
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