SERVICE INFORMATION
2-2
SERVICE INFORMATION
MAINTENANCE STANDARDS
Unit: mm (in)
Part
Item
Standard
Service
limit
Engine
Maximum speed (at no load)
3,850 ± 150 min
-1
(rpm)
–
Idle speed
1,400 ± 150 min
-1
(rpm)
–
Cylinder compression
0.51-0.69 MPa (5.2-7.0 kgf/cm
2
, 74-100
psi) / 600 min
-1
(rpm)
–
Cylinder head
Warpage
–
0.10 (0.004)
Cylinder
Sleeve I.D.
88.000 – 88.017 (3.4646 – 3.4652)
88.170
(3.4710)
Piston
Skirt O.D.
87.975 – 87.985 (3.4635 – 3.4640)
87.85
(3.459)
Piston-to-cylinder clearance
0.015 – 0.042 (0.0006 – 0.0016)
0.12 (0.005)
Piston pin bore I.D.
20.002 – 20.008 (0.7875 – 0.7877)
20.042
(0.7891)
Piston pin
Pin O.D.
19.994 – 20.000 (0.7872 – 0.7874)
19.950
(0.7854)
Piston pin-to-piston pin bore clearance
0.002 – 0.014 (0.0001 – 0.0006)
0.08 (0.003)
Piston rings
Ring side clearance
Top
0.015 – 0.060 (0.0006 – 0.0024)
0.15 (0.006)
Second
0.030 – 0.060 (0.0012 – 0.0024)
0.15 (0.006)
Ring end gap
Top
0.200 – 0.350 (0.0079 – 0.0138)
1.0 (0.04)
Second
0.350 – 0.500 (0.0138 – 0.0197)
1.0 (0.04)
Oil (side rail)
0.2 – 0.7 (0.01 – 0.03)
1.0 (0.04)
Ring width
Top
1.160 – 1.190 (0.0457 – 0.047)
1.140
(0.0449)
Second
1.160 – 1.175 (0.0457 – 0.0463)
1.140
(0.0449)
Connecting rod
Small end I.D.
20.005 – 20.020 (0.7876 – 0.7882)
20.07
(0.790)
Big end side clearance
0.1 – 0.4 (0.004 – 0.016)
1.0 (0.04)
Big end I.D.
36.025 – 36.039 (1.4183 – 1.4189)
36.07
(1.420)
Big end oil clearance
0.040 – 0.064 (0.0016 – 0.0025)
0.12 (0.005)
Crankshaft
Crank pin O.D.
35.975 – 35.985 (1.4163 – 1.4167)
35.93
(1.415)
Crankshaft runout
–
0.1 (0.003)
Cylinder barrel
(Crankcase)
Camshaft bearing I.D.
16.000 – 16.018 (0.6299 – 0.6306)
16.05
(0.632)
Crankcase cover
Camshaft bearing I.D.
16.000 – 16.018 (0.6299 – 0.6306)
16.05
(0.632)
Valves
Valve clearance
IN
0.15 ± 0.02
–
EX
0.20 ± 0.02
–
Valve stem O.D.
IN
6.575 – 6.590 (0.2588 – 0.2594)
6.44 (0.254)
EX
6.535 – 6.550 (0.2572 – 0.2578)
6.40 (0.252)
Valve guide I.D.
IN/EX
6.600 – 6.615 (0.2598 – 0.2604)
6.66 (0.262)
Guide-to-stem clear-
ance
IN
0.010 – 0.040 (0.0004 – 0.0016)
0.11 (0.004)
EX
0.050 – 0.080 (0.0020 – 0.0032)
0.13 (0.005)
Valve seat width
1.0 – 1.2 (0.04 – 0.05)
2.0 (0.08)
Valve spring free length
39.0 (1.54)
37.5 (1.48)
Valve spring perpendicularity
–
1.5° max.
Camshaft
Cam height
IN
32.498 – 32.698 (1.2794 – 1.2873)
32.198
(1.2676)
EX
31.985 – 32.185 (1.2592 – 1.2671)
29.886
(1.1766)
Camshaft O.D.
15.966 – 15.984 (0.6286 – 0.6293)
15.92
(0.627)
62Z5F000.book 2 ページ ２０１０年３月２３日 火曜日 午後３時３１分
