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2.4 Serial number location
The engine serial number is stamped on the block above the oil dipstick. Refer to this number
when ordering parts or making technical inquiries.
序列号位置
2.5 Engine maintenance standards
Part Item Standard(mm) Service limit
Engine
Maximum speed without load 4300±100rpm —
Compress force 0.45Mpa/800rpm —
Cylinder Sleeve I.D. 58.000-58.020 58.105
Piston
Skirt O.D 57.960-57.980 57.85
Pin bore I.D. 13.002-13.008 13.05
Piston pin O.D 12.994-13.000 12.95
Piston ring
1st ring
Height h 0.97-0.99 0.87
Ring side clearance 0.02-0.06 0.15
Ring end clearance 0.15-0.25 1.0
Width t 1.95-2.15 1.75
2nd ring
Height h 1.17-1.19 1.07
Ring side clearance 0.02-0.06 0.15
Ring end clearance 0.15-0.25 1.0
Width t 2.4-2.6 2.2
Oil ring
Height h 1.85-1.98 1.75
Ring side clearance 0.03-0.18 0.24
Ring end clearance 0.20-0.50 1.0
Width t 2.3-2.7 2.2
Connecting
rod
Small end I.D 13.006—13.017 13.08
Big end I.D 24.020—24.033 24.09
Crankshaft Crank pin O.D. 23.967-23.980 23.90
Valves
Valve
clearance
IN 0.10±0.02 ---
EX 0.15±0.02 ---
Stem O.D.
IN 3.965—3.980 3.90
EX 3.955—3.970 3.90
Serial number