Crank Angle with
Intake Valve
Opening as 1mm
(°)
400 369
Crank Angle at
1mm before Intake
Valve Closing (°)
610 569
Crank Angle with
Exhaust Valve
Opening as 1mm
(°)
200 140
17
Crank Angle at
1mm before
Exhaust Valve
Closing (°)
390 350
18
Ignition Advance
Angle (°CA)
12±5 12±5
19
Cylinder
Compression
Pressure (MPa)
(200~300r/min)
1.00～1.35
20
Overall Dimension
(length×width×height)
613×507×734
21
Electronic fuel
injection system
UAES
II. Major Maintenance Parameters of Engine
No. Name Dimension and tolerance Fit clearance
1 473 engine cylinder hole φ73.005±0.005
2 Piston skirt of 473 engine φ72.965±0.009
0.04
Main bearing saddle width of cylinder 19.5
0
-0.05
Thickness of thrust plate 2.4
+0.05
0
3
Crankshaft main journal 24.5
+0.015
-0.030
0.07~0.265
