Great Wall hover, Руководство по обслуживанию

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Engine
For the structure and main technical parameter of engine see Table 2.
Table 2 Structure and main technical parameter of engine
Serial No. Item Specification and parameter
1 model 4G64S4M
2 style
4-cylinder, straight-line, water-cooling, single top
cam shaft, 4-stroke engine
3 Fuel oil supply method Multi-point fuel oil injection(MPI)
4 Measuring method of inlet capacity Speed compact style
5 Combustion room style Single-slope roof
6 Cylinder diameter
×
stroke(mm) 86.5
×
100
7 Total displacement (L) 2.351
8 Compression ratio 9.5:1
9 Max. power and corresponding speed (kW/r/min) 93/5250
10 Max. torque and corresponding speed (N
·
m/rpm) 190/2500
11 Min. fuel consumption (g/kW
·
h)
≤
254
12 Idle stable speed(r/min) 750
±
30
13 Idle-speed control Electronic closed loop control
14 Mean piston speed(m/s) 17.5
15 Mean effective pressure (kPa) 1036
16 Cylinder compression pressure: in 250r/min (kPa) 1320
17 Ignition sequence and control
1-3-4-2; without distributor block, electronic
controlled direct ignition
18 Spark plug gap(mm) 1.0
～
1.1
19 Spark plug model
BKR5E-11 or K16PR-U11 or RC10YC4
BKR6E-11 or K20PR-U11 or RC8
20 Manufacturer of spark plug NGK or DENSO or Xiang huo ju
21 Valve clearance(mm) 0(hydraulic column )
22
Port timing: Opened inlet/closed inlet
Opened outlet/closed outlet
18
°
before upper stop point/ 53
°
after lower stop
point
50
°
before lower stop point/ 18
°
after upper stop
point
23 Lubrication method Combined method of pressure and splash
24
Pressure of engine oil of main oil channel, in idle
speed of 3000rpm (kPa)
(
≥
78.5)/(245-490)
25 Max. engine oil temperature(
℃
) 130
26 Consumption ratio of engine oil(g/kW
·
h) 2