Haima M3. Service Manual - part 1

 Table 

of 

Contents 

 

General Catalogue  

 

Volume I 

 

Chapter I 

Engine Body ····················································································· 1A-1 

Chapter 2 

Electronic Fuel Injection Control System ··················································· 1B-1 

Chapter 3 

Fuel System ······················································································ 1C-1 

Chapter 4 

Intake and Exhaust System ···································································· 1D-1 

Chapter 5 

Cooling System·················································································· 1E-1 

Chapter 6 

Engine Accessory-Belt ········································································· 1F-1 

Chapter 7 

Engine Suspension ·············································································· 1G-1 

Chapter 8 

MF515L Transmission ········································································· 1H-1 

Chapter 9 

Gearshift Mechanism ··········································································· 1J-1 

 
 
 

Volume II 

Chapter 10 

Clutch System ··················································································· 2A-1 

Chapter 11 

List of tires and drive shafts ··································································· 2B-1 

Chapter 12 

Wheels and tires ················································································· 2C-1 

Chapter 13 

Suspension system ·············································································· 2D-1 

Chapter 14 

Steering system·················································································· 2E-1 

Chapter 15 

Brake system····················································································· 2F-1 

 
 

Volume III 

 

Chapter 16 

A/C System ······················································································ 3A-1 

Chapter 17 

Airbags and Restraint System ································································· 3B-1 

Chapter 18 

Body and Accessories ·········································································· 3C-1 

Chapter 19 

Electrical System················································································ 3D-1 

 
 

 Table 

of 

Contents 

 

Chapter 1  Engine Body   

 

Table of Contents   

 

Overview ...........................................................................................................................................1A-0 

Subject Scope ............................................................................................................................1A-0 
Overhaul Steps: .........................................................................................................................1A-0 
Symbol ......................................................................................................................................1A-0 
Prompt signals ...........................................................................................................................1A-0 

Technical Parameters.........................................................................................................................1A-1 

Technical Parameters of Complete Equipment .........................................................................1A-1 
Technical Parameters of Maintenance.......................................................................................1A-2 
Tightening torque ......................................................................................................................1A-7 

Special tools ......................................................................................................................................1A-9 
Inspection and Maintenance of Complete Vehicle ..........................................................................1A-10 

Inspection of Compression Pressure .......................................................................................1A-10 
Inspection of the Engine Oil....................................................................................................1A-10 
Inspection of Oil Pressure .......................................................................................................1A-11 
Replacement of Engine Oil .....................................................................................................1A-11 
Replacement of Oil Filter ........................................................................................................1A-11 
Others ......................................................................................................................................1A-12 

Application of Engine Maintenance Platform.................................................................................1A-12 

Mount the Engine onto Maintenance Platform........................................................................1A-12 
Dismantle the Engine from Maintenance Platform .................................................................1A-12 

Power Generator and Starter ...........................................................................................................1A-13 

Power Generator’s Dismantling/Mounting .............................................................................1A-13 
Explanations on Inspection of Power Generator Belt .............................................................1A-13 
Explanations on adjustment to tension of power generator and air conditioning drive belts ..1A-13 
Explanations on inspection of power generator ......................................................................1A-13 
Starter Dismantling/Mounting.................................................................................................1A-13 
Explanations on inspection of starter ......................................................................................1A-14 

Ignition, Control System .................................................................................................................1A-14 

Ignition Coil and PCV Valve Dismantling/Mounting .............................................................1A-14 
Spark Plug Dismantling/Mounting..........................................................................................1A-14 
PCV Valve Dismantling /Inspection........................................................................................1A-14 
Control System Parts Dismantling/Mounting .........................................................................1A-15 
Crankshaft position sensor’s dismantling/mounting explanations ..........................................1A-15 
Explanations to inspection of crankshaft position sensor........................................................1A-15 
Explanations on water temperature sensor dismantling/mounting..........................................1A-16 

Intake and Exhaust System..............................................................................................................1A-17 

Intake and Exhaust System Dismantling/Mounting ................................................................1A-17 

 Table 

of 

Contents 

 

Explanations on intake manifold dismantling .........................................................................1A-18 
Explanations on the intake manifold seal ring mounting ........................................................1A-18 
Explanations on the throttle body seal ring mounting.............................................................1A-18 
Explanations on the exhaust manifold dismantling.................................................................1A-18 

Timing System ................................................................................................................................1A-18 

Timing system dismantling/mounting .....................................................................................1A-18 
Explanations on timing chain tensioner assembly dismantling...............................................1A-18 
Explanations on crankshaft pulley dismantling.......................................................................1A-19 
Explanations on cylinder head hood dismantling....................................................................1A-19 
Explanations on the timing chain dismantling ........................................................................1A-19 
Explanations on the timing chain’s tensioner assembly mounting..........................................1A-19 
Explanations on the tensioner arm assembly mounting ..........................................................1A-19 
Explanations on timing chain mounting..................................................................................1A-20 
Explanations on the cylinder head hood mounting .................................................................1A-20 
Explanations on the crankshaft pulley mounting ....................................................................1A-20 
Explanations on water pump pulley mounting ........................................................................1A-21 

Lubricating System .........................................................................................................................1A-21 

Oil Sump Dismantling/Mounting............................................................................................1A-21 
Explanations on the oil sump dismantling...............................................................................1A-21 
Explanations on the oil sump mounting ..................................................................................1A-21 
Oil Pump and Timing Chain Case Assembly Dismantling/Mounting.....................................1A-21 
Explanations on oil pump’s oil seal dismantling .....................................................................1A-22 
Explanations on oil pump’s oil seal mounting ........................................................................1A-22 
Explanations on the oil filter mounting ...................................................................................1A-22 
Explanations on oil pump disassembling/ mounting...............................................................1A-23 
Inspection of Oil Pump............................................................................................................1A-23 
Explanations on inspection of pressure spring ........................................................................1A-23 

Cooling System ...............................................................................................................................1A-24 

Thermostat Dismantling/Mounting .........................................................................................1A-24 
Explanations on thermostat inspection and mounting.............................................................1A-24 
Cooling water pipeline dismantling/mounting ........................................................................1A-24 
Explanations on heater water pipe /O-ring mounting..............................................................1A-24 
Water Pump Dismantling/Mounting........................................................................................1A-24 

Cylinder Cover and Valve Mechanism............................................................................................1A-25 

Cylinder Head Mechanism Dismantling/ Mounting ...............................................................1A-26 
Explanations on intake VVT dismantling ...............................................................................1A-26 
Explanations on camshaft dismantling....................................................................................1A-26 
Explanations on cylinder head dismantling.............................................................................1A-26 
Explanations on the cylinder head mounting ..........................................................................1A-26 
Explanations on the camshaft mounting..................................................................................1A-27 
Explanations on the VVT mounting........................................................................................1A-27 
Valve Mechanism Dismantling/ Mounting..............................................................................1A-28 
Explanations on inspection of valve clearance........................................................................1A-28 
Explanations on the valve clearance’s adjustment ..................................................................1A-29 

 Table 

of 

Contents 

 

Cylinder Head Inspection /Repair ...........................................................................................1A-29 
Inspection of Valve and Valve Guide ......................................................................................1A-30 
Explanations on inspection of valve spring.............................................................................1A-31 
Explanations on the inspection of camshaft ............................................................................1A-31 
Explanations on inspection of tappet hole and tappet .............................................................1A-33 

Flywheel, clutch ..............................................................................................................................1A-34 

Flywheel and Clutch Dismantling/Mounting ..........................................................................1A-34 
Explanations on Clutch Pressure Plate/Friction Disc Dismantling .........................................1A-35 
Explanations on flywheel dismantling ....................................................................................1A-35 
Explanations on Rear Oil Seal Dismantling/Mounting ...........................................................1A-35 
Explanations on the crankshaft’s back cover mounting ..........................................................1A-35 
Explanations on the flywheel mounting /inspection................................................................1A-35 
Explanations on the clutch friction disc inspection /mounting................................................1A-36 
Explanations on the clutch pressure plate inspection/mounting..............................................1A-36 

Cylinder body, Crank Connecting Rod Mechanism........................................................................1A-37 

Cylinder Body, Crank Connecting Rod Mechanism Dismantling/Mounting..........................1A-37 
Explanations on connecting rod cover dismantling.................................................................1A-37 
Explanations on piston pin dismantling ..................................................................................1A-37 
Explanations on main bearing cover dismantling....................................................................1A-38 
Explanations on the crankshaft dismantling............................................................................1A-38 
Explanations on the main bearing cover mounting .................................................................1A-38 
Explanations on the piston pin mounting ................................................................................1A-39 
Explanations on the piston ring mounting...............................................................................1A-40 
Explanations on piston connecting rod assembly mounting....................................................1A-40 
Explanations on the connecting rod cover mounting ..............................................................1A-40 
Cylinder Body Inspection /Repair...........................................................................................1A-41 
Piston, Piston Ring, and Piston Pin Inspection........................................................................1A-41 
Connecting Rod Inspection .....................................................................................................1A-42 
Inspection of Piston Connecting Rod Assembly .....................................................................1A-43 
Crankshaft Inspection /Repair .................................................................................................1A-43 

 

 

 

 

 

 

 

 

 

Engine block 1A-0 

 

Overview  

Subject Scope   

  This manual comprises procedures on engine 

maintenance, and specific procedures fall into 
5 basic operation steps:   

I: dismantling/mounting; II disassembling 
/mounting; III: resetting; IV inspection; V 
adjustment.  

  Simple operation may be completed by 

inspecting the engine appearance, such as 
dismantling/mounting of periphery parts, 
parts cleaning, and appearance inspection etc.   

Overhaul Steps: 

1.  Prior to most overhaul work, illustrative 

pictures shall be observed because they will 
help distinguish parts & components, 
illustrate the parts fastening way, and the way 
of inspecting parts appearance. In addition, 
illustration explanations are attached to 
dismantling/mounting procedures in need of 
systematic demonstration.   

2.  On illustrations there are symbols of wearing 

parts, tightening torque, lubricating oil, and 
sealant, and also corresponding explanations 
and marks are made to special tools or 
equipments for dismantling or mounting.   

3.  Corresponding numbers are marked on 

pictures for the operation sequence and parts’ 
major operation process. In general, 
information of this kind serves as key and 
core content of the diagnosis procedure. Due 
to this, please refer to these materials during 
the overhauling process.   

Symbol  

Four kinds of symbols are used in this manual to 
indicate application of lubricating oil, sealant, and 
special tools etc., and they imply occasions where 
foresaid materials shall be applied during the 
maintenance period.   

Symbol Connotation

Remark 

 

Inject 

lubricating oil

Inject new engine oil

  Inject sealant

Inject appropriate 

sealant 

 

Replace parts

wearing parts like 
O-ring and gasket 

 

Use special 

Appropriate special 

tools tools 

or 

equipments

Prompt signals   

In this manual there are such signals as 
“Warning”, “Caution”, “Attention”, 
“Explanation”, and “Limit”.   

Warning 

  Warning is used to prompt that personal 

injury may be caused due to negligence. 

Caution 

  Caution is used to prompt that engine damage 

may be caused due to negligence.   

Notice 

  Notice is used to provide additional 

information for completion of given 
procedures. 

Explanation  

  Explanation is used to prompt the permissible 

range for inspection or adjustment.   

Limit  

Limit is used to prompt the upper and lower limit 
for the inspection or adjustment.   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Engine block 1A-1 

 

Technical Parameters   

Technical Parameters of Complete Equipment   

 

Item Parameter Remark 

Model GN15-VF 

 

Cylinder quantity and 

arrangement  

In-line 4-cylinder 

 

Combustion chamber   

Roof shape 

 

Ignition sequence   

1-3-4-2 

By cylinder number   

Rotation direction   

Counterclockwise 

From back to front (flywheel side 
taken as the back end) 

Valve timing mechanism 

dual overhead camshaft, timing chain 

drive (silent chain), intake VVT 

 

Valve quantity   

16 

 

Displacement (cc) 

1497 

 

Bore× stroke (mm) 

74.8×85.2 

 

Compression ratio 

10 

 

ON -14～26(BTDC)  

Intake 

OFF 66～26(ABDC)  

ON 39(BBDC) 

 

Valve 

timing 

(°) 

Exhaust 

OFF 5(ATDC) 

 

Max. power(kW/rpm) 

77/6000 

Net power   

Max. torque(N·m/rpm) 

140/4000 

 

Air conditioning idle speed:800±50   

Idle speed (rpm) 

Target idle speed:750±50 

 

Ignition advance angle(°) 

3～10 Idle 

state 

 

Starting mode   

Electrical starting 

 

Cooling mode 

Water cooling forced circulation 

 

Lubricating mode 

Pressure, Split, Complex 

 

Overall dimension (mm) 

573.2×615.0×606.3 

 

Net weight (kg) 

94.8 

 

 

Engine block 1A-2 

 

 

Technical Parameters of Maintenance   

Item Parameter 

Cylinder head 

Standard  

112.9～113.1 

Height (mm) 

Max. grinding   

0.2 

Deformation at cylinder gasket’s abutment 
surface (mm) 

Max.  

0.03 

Max. 0.15 

Deformation at manifold’s abutment 
surface (mm) 

Max. grinding 

0.20 

Intake 0.18～0.26 

valve clearance(engine in cold 
condition)(mm) 

Exhaust 0.26～0.34 

Valve and valve guide 

Standard 1.35 

Intake 

Min. 0.85 

Standard 1.85 

Width of valve seal tape 
(mm) 

Exhaust 

Min. 1.35 

Standard 89.31～89.91 

Intake 

Min. 89.11 

Standard 90.63～91.23 

Valve length (mm) 

Exhaust 

Min. 90.43 

Standard 4.965～4.980 

Intake 

Min. 4.915 

Standard 4.955～4.970 

Valve stem 
diameter(mm) 

Exhaust 

Min. 4.905 

valve guide’s inside diameter (mm) 

Standard 

5.0～5.012 

Intake 12.7～13.3 

valve guide’s protrusion height (mm) 

Exhaust 12.7～13.3 

Valve seat   

Width of valve seat’s contact surface (mm) 

1.1～1.5 

Intake 43.5～44 

Angle of valve seat (°) 

Exhaust 43.5～44 

Intake 30.4 

Valve seat sinking (valve protrusion 
height)(mm) 

Exhaust 34.6 

Valve spring 

Intake H1: 

33.4mm 

142.2～161.8{14.51～16.51kgf} 

valve spring height H 
pressure (N{kgf}) 

Exhaust H2: 

24.9mm 

293.4～324.4{29.94～33.10kgf} 

Verticality(mm) 1.50mm 

Valve oil seal 

 

Engine block 1A-3 

 

Intake 15.7～16.3 

Depth L(mm) 

Exhaust 15.7～16.3 

Tappet 

Tappet hole’s diameter(mm) 

Standard 

31.000～31.025 

Tappet diameter(mm) 

Standard 

30.964～30.980 

Standard 

0.020～0.061 

Clearance between tappet and tappet hole (mm) 

Max. 0.180 

Camshaft 

Camshaft’s radial run-out(mm) Max. 

0.03 

Standard 44.71 

Intake 

Min. 44.51 

Standard 44.28 

Cam’s protrusion height 
(mm) 

Exhaust  

Min. 43.58 

Standard 

25.945～25.960 

Journal diameter(mm) 

Min. 25.915 

Journal clearance(mm) 

Standard 

0.040～0.076 

Standard 

0.08～0.20 

End gap(mm) 

Max. 0.21 

Cylinder body   

Standard 205 

Height (division surface between upper surface 

and main cover)(mm) 

Max. grinding 

0.20 

Deformation of upper surface (mm) 

Standard 

0.1 

Cylinder bore’s inside diameter   

[measure inside diameter at the place 37mm 
below the top surface]    (mm) 

Standard 

74.8～74.815 

Wearing limit (mm) 

0.135 

Piston diameter(mm) 

[Measure the piston diameter at the 
place19.38mm below the lower rim of oil 
control ring slot along the vertical direction of 
the piston pin hole’s axial line.]   

Standard 

74.78～74.79 

Standard 

0.010～0.035 

Clearance between piston and cylinder bore 
(mm) 

Max. 0.10 

Piston ring 

Top ring   

Standard 

0.030～0.070 

Second Ring   

Standard 

0.020～0.060 

Oil Ring   

Standard 

0.040～0.120 

Top ring / Second 
Ring 

Max. 0.15 

Clearance between piston 
ring and ring slot (mm) 

Oil Ring   

Max. 

0.15 

 

Engine block 1A-4 

 

Top ring 

0.15～0.30 

Second Ring 

0.20～0.40 

Oil Ring 

0.10～0.40 

Opening clearance [measure inside 
cylinder](mm) 

Max. 1.0 

Piston pin   

Piston pin’s diameter(mm) Standard 

18.001～18.005 

Piston pin hole’s inside diameter (mm) 

Standard 

18.010～18.014 

Clearance between connecting rod’s small end 
hole and piston pin (mm) 

Standard 

-0.031～-0.016 

Clearance between piston pin hole and piston 
pin (mm) 

Standard 

0.005～0.013 

Connecting rod 

Length [center to center](mm) 

Standard 

135.3～135.4 

Inside diameter of connecting rod’s small end 

(mm) 

Standard 

17.974～17.985 

Standard 

0.100～0.350 

Connecting rod’s end gap(mm) 

Max. 0.40 

Connecting rod bearing   

Connecting rod bush size (mm) 

Standard 

1.485～1.496 

Standard 

0.014～0.058mm 

Connecting rod bearing clearance (mm) 

Max. 0.10 

Crankshaft 

Crankshaft radial run-out(mm) 

0.03 

Main journal diameter(mm) Standard 

46.004～46.029 

Standard 

0.014～0.034 

Main journal clearance (mm) 

Max. 0.1 

Main bearing bush size (mm) 

Standard 

1.971～1.996 

Crank pin diameter(mm) 

Standard 

39.980～40.000 

Thrust bearing size (mm) 

Standard 

3.205～3.255 

Standard 

0.09～0.273mm 

Crankshaft end gap(mm) 

Max. 0.30 

Inspection to complete vehicle   

Standard value 

1170{12.0}[300] 

Minimum limit 

980{10.0}[300] 

Compression pressure   

kPa{kgf/cm2}[rpm] 

Max. limit of 
pressure difference 
between cylinders 

100{1.0} 

Oil pressure (kPa{kfg/cm2}[rpm]) 

400～588{4.1～6.0}[2500] 

Oil adding volume L 

Oil replacement 

3.6 

 

Engine block 1A-5 

 

Oil and oil filter 

replacement  

3.8 

Oil grade   

API engine oil grade higher than SL   

Higher than –25 ℃ SAE 

10W–30 

Oil viscosity level   

-30 ℃～37 ℃ 

SAE 5W–30 

Starter  

Voltage (V) 

11 

Zero-load test   

Current (A) 

＜

95 

Timing chain disassembling part   

Automatic tensioner push rod’s extension strength (mm) 

3 

Crankshaft rotating speed sensor 

Clearance between signal wheel and sensor (mm) 

0.5～1.5 

Thermostat 

Opening temperature ( )

℃

 

80～84 

Full-opening temperature ( )

℃

 95 

Full-opening stroke (mm) 

Min. 

8.5 

Clutch pressure plate 

Diaphragn spring’s wearing depth (mm) 

Max. 

0.6 

Diaphragn spring’s radial circle run-out (mm) 

Max. 

0.6 

Pressure plate’s flatness (mm) 

0.05 

Clutch friction disc 

Thickness of protrusion rivet (mm) 

Min. 

0.3 

End-on circle run-out(mm) 

Max. 

0.7 

Flywheel 

End-on circle run-out(mm) 

Max. 

0.13 

Oil pump 

Standard 0.06～0.20 

Clearance between inner rotor’s prong 
and outer rotor (mm) 

Max. 0.22 

Standard 0.250～0.325 

Clearance between outer rotor and pump 

body (mm) 

Max. 0.35 

Standard 0.030～0.090 

Backlash (mm) 

Max. 0.14 

Compression spring’s length (mm)[pressure:97.7 ～
107.4N{9.96～10.96kgf}] 

33.50 

Front-end oil seal’s driving distance (mm)[from oil pump
body’s rim] 

0～0.5  

 

Engine block 1A-6 

 

Rear oil seal 

Rear oil seal’s driving distance (mm)[from crankshaft back 
cover’s rim] 

0～0.5 

Plastic fixing bolt’s length   

Cylinder head bolt(mm) 

Standard 

136.8～144.2 

Standard 74.15～74.85 

Main bearing cover bolt(mm) 

Max. 75.3 

 

 

 

Engine block 1A-7 

 

 

Tightening torque 

Torque value   

Mounting place   

N•m kgf•m 

Remark 

Power generator   

Bracket 45.1 

4.6 

 

Adjusting arm   

45.1 

4.6 

 

Adjusting slider   

21.6 

2.2 

 

Power generator pivot’s bolt and nut   

45.1 

4.6 

 

Ignition, control system   

Ignition 

coil 

 

8.8 0.9  

Spark plug   

25 

2.6 

 

Fuel rail 

21.6 

2.2 

 

Camshaft position sensor 

8.8 

0.9 

 

Water temperature sensor 

15 

1.53 

 

Knock sensor 

21.6 

2.2 

 

Knock sensor bracket   

16.8 

1.7 

 

Crankshaft 

position 

sensor 

8.8 0.9  

OCV 

valve 

8.8 0.9  

Intake and exhaust system   

Throttle 

body 

 

8.8 0.9  

Intake manifold   

21.6 

2.2 

 

Intake manifold bracket (manifold side)  21.6 

2.2 

 

Exhaust manifold   

21.6 

2.2 

 

Exhaust manifold bracket (cylinder 
body side) 

21.6 2.2   

Exhaust manifold bracket (manifold 
side) 

45.1 4.6   

Exhaust manifold heat shield 

8.8 

0.9 

 

Lubricating system   

Oil switch   

14.7 

1.5 

 

Oil 

filter 

 

14.0 1.43  

Oil filter adapter   

21.6 

2.2 

 

Oil 

filter 

8.8 0.9  

Oil 

sump 

 

8.8 0.9  

Cylinder body, crank connecting rod mechanism   

50±2 16.7 

Crankshaft pulley 

60±2° 

First set the pretension torque and 
then tighten the angle. 

Flywheel 100 

10.3 

 

 

Engine block 1A-8 

 

Transmission baffle plate 

8.8 

0.9 

6.9～9.8 

Clutch pressure plate 

18.6 

1.9 

18.6～25.5 

Crankshaft’s rear cover   

8.8 

0.9 

 

35±2.5 3.5 

Main bearing cover 

Tightening 60°(0～ -4°)

First set the pretension torque and 
then tighten the angle. Pay attention 
to the bolt’s length, which has limit 
value (see corresponding part) 

15±2N·m 

1.32～
1.74kgf·m 

Connecting rod cover   

90°～94° 

First set the pretension torque for two 
times, and then tighten the angle. 
Pay attention to the bolt’s length, 
which has limit value (see 
corresponding part) 

Cylinder head, valve train and others 

24.5 2.5 

Cylinder head 

Tighten 90°+ 90°(0～4°)

First set the pretension torque, and 
tighten the angle two times. Pay 
attention to the bolt’s length, which 
has limit value (see corresponding 
part) 

Camshaft’s front cover   

20 

2.04 

 

Camshaft cover 

11 

1.12 

 

Cylinder head hood   

8.35 

0.85 

 

10 1.02 

See 

corresponding 

part 

Oil pump and timing chain case 
assembly  

39.5 4.03 See 

corresponding 

part 

Timing chain guide rail   

10 

1.02 

 

Tensioner arm 

23.5 

2.4 

 

Timing 

chain 

tensioner 

 

9.8 1.0  

VVT fixing bolt 

60 

6.12 

 

Front and rear hook 

18.4 

1.88 

 

Cooling system   

9.8 1.0 See 

corresponding 

part 

Water pump 

45.1 4.6  See 

corresponding 

part 

Water pump pulley 

9.35 

0.95 

 

Water inlet pipe seat   

9.35 

0.95 

 

Heater water pipe assembly   

9.35 

0.95 

 

 

 

 

 

Engine block 1A-9 

 

Special tools 

Oil pressure gauge   

 

Oil seal erector 

Valve spring ejector 

 

Piston pin assembling tool set   

 

Belt tensiometer 

 

Gear ring stop device 

 

Valve oil seal ejector 

 

Oil filter sleeve   

Valve guide ejector / erector 

Valve oil seal erector 

 

Flywheel brake   

Clutch guider   

 

Oil sump ejector 

 

 

 

 

 

Engine block 1A-10 

 

Inspection and Maintenance of 
Complete Vehicle   

Inspection of Compression Pressure   

Warning 

  When the engine is running, the oil 

temperature is extremely high. Therefore, 
keep cautious during dismantling and 
mounting process since there is a danger of 
burn.  

1.  Set the vehicle into the normal pre-inspection 

state: warm up the engine to a normal running 
temperature; then stop the running and cool it 
for 10 minutes.   

2.  Dismantle the fuel pump relay (see 

corresponding complete vehicle maintenance 
manual).  

3.  Disconnect ignition coil’s wiring harness joint 

(see corresponding complete vehicle 
maintenance manual).   

4.  Dismantle Cylinder 1’s ignition coil and spark 

plug(see Ignition, Control System part).   

 

5.  Mount the gauge into Cylinder 1’s spark plug 

hole.  

6.  Floor the accelerator pedal and start the 

engine.  

7.  Record the gauge’s maximum reading.   

8.  Measure all cylinders’ compression pressures 

according to preceding method, and inspect if 
the pressure difference between cylinders is 
lower than the limit value.   

Limit value (maximum): 980 (kPa) 

Item 

Standard 

value 

Minimum 

limit 

Maximum 

pressure 

difference 

between 

cylinders

compression 

pressure 

kPa{kgf/cm 

2}[rpm] 

1170 

{12.0}

[300] 

980 

{10.0} 

[300] 

100 

{1.0 

kgf/cm2}

Note: If one cylinder or several cylinders 
encounter excessively low pressure, or pressure 
difference between cylinders goes beyond the limit 
value specified, some drops of engine oil shall be 
added for repeated operation. Repeat the 
inspection following Step5-7.   

■  If the compression pressure increases, the 
fault cause should be attributed to piston, piston 
ring, or cylinder inner surface’s wearing or 
damage, and in turn an overhaul is needed.   

■  If the adjacent cylinder encounters low 
pressure, the cylinder gasket may be damaged, or 
the cylinder head likely suffers deformation, and in 
turn an overhaul is needed.   

■  If the compression pressure is still low, the 

valve seat is burnt or in poor quality, and the 
valve’s sealing face has poor contact. Thus, an 
overhaul is needed.   

9.  Take off the gauge   

10.  Connect the ignition coil wiring   

11.  Mount the fuel pump relay 

12.  Mount the spark plug tightening torque:20～

30N·m{2.1～3.1kgf·m } 

Inspection of the Engine Oil 

1.  Park the automobile on the level ground.   

2.  Warm up the engine to a normal running 

temperature and stop the running.   

3.  Wait for 5 minutes.   

4.  Pull out the dipstick and observe the oil level 

and oil state, inspect if the oil level ranges 
between Scale F and Scale L.   

5.  Add or replace oil according to needs.   

6.  Confirm the dipstick O-ring’s installation (see 

right figure). 

7.  Insert the dipstick again.     

Compression Gauge 

 

Engine block 1A-11 

 

 

Inspection of Oil Pressure   

Warning 

  Wasted and used oil is cancer-causing 

substance, and so skin shall be cleaned with 
soap and tap water immediately after the 
work.  

1.  Dismantle the oil pressure switch.   

2.  Mount the special tools onto oil pressure 

switch’s mounting hole.   

3.  Warm up the engine to a normal running 

temperature.  

4.  Run the engine to a fixed rotating speed, and 

cast attention to the oil pressure gauge’s 
reading.  

5.  Stop the running and cool the engine.   

6.  Dismantle special tools.   

 

★ 

Note: if the pressure goes beyond the 
specified range, inspect the cause, and repair 
the engine and replace the oil according to 
needs.  

Notice 

  Oil with different viscosities and temperatures 

may vary in pressure   

Oil pressure:400 ～

 588kPa{4.1 ～

6.0kgf/cm2}[2500rpm] 

7.  Smear evenly the thread sealant (A6F011) 

onto the oil pressure switch thread (see the 
figure).  

 

 

8.  Mount the oil pressure switch. Tightening 

torque:14.7N·m{1.5kgf·m}.  

9.  Start the engine and inspect if the engine oil 

suffers leakage.   

Replacement of Engine Oil 

1.  Dismantle the oil cover and oil drain plug.   

2.  Pour the oil into appropriate vessel.   

3.  Mount the new oil drain plug. Tightening 

torque: 30～41N·m{3.1～4.2kgf·m}.  

4.  Add engine oil of specified model and volume 

into the engine.   

5.  Remount the oil cover.   

6.  Inspect the dipstick’s scale value.   

7.  Start the engine and inspect if there is 

leakage.  

8.  Inspect the engine oil level and add the oil if 

necessary (see Inspection of Engine Oil).   

Notice 

  In some occasions, actual oil volume that is 

added according to the oil scale may differ 
from the oil volume specified.   

Item 

Oil capacity (L) 

Oil replacement 

Oil and oil filter replacement 

3.8 

  Engine Oil Grade: API Engine Oil Grade: 

above SL   

Oil viscosity standard 

Oil viscosity level

Higher than–25℃ SAE10W–30 

–30℃～37℃ 

–30 

Replacement of Oil Filter   

1.  Dismantle the oil filter with special tools.   

2.  Rub and clean the new oil filter with a clean 

cloth.  

O-ring 

Oil pressure gauge

  Smearing  

Sealant is needed when the bolt is reused.