ENGINE
A. ENGINE BODY
a. Cylinder Head
b. Valves
c. Valve Timing
d. Cylinder Bore
3.2 SERVICING SPECIFICAT I O N S
Item Factory Specification Allowable Limit
0.05mm/100mm
Cylinder Head Surface Flatness
0.05in./100in.
0.75 to 0.9mm
Top Clearance -
0.0295 to 0.0354in.
Cylinder Head Gasket Thickness Free 1.3 to 0.9mm
0.0512 to 0.0591in.
-
Tightened 1.15 to 1.25mm
0.0453 to 0.0492in.
3.24 to 3.73 Mpa 2.55MPa
Compression Pressure
33 to 38kgf/cm
2
26kgf/cm
2
(When cranking with starting motor)
469 to 540 psi 370psi
Item Factory Specification Allowable Limit
Valve Clearance(Cold) IN. 0.25mm 0.0098in.
EX. 0.30mm 0.0118in.
1.047rad. 60
o
Valve Seat Angle IN.
0.785rad. 45
o
Valve Face Angle IN. 1.047rad. 60
o
EX. 0.785rad. 45
o
0.2 to 0.25mm
Valve Recessing
0.0078 to 0.0197in.
Clearance Between Valve Stem and Valve Guide 0.040 to 0.070mm 0.10mm
0.00157 to 0.00276in. 0.0039in.
Valve Stem O.D 7.960 to 7.975mm -
0.31339 to 0.31398in. -
Valve Stem I.D 8.015 to 8.030mm -
0.31555 to 0.31614in. -
Item Factory Specification Allowable Limit
Inlet Valve Open 0.140rad 8
o
before T.D.C
Close 0.611rad 45
o
after B.D.C
Exhaust Valve Open 0.785rad 45
o
before B.D.C
Close 0.140rad 8
o
after T.D.C
ø 87.000~87.022mm
3A165D
Cylinder Bore Inner ø 3.4252~3.4261in. 0.15mm
Diameter ø 83.000~83.002mm 0.0059in
4A220B
ø 3.2677~3.2686in.
* Variance of compression pressure among cylinders should be 10% or less.
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