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/
cm2
26kgf/
cm2
(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.
