Kia Rio: Inspection
Cylinder Head
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1. |
Inspect for flatness.
Using a precision straight edge and feeler gauge, measure the
surface the contacting the cylinder block and the manifolds for warpage.
Flatness of cylinder head gasket
surface
Standard :
Less than 0.05mm (0.0020in) for total area
Less than 0.02mm (0.0008in) for a section of 100mm (3.9370in)
X 100mm (3.9370in)
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2. |
Inspect for cracks.
Check the combustion chamber, intake ports, exhaust ports and
cylinder block surface for cracks. If cracked, replace the cylinder
head.
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Valve And Valve Spring
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1. |
Inspect the valve stems and valve guides.
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(1) |
Using a caliper gauge, measure the inner diameter of valve
guide.
Valve guide inner diameter
:
5.500 ~ 5.512mm (0.2165 ~ 0.2170in)
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(2) |
Using a micrometer, measure the outer diameter of valve
stem.
Valve stem outer diameter
Intake : 5.465 ~ 5.480mm (0.2152 ~ 0.2157in)
Exhaust : 5.458 ~ 5.470mm (0.2149 ~ 0.2154in)
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(3) |
Subtract the valve stem outer diameter measurement from
the valve guide inner diameter measurement.
Valve stem- to-guide
clearance
Intake : 0.020 ~ 0.047mm (0.0008 ~ 0.0019in)
Exhaust : 0.030 ~ 0.054mm (0.0012 ~ 0.0021in)
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If the clearance is greater than specification, replace
the valve or the cylinder head.
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2. |
Inspect the valves.
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(1) |
Check the valve is ground to the correct valve face angle.
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(2) |
Check that the surface of valve for wear.
If the valve face is worn, replace the valve.
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(3) |
Check the valve head margin thickness.
If the margin thickness is less than minimum, replace
the valve.
Margin
Standard
Intake : 1.10mm (0.0433in)
Exhaust : 1.26mm (0.0496in)
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(4) |
Check the length of valve.
Valve length
Standard
Intake : 93.15mm (3.6673 in)
Exhaust : 92.60mm (3.6457 in)
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(5) |
Check the surface of valve stem tip for wear.
If the valve stem tip is worn, replace the valve.
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3. |
Inspect the valve seats.
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(1) |
Check the valve seat for evidence of overheating and improper
contact with the valve face. If the valve seat is worn, replace
the cylinder head.
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(2) |
Check the valve guide for wear. If the valve guide is
worn, replace the cylinder head.
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4. |
Inspect the valve springs.
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(1) |
Using a steel square, measure the out-of-square of valve
spring.
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(2) |
Using a vernier calipers, measure the free length of valve
spring.
Valve spring
Standard
Free height : 45.1mm (1.7756in)
Out of square : Less than 1.5°
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Identify MLA(Mechanical lash adjuster), valves, valve springs
as they are removed so that each item can be reinstalled i ...
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Thoroughly clean all parts to be assembled.
•
...
See also:
Trouble Symptom Charts
Trouble Symptom 1
Trouble Symptom 2
Trouble symptom
Probable cause
Remedy
The set vehicle speed varies greatly upward or downward
"Surgin ...
Components Location
1. Battery sensor
2. Brake Booster Vacuum Pressure Sensor (BBVPS)
3. AGM battery
4. DC/ DC Converter (LDC)
5. ISG OFF Switch
6. Alternator
7. Starter
8. Brake s ...
Battery Caution Label Description
Warning / Caution Label (Cont'd)
A.
Keep lighted cigarettes and all other flames or sparks away from the
battery.
B.
Wear eye protection when charg ...
Disassembly
Reassembly