Hyundai i-30: Engine Mechanical System / Repair procedures
Compression Pressure Inspection |
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If there is lack of power, excessive oil consumption or poor
fuel economy, measure te compression pressure.
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1. |
Warm up and stop engine.
Allow the engine to warm up to normal operating temperature.
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2. |
Remove the engine cover.
(Refer to Engine and Transaxle Assembly - "Engine Cover")
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3. |
Remove the ignition coils.
(Refer to Engine Electrical System - "Ignition Coil")
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4. |
Remove the spark plugs.
(Refer to Engine Electrical System - "Spark Plug")
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5. |
Check the cylinder compression pressure.
(1) |
Insert a compression gauge into the spark plug hole.
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(3) |
While cranking the engine, measure the compression pressure.
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Always use a fully charged battery to obtain
engine speed of 200 rpm or more.
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(4) |
Repeat step (1) through (3) for each cylinder.
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This measurement must be done in as short a
time as possible.
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Compression pressure :
1,128 kPa (11.5 kg/cm², 164.0 psi)
Minimum pressure :
981 kPa (10.0 kg/cm², 142.0 psi)
Difference between each cylinder :
98kPa (1.0kg/cm2, 14psi) or less
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(5) |
If the cylinder compression in 1 or more cylinders is low, pour
a small amount of engine oil into the cylinder through the spark
plug hole and repeat step (1) through (3) for cylinders with
low compression.
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If adding oil helps the compression, it is likely that
the piston rings and/or cylinder bore are worn or damaged.
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If pressure stays low, a valve may be sticking or seating
is improper, or there may be leakage past the gasket.
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6. |
Reinstall the spark plugs.
Tightening torque :
14.7 - 24.5 N.m (1.5 - 2.5 kgf.m, 10.8 - 18.1 lb-ft)
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7. |
Connect the injector connectors.
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8. |
Install the ignition coil.
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)
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9. |
Connect the ignition coil connectors.
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10. |
Some DTC's may exist after the inspection test and may need to be manually
cleard with diagnostic tool.
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Specifications
Description
Specification
Limit
General
Type
In-line, DOHC
Number of cylinders
4
Bore
71...
Troubleshooting
Symptom
Suspect area
Remedy
Engine misfire with abnormal internal lower engine noises...
Other information:
Repair procedures
Replacement
[Rear door side weatherstrip]
1.
Loosen the rear door checker (B) mounting bolt.
Tightening torque :
21.6 - 32.4 N.m (2.2 - 3.3 kgf...
Specifications
Specification
[LHD]
Brake oil : DOT 3 or DOT 4
Reservoir capacity (cc)
TOTAL
A+B+C+D+E+F
500 ± 20
MAX LEVEL
A+B+C+D+E
475 ± 20
MIN LEVEL
B+C+D+E
200 ± 20
ON LEVEL
C+D+E
170 ± 10
PARTIAL LEVEL
D
Pri : 53 ± 50
D
Sec : 51 ± 5
CLUTCH LEVEL
F
26 ± 5
[RHD]
Reservoir capacity (cc)
TOTAL
A+B+C+D+E+F
456...
Categories
Opening the bonnet
1. Park the vehicle and set the parking
brake.
2. Pull the release lever to unlatch
the bonnet. The bonnet should
pop open slightly.
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