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HOMESERVICE MANUALSHONDA2002CIVIC SIREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 8 (OVERHAUL - 1.7L ENGINE)ENGINE COMPRESSION INSPECTION
2002 Honda Civic Si

Engine Compression Inspection

2002 Honda Civic SiSECTION Engine Compression Inspection
WARNING: This page is about a different variant/trim than selected.
  1. Warm up the engine to normal operating temperature (cooling fan comes on).
  2. Turn the ignition switch OFF.
  3. Remove the air cleaner housing (see step 6 on Cylinder Head Removal  ).
  4. Disconnect all four injector connectors.
  5. Remove the four ignition coils (see IGNITION COIL REMOVAL/INSTALLATION ).
  6. Remove the four spark plugs.
  7. Attach the compression gauge to the spark plug hole.
    Fig 1: Attaching Compression Gauge To Spark Plug Hole
    G01401502Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Connect a tachometer.
  9. Open the throttle fully, then crank the engine with the starter motor and measure the compression.
    1. Compression Pressure:  Above 930 kPa (9.5 kgf/cm2 , 135 psi)
  10. Measure the compression on the remaining cylinders.
    1. Maximum variation:  Within 200 kPa (2.0 kgf/cm2 , 28 psi)
  11. If the compression is not within specifications, check the following items, then remeasure the compression.
    • Damaged or worn valves and seats
    • Damaged cylinder head gasket
    • Damaged or worn piston rings
    • Damaged or worn piston and cylinder bore
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.