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Overhaul - 1.7L Engine: Adjustments Honda Civic VII

Mechanical 8 illustrations ~398 words

Valve Clearance Adjustment

Note. Adjust the valves only when the cylinder head temperature is less than 100°F (38°C).

Scheme 1

Scheme 1: Valve Clearance Adjustment
Scheme 1: Valve Clearance Adjustment

Scheme 2

Scheme 2
Scheme 2

Scheme 3

Scheme 3
Scheme 3

Scheme 4

Scheme 4
Scheme 4

Scheme 5

Scheme 5
Scheme 5

Scheme 6

Scheme 6
Scheme 6

Scheme 7

Scheme 7
Scheme 7

Scheme 8

Scheme 8
Scheme 8
  1. Remove the ignition coil cover, then remove the four ignition coils (see «IGNITION COIL REMOVAL/INSTALLATION»(/honda/civic/vii-2000-2003/remont/ignition-system/#ignition-system-all-except-hatch-back-hybrid) ).
  2. Remove the throttle cable clamps and harness holder from the cylinder head cover (see step 9 on «Timing Belt Removal»(ref-173102-S16408413292005030900000) ).
  3. Remove the cylinder head cover (see step 10 on «Timing Belt Removal»(ref-173102-S16408413292005030900000) ).
  4. Remove the grommet from the upper cover, and disconnect the camshaft position (CMP) (top dead center (TDC)) sensor connector. Remove the upper cover (see step 1 on «CMP (TDC) Sensor Replacement»(ref-173102-S12641590182005030900000) ).
  5. Set the No. 1 piston at TDC. The "UP" mark (A) on the camshaft pulley should be at the top, and the TDC marks (B) on the pulley should line up with the top edge of the head.
  6. Select the correct thickness feeler gauge for the valves you're going to check. Intake: 0.18 0.22 mm (0.007 0.009 in.) Exhaust: 0.23 0.27 mm (0.009 0.011 in.)
  7. Insert the feeler gauge (A) between the adjusting screw (B) and the end of the valve stem and slide it back and forth; you should feel a slight amount of drag.
  8. If you feel too much or too little drag, loosen the locknut (A), and turn the adjusting screw (B) until the drag on the feeler gauge is correct.
  9. Tighten the locknut and recheck the clearance. Repeat the adjustment, if necessary.
  10. Rotate the crankshaft 180° counterclockwise (camshaft pulley turns 90°). The "UP" mark (A) on the camshaft pulley should be toward the exhaust side of the head.
  11. Check and, if necessary, adjust the valve clearance on No. 3 cylinder.
  12. Rotate the crankshaft 180° counterclockwise to bring No. 4 piston to TDC. TDC marks (A) are visible again.
  13. Check and, if necessary, adjust the valve clearance on No. 4 cylinder.
  14. Rotate the crankshaft 180° counterclockwise to bring No. 2 piston to TDC. The "UP" mark (A) should be on the intake side of the head.
  15. Check and, if necessary, adjust the valve clearance on No. 2 cylinder.
  16. Install the cylinder head cover (see «Cylinder Head Cover Installation»(ref-173102-S33807079812005030900000) ).

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