Valve Clearance Adjustment: Adjustment

NOTE: Connect the HDS to the DLC , and monitor ECT SENSOR 1. Adjust the valve clearance only when the engine coolant temperature is less than 100°F (38°C).

1. Cylinder Head Cover - Remove
2. Valve Clearance - Adjust

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   1. Set the No. 1 piston at top dead center (TDC). Align the pointer (A) on the front upper cover with the No. 1 piston TDC mark (B) on the front camshaft pulley.

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   2. Select the correct feeler gauge for the valve clearance you are going to check. Valve Clearance

   Exhaust:

   0.28-0.32 mm (0.011-0.012 in)

   Intake:

   0.20-0.24 mm (0.008-0.009 in)

   INTAKE  Courtesy of HONDA, U.S.A., INC.HONDA, U.S.A., INC. EXHAUST  Courtesy of HONDA, U.S.A., INC.HONDA, U.S.A., INC.

   3. Insert the feeler gauge (A) between the adjusting screw and the end of the valve stem on the No. 1 cylinder, and slide it back and forth; you should feel a slight amount of drag.

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   4. If you feel too much or too little drag, loosen the locknut, and turn the adjusting screw until the drag on the feeler gauge is correct. 5. While holding the adjusting screw with the screw driver, tighten the locknut, then recheck the clearance. Repeat the adjustment, if necessary. Specified Torque

   20 N.m (2.0 kgf.m, 15 lbf.ft)

   Apply new engine oil to the nut threads.

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   6. Rotate the crankshaft clockwise. Align the pointer (A) on the front upper cover with the No. 4 piston TDC mark (B) on the front camshaft pulley. 7. Check and, if necessary, adjust the valve clearance on the No. 4 cylinder.

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   8. Rotate the crankshaft clockwise. Align the pointer (A) on the front upper cover with the No. 2 piston TDC mark (B) on the front camshaft pulley. 9. Check and, if necessary, adjust the valve clearance on the No. 2 cylinder.

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   10. Rotate the crankshaft clockwise. Align the pointer (A) on the front upper cover with the No. 5 piston TDC mark (B) on the front camshaft pulley. 11. Check and, if necessary, adjust the valve clearance on the No. 5 cylinder.

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   12. Rotate the crankshaft clockwise. Align the pointer (A) on the front upper cover with the No. 3 piston TDC mark (B) on the front camshaft pulley. 13. Check and, if necessary, adjust the valve clearance on the No. 3 cylinder.

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   14. Rotate the crankshaft clockwise. Align the pointer (A) on the front upper cover with the No. 6 piston TDC mark (B) on the front camshaft pulley. 15. Check and, if necessary, adjust the valve clearance on the No. 6 cylinder.

3. All Removed Parts - Install

   1. Install the parts in the reverse order of removal.

4. Maintenance Minder - Reset

   1. If the Maintenance Minder required to replace the valve clearance, reset the Maintenance Minder with the gauge (see "Resetting the Maintenance Minder").