V45 MAINTENANCE RADIATOR CYLINDER HEAD COVER REAR CRANKCASE MATING SURFACE Remove the radiator (See page 6-8). Remove the front and rear cylinder head cover bolts and both cylinder head covers. Remove the alternator and left crankcase covers. INSPECTION Measure and adjust the intake and exhaust valve clearances as described below. Rotate the crankshaft clockwise to align the T1.3 mark with the crankcase mating surfaces. Make sure the No. 1 piston is at TDC (Top Dead Center) on the compression stroke. Check the valve clearances for the No. 1 cylinder using two feeler gauges for each pair of valves; one for each valve that shares a common rocker arm. VALVE CLEARANCE (IN, EX): 0.12 mm (0.005 in) If adjustment is needed, loosen the lock nuts and turn the adjusting screws until there is a slight drag on both feeler gauges. Both feeler gauges should remain inserted during adjustment. Hold the adjusting screws and tighten the lock nuts. TORQUE: 21-25 N.m (2.1-2.5 kg-m, 15-18 ft-lb) CAUTION: The lock nuts will come loose if not tightened to the correct torque value. FEELER GAUGE VALVE ADJUSTING WRENCH 10 x 12 mm Recheck the valve clearance. Rotate the crankshaft 270° clockwise to align the T2.4 mark with the crankcase mating surfaces and check the valve clearances for the No. 2 cylinder. Adjust using the procedures for the No. 1 cylinder. Rotate the crankshaft 90° clockwise to align the T1.3 mark with the crankcase mating surfaces and check the valve clearances for the No. 3 cylinder. Adjust using the procedures for the No. 1 cylinder. Rotate the crankshaft 270° clockwise to align the 12.4 mark with the crankcase mating surfaces and check the valve clearances for the No. 4 cylinder. Adjust using the same procedures as for the No. 1 cylinder. 37 Date of Issue: October, 1982 0 HONDA MOTOR CO., LTD. 3-11