VALVE CLEARANCE CHECK AND ADJUSTMENT

3.Align the notch of the crankshaft pulley with the "0" timing mark to set the No. 1 or No. 4 cylinder to the compression top dead centre position. note If the dent on the camshaft is pointing directly upwards, the No. 1 cylinder will be at the compression top dead centre position. If the crankshaft is then turned once, the No. 4 cylinder will then be at the compression top dead centre position.

4.Check the valve clearances at the places by arrows in the illustration by the following procedure. White arrow: When No. 1 cylinder is at compression top dead centre position Black arrow: When No. 4 cylinder is at compression top dead centre position (1) Use a thickness gauge to measure the valve clearance. If deviated from standard value, make a note for the valve clearance. Standard valve (Cold engine): Intake side 0.15 - 0.25 mm Exhaust side 0.25 - 0.35 mm note There should be certain amount of resistance against the thickness gauge when taking the measurements. If the thickness gauge is moving too smoothly, a correct measurement cannot be obtained. (2) Use the measured values as a reference for selecting adjustment shims which will bring the incorrect valve clearance to the standard value. A: thickness of newly installed shim B: thickness of removed shim C: measured valve clearance Equation Intake valve: A = B + (C - 0.2) mm Exhaust valve: A = B + (C - 0.3) mm note The thicknesses of the adjustment shims are between 2,250 - 3,150 mm (37types which increase in thickness by 0.025 mm) Size identification mark: "2775" = 2.775 mm thickness (3) Remove the camshaft and install the shim which was selected in step 2. (4) Re-measure the valve clearances and check that they are all at the standard value. 5.Turn the crankshaft once to align the notch of the crankshaft pulley with the timing mark "0". 6.Check and adjust the other valve clearances according to the step 4.