TESTING AND ADJUSTING ADJUSTING VALVE CLEARANCE 6. While the No. 4 cylinder is at the compression top dead center, adjust the valve clearances marked with Q in the valve arrangement draw- ing. a Adjust the valve clearance according to step 4 above. 7. After finishing adjustment, return the removed parts. 3 Cylinder head cover mounting bolt: 7.84 – 9.8 Nm {0.8 – 1.0 kgm} 20-108 PC130-7 (1)