Valve clearance adjustment
K7M engine (8 valves)
Adjustment values
- Adjusting clearance on a cold engine, mm:
- Inlet valves: 0.10-0.15 mm;
- Exhaust valves: 0.25 - 0.30 mm (no valve replacement);
- Exhaust valves: 0.20 - 0.25 mm (with valve replacement).
Torque tighten the valve clearance adjusting nut (9 Nm).
Adjustment
1) Method "free rockers"
1. Set the valves of cylinder 1 to the position of the end of the exhaust stroke - the beginning of the intake stroke: adjust the gap between the end of the valve stem and rocker arm 4.
2. Set the valves of cylinder 3 to the position of the end of the exhaust stroke - the beginning of the intake stroke: adjust the gap between the end of the valve stem and rocker arm 2.
3. Set the valves of the 4th cylinder 4 to the end of the exhaust stroke - the beginning of the intake stroke: adjust the gap between the end of the valve stem and rocker arm 1.
4. Set the valves of the 2nd cylinder 2 to the position of the end of the exhaust stroke - the beginning of the intake stroke: adjust the gap between the end of the valve stem and rocker arm 3.
2) Method "full opening of the exhaust valve"
1. (A) Set cylinder 1 exhaust valve to full open position.
2. (IN) Check the intake valve clearance of cylinder 3.
3. (WITH) Check the clearance of the exhaust valve of cylinder 4.
4. Repeat operations for other cylinders in the order shown.