What is the valve adjustment sequence for a 4-cylinder diesel engine?
1 Answers
4-cylinder diesel engine valve adjustment sequence is cylinder 1, cylinder 2, cylinder 4, cylinder 3. Here are the detailed instructions: 1. Sequence: Rotate cylinder 1 to top dead center of compression (there is a scale on the crankshaft pulley or marks on the flywheel) aligned with the 0 scale or timing gear housing pointer. Adjust the intake and exhaust valves of cylinder 1, intake valve of cylinder 2, and exhaust valve of cylinder 3. Rotate 360°, then adjust the exhaust valve of cylinder 2, intake valve of cylinder 3, and both intake and exhaust valves of cylinder 4. 2. Adjustment: Diesel engine valves must be fully closed before adjustment. Different automobile manufacturers have specific regulations and technical requirements for valve clearance adjustment. The adjustment can be done in either cold or hot state, with different clearance values for each state. The vehicle can be adjusted in both cold and hot states, but the valve clearance values differ between these conditions.