Valve clearance refers to the gap between the valve and the valve seat, and its size has a significant impact on the performance and life of the engine. In Perkins six-cylinder engines, the adjustment of valve clearance is also an important maintenance job.
The valve clearance of Perkins six-cylinder engines is usually done by adjusting the valve lifters. The valve lifter is located at the very top of the valve train and its function is to push the valve up and down, thereby controlling the opening and closing of the valve. By adjusting the position of the valve lifter, the size of the valve clearance can be changed.
Valve lash adjustments usually need to be made with the engine fully cooled. Before adjustment, you need to prepare the required tools and measuring instruments, such as screwdrivers, wrenches, feeler gauges, etc. Then follow these steps:
1.Remove the cylinder head cover and valve lifter cover.
2.The size of the valve clearance is measured with a feeler gauge and the measurement results are recorded.
3.Based on the measurement results, use a tool such as a screwdriver or wrench to adjust the position of the valve lifters to the desired clearance size.
4.Reinstall the valve lifter cover and cylinder head cover.
5.Start the engine and observe the operation of the valves to make sure that the valves can open and close properly.
When adjusting the valve clearance, you need to pay attention to the following:
1.Be patient and meticulous when adjusting to avoid repetitive adjustments or over-adjustments that may cause other problems.
2.After adjustment, measure the size of the valve clearance again to ensure that the effect of adjustment meets the requirements.
3.If the valve is found to be working abnormally or there are other problems, it should be checked and repaired in time to avoid affecting the performance and life of the engine.
In conclusion, valve clearance adjustment of Perkins six-cylinder engine is an important maintenance work, which is of great significance to ensure the performance and life of the engine. Pay attention to carefulness and patience when adjusting, and follow the prescribed steps to ensure that the adjusted effect meets the requirements.