Common Diesel Engine Failures and Their Repairs

[DePaige]

Here are common diesel engine failures and their repair methods: 1. Diesel engine exhaust valve stuck: Start steadily in low gear, wait for the RPM and power to increase before steadily climbing a slope. Maintain the correct position of the exhaust port, ensuring the angle between the exhaust port and the ground is greater than 45°. When cutting the exhaust valve guide, leave a certain internal chamfer to increase the storage capacity of lubricating oil. 2. Incorrect fuel supply from the injection pump: Open the inspection window of the injection pump and check whether the fastening screws of the gear ring are loose or detached, and whether the scribe lines on the gear ring and the drum are aligned. If there is any deviation, align and fasten them. If the fault phenomenon is alleviated but does not disappear when the fuel supply to a certain cylinder is cut off, it indicates not only that the fuel supply of that cylinder is excessive but also that other cylinders have excessive fuel supply. In this case, the injection pump should be recalibrated.