What Causes Diesel Engine Camshaft and Crankshaft Signal Desynchronization?

[LuciaRose]

It may be caused by timing belt misalignment. Below is relevant information about the crankshaft oil seal: 1. Hazards of crankshaft oil seal leakage: Besides wasting engine oil, severe leakage may cause internal engine damage. Moreover, since engine temperatures are extremely high, oil leakage onto the engine or other high-temperature components can easily lead to spontaneous combustion. Although engine oil has a flash point exceeding 200°C, when it comes into contact with turbochargers operating at several hundred degrees Celsius—especially when leaked oil mixes with other impurities—the flash point decreases, significantly increasing fire risk. 2. Causes of crankshaft oil seal leakage: This may occur when petroleum-based lubricants are used during the oil seal press-fitting process instead of specified non-petroleum-based lubricants, causing the seal to loosen or detach after prolonged engine operation (some manufacturers use engine oil as a cheaper alternative to more expensive non-petroleum-based lubricants to reduce production costs).