1.4 blocked air filter

After long-term use of the engine, the air filter will filter because of excessive dust and cause obstruction, resulting in high suction inlet compressor impeller wheel back will be too high due to the vacuum sealing ring leakage , it is necessary for regular inspection and maintenance air filter, the filter is not obstruction, do not breakdown, the supply remained normal state.

1.5 sealing ring wear or failure

Long-term replacement of oil, the oil in too many impurities from the abrasive role, which exacerbated sealing ring wear, thinning, and gradually lose their sealing, closure of oil caused by oil spills. Refers to the so-called oil impurities greater than 0.02 mm in foreign particles, these particles can be random impurities oil into the oil-film bearings and shaft sealing ring and in the serious grinding rotating parts, heavier parts wear failure.