AMONG THE 1.135 BASIC DIESEL ENGINES, TURBOCHARGED DIESEL ENGINES DESIGNED BEFORE 1989 HAVE UNSATISFACTORY STARTING PERFORMANCE DUE TO THEIR LOW COMPRESSION RATIO. IN ORDER TO IMPROVE THE STARTING PERFORMANCE, MEASURES HAVE BEEN TAKEN TO INCREASE COMPRESSION IN TURBOCHARGED DIESEL FUEL SINCE 1989. IN SOME TURBOCHARGED MODELS, IN ORDER TO FURTHER IMPROVE THEIR LOW-TEMPERATURE STARTING PERFORMANCE, A NEAR AIR PREHEATING DEVICE IS ALSO INSTALLED ON THE INTAKE PIPE OF THE DIESEL ENGINE.2. AFTER STARTING THE DIESEL ENGINE, IT IS NECESSARY TO WAIT FOR THE OIL PRESSURE TO RISE BEFORE ACCELERATING, OTHERWISE IT MAY CAUSE THE TURBOCHARGER BEARINGS TO BURN OUT. IT IS ESPECIALLY IMPORTANT TO REPLACE THE LUBRICATING OIL, CLEAN THE TURBOCHARGER, FILTER OR REPLACE THE CORE COMPONENTS OF THE DIESEL ENGINE, AND STOP FOR MORE THAN A WEEK3. DIESEL ENGINES SHOULD AVOID LONG-TERM IDLE OPERATION, OTHERWISE IT IS EASY TO CAUSE TURBOCHARGER OIL TO LEAK INTO THE COMPRESSOR AND CAUSE EXHAUST PIPE OIL TO SPRAY.4. AFTER REPLACING THE TURBOCHARGER WITH A NEW DIESEL ENGINE, THE OIL INLET PIPE ON THE TURBOCHARGER MUST BE REMOVED AND 50-60ML OF ENGINE OIL MUST BE ADDED TO PREVENT THE TURBOCHARGER BEARINGS FROM BEING BURNED OUT DUE TO LACK OF OIL DURING START-UP.BEFORE STOPPING THE DIESEL ENGINE, IT NEEDS TO IDLE FOR 2-3 MINUTES. UNLESS UNDER SPECIAL CIRCUMSTANCES, SUDDEN STOPPING IS NOT ALLOWED TO PREVENT THE TURBOCHARGER BEARING FROM BITING DUE TO OVERHEATING.6. IT IS NECESSARY TO FREQUENTLY MONITOR WHETHER THERE IS ANY RUBBING SOUND BETWEEN THE TURBOCHARGER IMPELLER AND THE HOUSING AFTER THE DIESEL ENGINE IS STOPPED. IF THERE IS RUBBING, THE TURBOCHARGER SHOULD BE IMMEDIATELY DISASSEMBLED TO CHECK WHETHER THE BEARING CLEARANCE IS NORMAL.7. THE SEALING OF THE INTAKE AND EXHAUST PIPELINES OF THE TURBOCHARGED DIESEL ENGINE MUST BE MAINTAINED, OTHERWISE IT WILL AFFECT THE PERFORMANCE OF THE DIESEL ENGINE. THE TIGHTENING NUT OR BOLT SHOULD BE CHECKED FOR LOOSENESS, AND THE SEAL SHOULD BE REPLACED IF NECESSARY.