14–1 ENGINE MECHANICAL – ENGINE ASSEMBLY ENGINE ASSEMBLY 140OC–03 INSPECTION 1. INSPECT COOLANT (See page 16–1) 2. INSPECT ENGINE OIL (See page 17–1) 3. INSPECT BATTERY (See page 19–13) 4. INSPECT AIR CLEANER FILTER ELEMENT SUB–ASSY 5. INSPECT SPARK PLUG (See page 18–2) 6. INSPECT FAN AND GENERATOR V BELT HINT: You don’t need to check the belt deflection because auto tensioner is adopted. 7. INSPECT IGNITION TIMING (a) Warm up engine. (b) When using hand–held tester or OBDII scan tool. (1) Connect the hand–held tester or OBDII scan tool to the DLC3. HINT: Please refer to the hand–held tester or OBDII scan tool opera- tor’s manual for further details. (c) When not using hand–held tester or OBDII scan tool. TC (1) Using SST, connect terminal 13 (TC) and 4 (CG) of the DLC3. SST 09843–18040 NOTICE: S Be sure not to connect incorrectly. It causes breakage of the engine. S Turn OFF all electrical systems. CG A62199 S Operate the inspection when the cooling fan motor is turned OFF (2) Remove the 2 nuts, 2 clips and cylinder head cover. (3) Pull out the wire harness as shown in the illustration. (4) Connect the clip of the timing light to the engine. NOTICE: S Use a timing light which can detect the first signal. S After checking, be sure to tape the wire harness. A64072 (5) Inspect ignition timing at idle. Ignition timing: 8 – 12_BTDC NOTICE: When checking the ignition timing, the transmission is at neutral position. HINT: After engine rpm is kept at 1,000 – 1,300 rpm for 5 seconds, check that it returns idle speed. 2004 COROLLA (RM1037U) AuthorĂ: DateĂ: 1011 14–2 ENGINE MECHANICAL – ENGINE ASSEMBLY (6) Disconnect the terminal 13 (TC) and 4 (CG) of the DLC3. (7) Inspect ignition timing at idle. Ignition timing: 10 – 18 _BTDC (8) Confirm that ignition timing moves to advanced angle side when the engine rpm is increased. (9) Remove the timing light. (10) Install cylinder
