Engine Mechanical: Adjustments Toyota Corolla IX

ADJUSTMENT

Note. Inspect and adjust the valve clearance when the engine is cold.

Scheme 14

Scheme 15

Scheme 16

Scheme 17

Scheme 18

Scheme 19

Scheme 20

Scheme 21

Scheme 22

Scheme 23

Scheme 24

Scheme 25

Scheme 26

Scheme 27

Scheme 28

1. Remove Cylinder Head Cover. See «REMOVAL»(ref-163214-S35448928722005011900000) under TIMING CHAIN.
2. Set No. 1 Cylinder To TDC/compression. Turn the crankshaft pulley, and align its groove with the timing mark "0" of the timing chain cover. Check that the point marks of the camshaft timing sprockets are in straight line on the timing chain cover surface as shown in the illustration. If not, turn the crankshaft 1 revolution (360°) and align the marks as above.
3. Inspect Valve Clearance. Check only the valves indicated. Using a feeler gauge, measure the clearance between the valve lifter and camshaft. Record the out-of-specification valve clearance measurements. They will be used later to determine the required replacement valve lifter. Turn the crankshaft 1 revolution (360°) and align the mark as above (See step 2 ). Check only the valves indicated as shown. For Measurement procedure the valve clearance (See step 3 (a)( 1 and 2 )).
4. Adjust Valve Clearance. Set the No. 1 cylinder to the TDC/compression (See step 2 ). Place matchmarks on the timing chain and camshaft timing sprockets. Remove the 2 nuts and chain tensioner. Remove the camshafts and timing sprocket assemblies. Remove the 19 bolts and 9 camshaft bearing caps. For bolt removal sequence, see step 21, REMOVE CAMSHAFTS in REMOVAL under CYLINDER HEAD. Remove the 2 camshaft and timing sprocket assemblies. CAUTION: Be careful not to drop anything inside the timing chain cover. Do not allow the chain to come into contact with water or dust. Tie the timing chain as shown in the illustration. Remove the valve lifter. NOTE: Lifters are available in 35 sizes in increments of 0.020 mm (0.0008 in.), from 5.060 mm (0.1992 in.) to 5.740 mm (0.2260 in.). Determine the replacement valve lifter size according to this formula or charts: for charts (Scheme 24)and (Scheme 25). Using a micrometer, measure the thickness of the removed lifter. Calculate the thickness of a new lifter so the valve clearance comes within the specified value. T... Thickness of used lifter. A... Measured valve clearance. N... Thickness of new lifter. Intake: N = T + (A - 0.20 mm (0.008 in.)). Exhaust: N = T + (A - 0.30 mm (0.012 in.)). Select a new lifter with a thickness as close as possible to the calculated values. Reinstall the valve lifter. See step 3 in REASSEMBLY under CYLINDER HEAD. Align the crankshaft pulley groove with the timing mark 0 of the timing chain cover. Hold the timing chain, and place the intake camshaft and timing sprocket assembly. Align the matchmarks on the timing chain and camshaft timing sprocket. Reinstall the 2 camshaft and timing sprocket assemblies. See step 1 in INSTALLATION under TIMING CHAIN. Check that the point marks of the camshaft timing sprocket and VVT timing sprocket are in straight line on the timing chain cover surface, as shown in the illustration. Check that the matchmarks on the timing chain and 2 timing sprockets. Install the chain tensioner. See step 5 in INSTALLATION under TIMING CHAIN. Recheck the valve clearance. See step 3. Check the valve timing. See step 14 in INSTALLATION under TIMING CHAIN.
5. Reinstall Cylinder Head Cover. See step 15 in INSTALLATION under TIMING CHAIN.

Scheme 29

Scheme 30

Scheme 31

1. Allow The Engine To Warm Up To Normal Operating Temperature.
2. Connect TOYOTA Hand-Held Tester Or OBD II Scan Tool. Connect the TOYOTA hand-held tester or OBD II scan tool to the DLC3. Please refer to the TOYOTA hand-held tester or OBD II scan tool operator's for further details.
3. Check Idle Speed. See «IDLE SPEED»(ref-163214-S36060490482005011900000) .
4. Connect the tester probe of a timing light to the black-white lead wire of the ignition coil connector for No. 1 cylinder.
5. Inspect Ignition Timing. NOTE: After engine rpm is kept at 1,000 - 1,300 rpm for 5 seconds, check that it returns to idle speed. Using SST, connect terminals TE1 and E1 of the DLC1. SST 09843-18020 Using a timing light, check the ignition timing. Ignition timing: 8 - 12° BTDC @ idle . Remove the SST from the DLC1.
6. Further Check Ignition Timing. Ignition timing: 6 - 15° BTDC @ idle .
7. Disconnect Timing Light From Engine.
8. Disconnect TOYOTA Hand-Held Tester Or OBD II Scan Tool.