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| 1.Remove all ignition coils. |
2.Remove the cylinder head cover.
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3.Turn the crankshaft clockwise, and align the timing mark on the exhaust camshaft sprocket
against the upper face of the cylinder head as shown in Figure. Therefore, No. 1 cylinder goes
to the compression top dead centre. |
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4.Using a thickness gauge, measure the valve clearance with the arrow shown in Figure. If
deviated from the standard value, make note for the valve clearance. Standard value:
Exhaust valve 0.30 ± 0.03 mm |
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5.Turn the crankshaft clockwise 360 degrees, and put the timing mark on the exhaust camshaft
sprocket in position shown in Figure. Therefore, No. 4 cylinder goes to the compression top
dead centre. |
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6.Check the valve clearance with the arrow shown in Figure. In the same procedure as 4. 7.If the valve clearance is deviated from the standard value, remove the camshaft and the valve tappet. For the camshaft removal, refer to Camshaft Removal and Installation  . |
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8.Using a micrometer, measure the thickness of the removed valve tappet. |
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9.Calculate the thickness of the newly installed valve tappet through the following
equation. A: thickness of newly installed valve tappet B: thickness of removed valve tappet C: measured valve clearance Equation
Exhaust valve: A = B + (C - 0.30 mm)
.11.After installing the timing chain, measure the valve clearance using the procedure 3 to 6. Confirm the clearance is within the standard value.
13.Using white gasoline and so on, degrease the cylinder head cover, timing chain case and cylinder head.
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14.Apply a 4 mm bead of liquid gasket as illustrated. Specified sealant:
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15. Install the cylinder head cover and tighten the tightening bolts using the following
procedures. (1) Temporarily tighten to the following torque in order shown in the illustration. Tightening torque: 3.0 ± 1.0 N·m (2) Tighten to the specified torque in order shown in the illustration. Specified torque: 5.5 ± 0.5 N·m 16.Install the ignition coils. |