INJECTION TIMING ADJUSTMENT [WLT-1, WLT-2, WL-3]

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Caution

• Excessive tension on the timing belt may cause damage to the timing belt and camshaft. If the bolt and nuts of the fuel injection pump are temporarily loosened, re-tension the timing belt.

1. Loosen the bolts and nuts of the fuel injection pump and bracket.

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2. Rotate the crankshaft clockwise and align the crankshaft pulley TDC mark (yellow mark) with the indicator pin.

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3. Remove the hydraulic head plug of the fuel injection pump.

4. Insert the SST into the hydraulic head plug hole and install it so that the dial gauge indicates approx. 2 mm {0.08 in}.

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5. Rotate the crankshaft counterclockwise and find the place where the dial gauge needle does not move near approx. 30° BTDC. (SST installation bolt hole of crankshaft pulley and indicator pin align at approx. 30° BTDC)

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6. Set the dial gauge to 0 mm {0 in}.

7. Rotate the crankshaft clockwise and read the dial gauge when the 10° ATDC mark (white mark) of the crankshaft pulley and the indicator pin align.

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8. Adjust the dial gauge within the specification.

Fuel injection pump plunger adjustment value

0.95—1.05 mm {0.038—0.041 in}

9. Tighten the fuel injection pump in the order shown in the figure.

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10. Remove the SST and install the hydraulic head plug through a new gasket.

11. Re-tension the timing belt.