Valve Timing, Checking

VALVE TIMING, CHECKING
- Remove upper toothed belt guard and cylinder head cover.
- Check toothed belt tension.





- Set engine to TDC for No.1 cylinder (arrow). Setting bar must fit into the camshaft slot. If it is not possible to insert the bar, adjust valve timing as follows.
- Rotate camshaft so that setting bar can be inserted.
- Centralizing the setting bar:
Turn camshaft so that one end of the setting bar contacts the cylinder head. Using a feeler gauge, measure the gap at the other end of the setting bar. Place a feeler gauge equal to half that gap between the setting bar and cylinder head. Turn camshaft until the setting bar contacts the feeler gauge. Place a 2nd feeler gauge, of the same thickness, at the other end between the setting bar and the cylinder head.
- Loosen camshaft sprocket mounting bolt 1/2 turn. Release camshaft sprocket from camshaft taper by tapping with a hammer (using a drift through rear toothed belt guard opening).





- Lock injection pump sprocket with pin 2064.
- Check TDC, if necessary turn crankshaft until TDC mark on flywheel aligns with mark on bell housing, see illustration above.

NOTE: It may be necessary to remove the toothed belt in order to set the injection pump sprocket and the TDC marking on the flywheel.

- Remove pin.
- Tension toothed belt and tighten camshaft securing bolt to 45 Nm (33 ft lb).
- Remove setting bar.
- Check injection pump timing.