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5.1.5. Identify the crankshaft timing mark on the lower timing chain
cover, positioned at approximately 4 o'clock relative to the
crankshaft pulley. Locate the timing notch in the outer
diameter of the crankshaft pulley.
NOTE: It may be difficult to see the timing mark on the lower timing
chain cover if there is a build up of dirt. Care must be taken
not to confuse the timing mark with other markings on the
timing chain cover.
5.1.6. Using VS5125-01 Crankshaft Pulley Holding Tool, rotate the
engine in the normal direction of rotation until the mark on the
crankshaft pulley is aligned with the mark on the lower timing
chain cover.
5.1.7. If the crankshaft is moved beyond TDC position, rotate it back
to approximately 45º before TDC and repeat the crankshaft
positioning procedure.
5.1.8. If it is not possible to accurately locate the crankshaft timing
mark on the timing chain cover use a suitable TDC
positioning tool, such as VSE2515+AK2515, in the spark plug
aperture of no.1 cylinder to ensure that the crankshaft is in
the correct position.
© Jack Sealey Limited
5.1.9. With the crankshaft at TDC position on No.1 cylinder the
timing marks on the camshaft sprockets should be towards
the top.
5.1.10. If the marks are not at the top of the sprockets, rotate the
crankshaft one full turn in the normal direction of rotation,
returning to piston TDC position. Check that the marks are at
the top of the sprockets.
5.1.11. To check that the camshaft timing is correct, take a
measurement from the timing mark of the inlet camshaft
sprocket to the far side of the rib on the upper chain guide.
This distance should be 61-64mm.
5.1.12. Take a second measurement from the timing mark of the inlet
camshaft sprocket to the timing mark of the exhaust camshaft
sprocket. This distance should be 124-126mm.
NOTE: If the engine timing is out of position by one tooth/one chain
link, this is approximately equal to 6mm deviation in
measurement.
5.1.13. If the crankshaft is set at TDC position and either of the
camshaft position measurements are incorrect, engine timing
will need to be adjusted.
Original Language Version
VS5125
Issue: 3 - 22/03/17
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