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fig.3
5.3.3. Fit the Camshaft Locking Plate VSE135.V2-01/VSE135.V2-02 (fig.4).
5.3.4. Slacken the exhaust camshaft sprocket fixing bolts.
5.3.5. Compress the secondary timing chain tensioner and lock it in its retracted position using a suitable pin.
5.3.6. On inlet camshaft drive sprockets without a spring plate fitted, remove the Vanos unit, the camshaft sprocket fixing nuts and the thrust
washer.
5.3.7. On inlet camshaft drive sprockets that do not have a spring plate fitted, remove the Vanos unit while turning the exhaust camshaft sprocket
in a clockwise direction. Remove the camshaft sprocket fixing nuts and the spring plate.
5.3.8. It is now possible to remove the timing chain, sprockets, guides and tensioners.
WARNING: The tensioner has a very strong spring.
5.4.
Reassembly
5.4.1. Fit the camshaft drive sprocket, ensure the arrow is pointing upwards and that the threaded holes are positioned on the left side of the slots
in the sprocket (fig.5).
5.4.2. Fit the Timing Chain Pre-tensioning tool VSE135.V3-07 and screw the adjuster in until
it comes into contact with the guide rail; do not tighten further past this point.
5.4.3. Fit the timing chain guide and secondary timing chain tensioner.
5.4.4. Fit the secondary timing chain and sprocket; ensure that the threaded holes are
positioned on the left side of the slots in the sprocket.
5.4.4. Fit the thrust washers, and spring plate, to the inlet camshaft and tighten the fixing nuts
to 10Nm
5.4.5
On inlet camshaft sprockets that do not have a spring plate, turn the sprocket clockwise
until the detent position is reached.
5.4.6. Turn the sprocket ant-clockwise whilst inserting the Vanos unit, turn the splined shaft
until it engages.
5.4.7 On inlet camshaft sprockets without the spring plate, turn the sprocket clockwise as far
as the stop.
5.4.8. Turn the sprocket anti-clockwise whilst inserting the Vanos unit until the unit fits flush
with the cylinder head.
5.4.8. Tighten the Vanos unit securing bolts.
5.4.9. Remove the locking pin from the secondary timing chain tensioner.
5.4.10. Preload the timing chain by tightening the Timing Chain Pre-tensioning tool
VSE135.V3-07 to 1.3 Nm.
5.4.11. Tighten the exhaust camshaft sprocket securing bolts initially to 1.5Nm followed by 2.22 Nm.
5.4.12 Remove the timing chain pre-tensioner and refit the timing chain tensioner.
5.4.13 Remove all tooling, turn the crankshaft through two revolutions clockwise. Ensure the Crankshaft Timing Pin VSE135.V3-02 and the
Camshaft Locking Plate VSE135.V2-01/VSE135.V2-02 can be refitted.
5.4.13. Once the timing is confirmed as correct, remove all tooling and r eassemble the engine in the reverse order of dismantling.
5.5.
M60 and M62 Engines
5.5.1.
Note: To remove the timing chain on these engines the sump will need to be removed.
This kit does not contain the tooling to set the camshaft sensor plate positions if the
engine is so fitted.
5.5.2.
If the transfer chains need to be removed, their tensioners will need to be locked in their
retracted position using suitable tensioner locking pins.
5.5.3.
Dismantling
Turn the engine in the direction of rotation and insert the appropriate Crankshaft Timing
Pin VSE135.V3-02 through the datum hole in the bell housing (fig.1).
5.5.4.
There is a stamped mark on the lower timing case "OT" that must match up with the
same mark on the crankshaft pulley "OT".
(DO NOT use the 45 .VOT marking on the pulley).
5.5.5.
To ensure the engine is correctly positioned at TDC check that the camshaft lobes on
number one cylinder are almost facing each other as shown (fig.6)
5.5.6. Once the engine is correctly positioned the camshaft locking tools can be fitted.
© Jack Sealey Limited
fig.4
Original Language Version
fig.5
fig.6
VSE135.V3 Issue:2(I) - 26/02/15
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