4.2.1 In order to check the camshaft timing the camshaft covers must
be removed.
4.2.2 With the crankshaft locked in ‘timed’ position the ‘timing flats’
(fig.6a) on the camshaft should be uppermost.
4.2.3 One of the VS4983 Camshaft Setting Plates is placed across
the ‘timing flats’ on the left-hand bank of camshafts and the
other Plate is located across the ‘timing flats’ on the right-hand
bank.
IMPORTANT:
References made to left-hand bank and right-
hand bank are as viewed from the direction of the camshaft
gears.
4.2.4 In order for the camshaft timing to be correct,
both
Setting
Plates
MUST fit flush on to the camshaft ‘timing flats’ and
rest fully on the surface of the cylinder head (fig.8).
If this cannot be achieved, then timing adjustment will be
necessary.
Timing adjustment and applications involving cylinder head/
camshaft removal will involve removal/installation of gears and
timing chains.
These applications require the front timing chain cover to be
removed, for access to gears, chains and tensioners, and to
remove the cover, the crankshaft pulley must be removed.
4.3
VS4985 Crankshaft Pulley Remover/Installer Tool Kit –
Associated Tool Set – not included in VS4980 Kit
The VS4985 Set comprises VS4921 Crankshaft Pulley Holding
Tool and VS4922 Crankshaft Pulley Remover Set (fig.9).
These tools must be used together when removing the
crankshaft pulley.
fig.9
fig.8
fig.7
4.1.1 The shapes of these Flywheel Locking Pins match the
appropriate ‘timing hole’ profiles in the flywheel (fig.3).
4.1.2 The Flywheel Locking Pin enters in to the flywheel ‘timing hole’
through the crankshaft position sensor hole (fig.4). The position
sensor is removed, and the Flywheel Locking Pin is inserted
through the engine, in to the flywheel (fig.4a) and bolted in
position.
fig.4a
WARNING: Under certain circumstances it may be possible
to insert the VS4982 Locking Pin for later engines into the
flywheel of early engines. However it will not feel a good,
positive fit and it will not be possible to fit the securing
screw for the Pin as the securing hole will be off-set (fig.5).
If this occurs, remove and fit VS4981 Pin.
4.2
VS4983 Camshaft Setting Plate Set (Pair)
fig.6
fig.5
fig.3
fig.4
fig.6a
These two Flywheel Locking Pins cover the complete range of
engines.
They are colour coded and for additional identification it can
also be seen in fig.2, that VS4981 (Silver) has two parallel flat
faces, whereas VS4982 (Gold) has three flat faces.
Original Language Version
© Jack Sealey Limited
VS4980
Issue No: 3 (SP) 08/07/15
