Hazet-Werk 2588/9 Instrucciones De Uso página 23

USA
Twin Camshaft engines:-
• Similar procedure to single camshaft engines,
but fit both of the HAZET 2588-15 Camshaft
Setting Tools and then, using a sprocket
counter-holding tool, slacken both camshaft
sprocket bolts.
• Rotate the crankshaft until HAZET 2588-16
Flywheel Locking Pin can be inserted, then
counter-hold camshaft
tightening the sprocket bolts.
1.4 / 1.6 16v. FSi Engines (Chain Drive)
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Use HAZET 3688-10 TDC Position Tool and
HAZET 2588-19
Application also required Hazet 2588/10
Tensioner Pin from kit 2588/19.
For model usage / engine codes refer to
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Application Chart, page 6.
• These VAG 1.4 & 1.6 Twin Camshaft petrol
engines are direct injection with
Stratified Injection), and are CHAIN DRIVE.
• Note: Codes BAG, BLF and BLP have variable
camshaft timing on the inlet camshaft
Checking valve timing
Figure 4 , Page 4
Crankshaft TDC Positioning Tool 3688-10
(use with suitable DTI – not included in set)
• Correct engine/crankshaft TDC position is
established using HAZET 3688-10 TDC Tool
together with a suitable DTI (Dial Gauge).
• Remove the spark plug from No.1 cylinder.
• Install the DTI in to HAZET 3688-10 Tool and
secure with the Thumbscrew.
• Screw HAZET 3688-10 fully in to the spark plug
hole of No.1 cylinder.
• Turn the crankshaft in the normal direction of
engine rotation so that the No.1 piston reacts on
the indicator pin of HAZET 3688-10 and in turn
moves the needle of the DTI.
• TDC is achieved when the needle reaches its
highest reading, and prior to it starting to move
in the reverse direction.
Figure 5 , Page 4
ATTENTION:
Now check that the holes in the rear of
the camshafts are positioned as shown
in Figure 5. If not, rotate the crankshaft
one more turn (360°) and re-establish
correct TDC No.1 cylinder position.
by experienced mechanics. Always wear personal protective equipment.
3 Composition and Function
sprockets whilst
Camshaft Setting Tool.
FSi (Fuel
Maintenance work on engines must be carried out only
CAUTION:
Whilst establishing TDC on these
engines the crankshaft MUST NOT
be turned, or be allowed to move,
more than 0.01mm. passed TDC position. If
this occurs, turn the crankshaft backwards
(against direction of rotation), approx. 45° and
then forward again, in the direction of rotation,
to TDC No.1 cylinder position.
Figure 6 , Page 4
Camshaft Setting Tool 2588-19
• Insert HAZET 2588-19 Setting Tool in to the
cylinder head recess and the two holes in the
rear of the camshafts
"TOP" marked on the centre bridge of the
Setting Tool, must be at the top.
• If the HAZET 2588-19 Setting Tool cannot be
installed, the engine timing is incorrect and
must be adjusted.
Adjusting valve timing
• Remove the timing chain cover and re-fit the
crankshaft pulley, tightening the pulley bolt.
• Position the engine at TDC No.1 cylinder using
HAZET 3688-10 Tool and a DTI, ensuring the
piston is at top of compression stroke.
Figure 7 , Page 4
• Turn the crankshaft against direction of engine
rotation by 45° and insert HAZET 2588-10
Locking Pin to 'lock' the tensioner piston. (Note:
2588-10 Pin is in 2588/19 Kit)
ATTENTION:
Mark the timing chain with direction of
rotation
Figure 8 , Page 4
• Counter-hold the camshaft sprockets, using a
suitable Sprocket Holding Tool, and remove the
camshaft sprocket bolts and the Inlet camshaft
sprocket together with the timing chain.
CAUTION:
On codes BAG, BLF and BLP the
Camshaft Timing Adjuster bolt (inlet
camshaft sprocket) has a LEFT-HAND
THREAD
GB
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