Hazet 2588/19, Operating Instructions Manual

Page: 29 / 72

29
Maintenance work on engines must be carried out only by
experienced mechanics. Always wear personal protective equipment.
GB
Timing Belt Adjustment / Timing Belt
Tensioning
➪
For model usage / engine codes
refer to Application Chart, pages 6 - 11
Figure
5
, Page 3
Double-Pin Wrenches 2587, 2587-1 and
2587-2
• The belt tensioner roller has two holes in
which the two pins of the Double-Pin
Wrenches 2587, 2587-1 or 2587-2 are inser-
ted allowing them to turn the belt tensioner
roller and to tension the timing belt.
Part 1B: Pumpe Düse (Unit Injection) Diesel
Engines
1.2l, 1.4l and 1.9l TDi PD engines
➪
For model usage / engine codes
refer to Application Chart, pages 6 - 11
Crankshaft Locking
Figure
6
, Page 3
2588-1 Crankshaft Fixing Device
• The crankshaft is turned clockwise until
timing marks align. Then the crankshaft gear
is locked in this position with the Crankshaft
Fixing Device 2588-1. Push the tool from the
front face of the crankshaft gear into the
gear teeth so that the pin of the Crankshaft
Fixing Device 2588-1 fits into the hole in the
oil seal housing.
Figure
7
, Page 4
CAUTION:
The timing mark “arrow“ on the Crankshaft
Fixing Device 2588-1
must align with the
mark on the crankshaft gear.
Temporarily remove the plastic knob
off the tool to improve visibility of the
mark.
Figure
8
, Page 4
Camshaft Timing / Locking
Alignment of camshaft timing marks
• The mark on the camshaft sprocket (located
behind the sprocket teeth ) must align with
the marking on the casting
“3Z“ (left) for 3
cylinder engines or “4Z“ (right) for 4 cylin-
der unit injection (Pumpe Düse) engines .
Lock the camshaft in this position by inser-
ting the Locking Pin 2588-3 through the
elongated slot on the left-hand side of the
camshaft sprocket. Having located the
locking tools in position, the belt tension can
be released and the old timing belt can be
removed.
• The 3 bolts of the sprocket can be slacke-
ned allowing the sprocket to move.
Timing Belt Tensioning
CAUTION:
Up to 2002, vehicles with unit injec-
tion (Pumpe Düse) diesel engines
have been equipped with a hydraulic
belt tensioner. Since 2002 most of
the unit injection (Pumpe Düse) engines
have changed to a mechanical tensioner.
Tensioner Tools for Hydraulic Belt
Tensioner – 2588-2, 2588-9 and 2587-1
CAUTION :
Belt tension adjustment must only be
carried out when the engine is
cold .
Figure
9
, Page 4
2588-2 Locking Plate
• Insert a suitable hex head wrench into the
tensioner roller’s hexagon and turn until the
Locking Plate 2588-2 can be
inserted, then release the tension off the
timing belt.
Figure
0
, Page 4
Double-Pin Wrench 2587-1
• Locate Double-Pin Wrench 2587-1 into the
two holes in the tensioner roller.
• Turn 2587-1 clockwise, until pointer (1)
comes to a stop at position (2).
• Install the tensioner device and fit new
timing belt.
• Ensure camshaft sprocket is in position
within the elongated slots.
Composition and Function
USA