Alfa Romeo alfa 33 Workshop Manual page 25

6. Interpose tool C.6.0168 between
tapper bucket upper part and cam
minimum radius and, by means of
wrench A.5.0193, operate until the
prescribed clearance is obtained.
.
For better security check clear-
7 .
ance after having removed previously
inserted cup locking pin.
8. Repeat the procedure for each
valve of the two heads.
9. At the end of operation, restore
the tank oil level and reassemble
cover and spark plugs.
CHECKING, REPLACING
AND ADJUSTING DRIVE
BELTS
Alternator and water pump
control belt
Inspect belt for cracks or damage.
Replace it if necessary. Push on belt
longest section, located between
engine pulley and alternator pulley,
applying an 79 N (8 kg; 3.63 lb) load
and verify relevant deflection which
should be of 15 mm
contrarywise proceed to adjust belt
tension as follows.
7. Loosen bolts 1 and 0 as
well as screws
3 t h a t s e c u r e
alternator support bracket to the
engine' s front cover.
2. Move the alternator so as to
either stretch or slacken the belt and
then tighter&gain bolt 0.
3. Check again belt tension and
then tighten all previously loosened
bolts.
COMPLETE CAR
1 Bolt
2 Bolt
Replacing timing belts with
engine on car
R E M O V A L
1.
Disconnect electric fan wiring,
loosen relevant screws
remove fan from radiator through
lower channel 0.
1 Screw
2. Remove spark plugs, alternator
and water pump control belt.
(0.59 in);
3. Remove camshaft belts plastic
covers.
4. Remove camshaft support cov-
ers.
5 . R e m o v e t i m i n g p l a s t i c c o v e r
located on cylinder block rear cover,
and rotate crankshaft till piston in
no. 1 cylinder is set in top dead
Such correct position is achieved
w h e n t h e
mark @ on flywheel is in line with
the mark on rear cover 1
3 Screw
and
2
2 Channel
reference
T-shaped
1 Mark on rear cover
2 T - shaped reference mark
6. Loosen
idler
pulleys
0
nuts 1 and
then press idler
p u l l e y s @ so a s t o o v e r c o m e
t e n s i o n l o a d o n b e l t s . T i g h t e n
nuts
while in this position.
1 Lock nur
2 Idler pulley
Now remote first the right hand
7.
cogged belt and then the left hand
belt from camshaft and crakshaft
pulleys.
ASSEMBLY
CAUTION:
Check again engine timing proceed-
ing as per step Sabove.
1. Rotate camshafts till reference
marks stamped on same are in line
with those stamped on relevant
support.
lock
M a y 1 9 8 3