Alfa Romeo 33 Workshop Manual page 34

CHECK ANiD ADJUSTMENT
T
O F H E
'For @m-l only
Carry out the adjustment of the idle
the g~ears in neutral and all ancillary
U n l o c k ' t h e l o c k n u t a n d t u r n t h e
a d j u s t i n g s c r e w 0 until the speci-
fied value
9 2 0 + 960 r.p.m.
is encountered.
1
1 Adjusting screw
REPLACEMENT
T h i s :procedure is for electronic in-
j e c t i o n 1 . 7 engines w i t h c a t a l y t i c
muffler only.
When Km stated on "Chart of Vehicle
Mainten:ance' Operations" are co-
verecl, please proceed to replace cata-
lytic muffler as follows:
1.
2 . Loosen clamp @ b o l t .
3. Unscrew the three bolts on flange
exhaust manifolds.
4. Unscrew catalytic muffler @
from split rings @ and remove it dis-
engaging it from rear track of exhaust
p i p e . ~
COMPLETE CAR
1 Catalytic muffler
2 Supporting split ring
3 . C l a m p
4 . F l a n g e c o n n e c t i n g c a t a l y t i c
muffler - exhaust manifold
5 . Install a n e w c a t a l y t i c m u f f l e r
working with opposite order in respect
to removal, fitting a new gasket on
flange connecting exhaust manifold.
6.
ing, there are no leaks from' p i p e
connections and that the exhaust
system is not unusually noisy
REPLACEMENT
This procedure is valid for electronic
injection 1.7 engines with catalytic
A t k m s t a t e d o n " C h a r t o f v e h i c l e
M a i n t e n a n c e O p e r a t i o n s " r e p l a c e
lambda probe as follows:
00-l 7
1. Put the vehicle on auto lift.
2. Working from en ine room, dis-
a n d @ o f
lambda probe and disengage wiring
from clips.
1
2 Lanibda probe signal connecter
3 Working from below the vehicle,
u n s c r e w Lam,bda p r o b e 0 a n d
remove it.
4. On installation, spread the probe
thread with grease R.
body
Seez or Bosch 5.964.080.1005 and
tighten iifully
5. Reconnectthewiringofthelambda
probe.