Checking Of Emissions; Checking On Maximum Throttle Valve Opening; Check And Adjustment Of Idle, R.p.m. And Exhaust Emissions - Alfa Romeo 33 Workshop Manual

2 Adjustment clip
3 Accelerator table sheath
3. Cfhe,&king on maximum
a. With accelerator pedal pressed
a s fa~r as it Will go, check that the
accelerator control cam cari still rotate
. Gp=l i2,mm
If ne'cessarv, proceed to adjustement
by acting on stop screw @ below the
accelerator pedal.
Stop screw
PA333500883300
COMPLETE CAR
CHECKING OF
EMMISSIONS
CHECK A!D ADJUSTMENT
OF IDLE, R.P.M. AND
EXHAUST EMISSIONS
a. Cleaning and replacement of air
plugs, tables, cap, frotary rotor (see
G r o u p 0 5 - transistorised ignition
without contacts).
c. Ignition timing.
d. Checking of accelerator control
adjustment (sec Group 04 - Checking
and accelerator control adjustment).
CAUTION
If during engine tune up there is no
extra cooling fan available, keep
checking the therinometer and the
water temperature warning light on
dashboard and immediately suspend
testing if temperature' goes u p ,
meaning that engine is overheating.
follows:
1.
the tail pipe 0.
2 . Connect a n electronic tachome-
ter'to the engine.
3 . S t a r t t h e w o r k s h o p
engine and warm it UP
temperature.
running
t o n o r m a l
5 . N o w c h e c k t h a t e n g i n e r p m i s
within specified value.
900 + 1000 r.p.m.
2 CO-tester probe
6 . If! n o t w i t h i n s p e c i f i e d v a l u e ,
adjust ~ idle-rpm just by turning
relevant idle-adjusting screw @
rpm
without changing CO percentage
7 . V e r i f y
picked up by tester corresponds to
runs smoothly.
g a s ex-
Allowed CO%
that CO percentage