Lotus TURBO ESPRIT Service Manual page 419

SECTION LD
Refitting fuel injectors:
Emure
'0'
r i n g are undamaged. Lubricate the manifold injector hole with a
silicone spray and carefully slide the injector down the hole pressing i t away
from the air rail cross-drilling hole.
Pvsh the larger
'0'
ring into its recess using a tube of suitable diameter so, that
pressure i s applied directly to the
'0'
ring.
Fit
and
tighten the injector retaining clamp.
Torque tighten fuel pipe connection to
2.0
kgf .m
(15
Ibf .ft
.).
H
-
BASIC MIXTURE ADJUSTMENT
Refer to section
LD 23
to establish whether the basic mixture setting requires
adjustment, or some other component i s the cause of an out of specification
duty cycle reading.
I f adjustment
i s
required:
Mixture Adjustment Screw
Remove the anti-tamper plug from the mixture control unit, and use a
3
mrn allen
key to turn the airflow sensor lever adjusting screw clockwise to reduce the duty
cycle rate, or counterclockwise to increase the duty cycle meter reading. Turn
only a small amount a t a time, and blank off the access hole (with finger) between
adjustments. 'Blip' the throttle and re-check duty cycle reading.
When adjustment i s completed, refit the anti tamper plug to the access hole. Repeat
LD
23
checking procedure.
If
a newmixture control unit, or component thereof, is fitted to the engine, or
if,
for whatever other reason
the
setting-of the basic mixture adiustment screw is unknown
or i n doubt, i t i s essential to carry out the following procedure to prevent the possibility
o f the engine hydraulic locking and causing extersive internal damage.
Disconnect one injector pipe and
fit
a slave injector, placing into a glass jar or
,
graduate. Trip inertia switch. Remove fuel pump control relays and f i t electrical
.
..
test bridges TOOOT0569 into relay bases
.
~ernove anti-tamper plug from mixture adjustment screw access hole.
Press down inertia switch and briefly press down airflow semor to prime fuel
inlector.