Lotus TURBO ESPRIT Service Manual page 371

SECTION LC
Page
7 3
10.
Switch analyser to sample mode and check readings.
Note: Do not touch idle adiustment screws until
CO
reading has stabilised.
CO
reading should be between 0.2
-
1
.2%. I f higher or lower levels are found,
move each mixture screw
o f
a turn
i n
or out as the reading dictates. Check
the
CO
reading and repeat procedure until correct specification is achieved.
A
balance between
CO
and
HC
i s required, and the Hexane level should be
below 550 ppm for a 'new' engine and below
350
ppm for a 'run-in' engine.
11
.
Disconnect manometer and adaptors, and replace blanking screws.
F i t
new
anti-tamper caps where necessary. Ersure a l l fuel pipe connections are
secure. Disconnect exhaust sample probe, and refit blanking plug securely.
LC.6
-
CARBURETTOR MOUNT1
NG
. - . - - .
-
The spacer plates and
'0'
rings used at this joint act as insulaton to absorb vibration
and prevent frothing of fuel i n the float chambers.
It
i s essential that the carburettor
mountings are not overtightened, 3 s the
'0'
rings may be displaced with a resultant
air leak.
A
uniform gap must be maintained between carburettor and spacer plate, and between
spacer plate and manifold a s shown.
spacer plate/manifold
=
2.2
mm (0.090")