Lotus TURBO ESPRIT Service Manual page 421

SECTION LO
Page 49
L-FUELBY-PASSVALVE
With the engine at normal running temperature, remove the valve from the air filter
box, and observe the valve action on closed throttle engine overun conditiom
.
If
the valve does 'not open, check electrical feed and refer to electrical sections
LD
.
26/27/28.
Check the closed valve position by blowing down the pipe.
M
-
THROTTLE
SACKING CAPSULE
With engine idling a t normal operating temperature, check f i n t that idle speed i s
correct
@
950
50 rpm. Do not adjust without f i n t referring to Section LD
23.
a
Capsule Rod Clamp Screw
Bridge connections to high temperature switch in inlet manifold (use a spare fuse)
to activate the capsule. Engine speed should hold at 1300 to 1500 rpm. Adjust
i f
necessary at the clamp between capsule rod and throttle lever.
Remove electrical bridge and re-check idle speed.
N
-
THROTTLE
POSITION
SWITCH
Connect continuity meter TOOOT0568 to the throttle position switch. With the throttles
shut the meter should indicate continuity by buzzing, which should stop at the smallest
throttle opening. A t about
3 0 °
of throttle angle, continuity should again be made.
I T
IS ESSENTIAL
TO
SLACKEN THE THROTTLE
POSITION
SWITCH MOUNTING
SCREWS
BEFORE
ADJUSTING
ENGINE
IDLE SPEED. IMBALANCE
OF
THE
THROTTLE BUTTERFLIES
MAY
OTHERWISE OCCUR.
\
Throttle Position
Mounting Screws
Switch