Lotus TURBO ESPRIT Service Manual page 368

Page 70
SECTION LC
LC.3
-
FUEL CONTROL PRESSURE
1
.
Connect fuel pressure test gauge as shown below.
n
FUEL
SUPPLY TO CARBURETTORS
FUEL PRESSURE
REGULATOR
SCREW
F R E S ~ J R E TEST GAUGE KIT
LOTUS
PART
NO. TOOT0500
Switch on ignition and check fuel pressure
=
4.0
-
4.5
p
.s
.i.
I f outside specification,
remove anti-tamper plug from Fuel pressure regulator adjustment screw, and adjust as
necessary.
If
the pressure reading is too high, and cannot readily be adjusted to specification, a
0
restriction i n the return line
is
indicated, Rectify as necessary.
If
the pressure reading i s too low, and cannot readily be adjusted to specification, a
restriction i n the supply line, or Faulty fuel pump is indicated.
Check for an unrestricted supply to the fuel pump, and for fuel filter restriction.
Test fuel pump
2 .
Start engine and allow to reach normal running tempemture,
Check fuel pressure at the regulator.
This
should be lower than
3.5
p
.si,
at
idle
+
(950
-
50
rpm)
.
I f above specification, check that the micro-switch o n the front
o f the front carburettor i s activated.
If
not, rotate theswitch down towmds the
lever
until switch contact
i s
made.