Lotus TURBO ESPRIT Service Manual page 417

SECTION LD
Page
45
Open the stopcock and test the opening pressure by moving the lever slowly
(about
2
seconds' per stroke).
+
l
njector opening pressure:
3.5
-
0.6 Bar
If
the opening pressure
i s
outside. tolerance, replace the injection valve.
l
ndividual valves can be changed within a set.
5. Leakage test.
Open the stopcock, build the pressure up slowly to a value 0.5 Bar under
the opening pressure determined previosly and hold i t constant a t that
level. The injector must not drip for a t least 15 seconds.
6.
Chatter test, evaluationof spmy.
Move the lever back and forth at about
1
stroke per second.
As
this
i s
done,
the valve must chatter. N o drops o f fuel must form at the mouth of the valve.
The valve must not produce a "cord spray". Formation of a single-sided atomized
spray within an overall spray angle of about 35' i s permissible (see example given
i n illustmtiow).
Good spray forma tion ,
single-sided
but
nevertheless good spmy formation.