Specifications

4M41 ENGINE -
Injection Nozzle
11B-15-8
CHECKING PRELIFT
(1) With the needle valve
13
fully lifted, release the handle
of the nozzle tester
B
. This causes the pipe pressure
to decrease with a concomitant drop in dial gauge reading
(needle valve lift).
D
: Amount of needle valve full lift
(2) Read the dial gauge when the 2nd spring
19
has stopped
acting, or when the needle valve
13
has stopped lowering
(at prelift level
E
), and ascertain that the reading is within
the specified limits of standard value.
Standard value: 0.05 - 0.07 mm
(3) Read the dial gauge with the needle valve
13
at the
prelift measuring point
F
(1st valve opening pressure +
approx. 1 MPa). (Observe the dial gauge while lowering
the pressure.)
(4) If the dial gauge reading deviates from the specified limits
of standard value, replace the pin
14
, lift piece
16
, spacer
15
, nozzle tip
12
and needle valve
13
with a Nozzle
Service Kit.
G
: Capsule (Zexel part No. 105019-1240)
Standard value: 0.05 - 0.07 mm
ADJUSTING 2ND VALVE OPENING PRESSURE
(1) After checking the prelift, operate the nozzle tester
B
and increase the pipe pressure to 34.3 - 44.1 MPa so
that the needle valve lifts fully.
(2) Release the handle of the nozzle tester
B
. The pipe
pressure will lower with a concomitant drop in dial gauge
reading (needle valve lift).
PWEE9409-D
E
Feb. 2000Mitsubishi Motors Corporation Added
Needle
valve
lift
(mm)
1st valve opening
pressure
Pipe pressure (MPa)
0
D
E
F
16
G
12
13
15
14
4ME0529
H
B
157954-3801
4ME0530