Mitsubishi 4DQ50 Service Manual page 97

Limit of Use
Remedies
Remarks
Adjust with shims
Varies
1~m2per
0.1mm
shim thicKness.
of
Check wi tPo8anc1 tester.)at
~ust
inject in a straisht COne
approx.
-Wa
of gas
01
i
empe - of fine spray wi thout ribble
rature). ash in gas oil. f
and
tmder gradual Wcl ication
cleaning not effective, replace of pressure ,make t
ott Ie
nozzle ti
ps.
injection .
Wash or replace nozzle tips.
.
~!n~~l~o~~r~i~fo~~ratched,
J
Udge from. (u scnarge
oressure test.
Juige
f~~t
air-tightnesl
+0.2
Overall pIa!: less than
O.
-0.075
Ditto left
With discharge port plugged up,
apply 2Iqv'cm% of air pressure;
then put whole PIJI11) in gas oi 1.
Moving priming pump handle at
about 60 strokes per min. ,see
how many strokes required to
f4ar~
yi acharging. Suction
ad . . m
Rtmning injection Pimp at 150
r.p
olD.
see how much time
required. for feed pump to start
discharginlZ.
Di tto left.
Measure at full di scharge wi th
injection pump running at 600
r.ri .m.
1.L'!;t~asure
at. 1
~~cm'of
del iver'J
press~~e wlf~d Je~Jion ptlllp
rUDlun a t . r.
.M.
See if roughened in surface. too
-0.2
Replace can shaft.
+0.25
Adjust wi th shims
1 " " , . .
11 play:Is,
Replace tappet complete.
than 0.3
-0.075
- 89-