Weifang 495 - Page 19

(3)Urieven, ,fuel delivery to each
cylinder'.
(4) Fuel i1)jection pipe cracks or
pipe connection gets loosen.
(S)Water enters into cylinder.
(6 )Plunger spring breaks.
(7)Fuel spray of one or two in-
jectors' is' n'otwell iitomized.
( 8) Insufficient compression
pressure in ontor the--cylinder.
( 9) Plunger control arm
loosens.
2). Rough runing of the engine
( 1) Fuel injecting pressure 'of
the injector varies.
( 2 )'The nozzle ,assembly "gets
strck.
(3 ) The~c6nttol-:for'k on control
rod of injection pump gets
loosen.
(3~) Check'.and·,adjust th~,~ inje~
tion pump' ona'speeial~'l.~.;te8t
stand.
,( 4-) Replace th:e' "fuel',injecttQn
pipe, or tighten the cq,nn~ti(i)n
nut-tor eliminate· the leakag~ ..
'(f5·.) Tig,b tell; tile cylinder:' htad
,;flU't,S £irst.lf:;:it'·riS~A.;·1n . Yaiti:.'2·:,th·~
cylinder head, cylinder liners
should be inspected·~
(6)Replace the spring.
(7) Cheek ,":aa'just ~or repalce the
no.zzle assembly.
( 8) Reme by it according to, ";the
procedure specified in the sec-
tion of" Insufficient compresion
,preSSure in.cylinders "later.
(9)Replace the plunger.
(l.)Checkand adiust"the~,fuelin
jecting pressure.
(2 ) Wash, inspeG~!"and:lap;:it ' .. Wit}l
lubricating oil, or replace it if
necessary.
(3 )'Dismantle"check and'~'~djust
the injection .pump·{on-asp~cial
test bench).
. ,9.9