Baudoulin 4M11G Maintenance Manual page 47

Maintenance M Manual of 4M1
range, the cylinde
the va alve sink do oes not exce
then ch heck the se
abnorm mal damage
② Clearanc ce between v
②
T The inside d diameter of
the val lve, and if t
to wea ar, it will r result in inf
diesel engine ope eration. The
inside micromete er, as shown
outsid e micromet
guidei s (0.03~0.0 06) mm. If
shall b be replaced
2) ) Cylinder r head gaske
U Upon detecti
and rep place the cy
Check wh hether there
Regard dless of pro oblems at th
being disassemble
3) ) Valve ste
B Before disas ssembling, o
damag ge and chec ck the sealin
or not, , replace wi
4.2.3.4 C Cylinder H
1) ) Pre-assem
2) ) Assembl
1 Series Diesel l Engine For La
er head shal ll be replace
eed the perm
aling surfac ce of the va
e to the valv ve and the se
T Table 4- 3 Re
Re
Intake v valve
Exhaust t valve
valve stem a
the valve g
the clearanc ce of valve
fluence on
e inside diam
n in Figure
ter. Specifie ed range for
measured v
to ensure th he reliability
Figure 4
et
ion of air, w water, or oil
ylinder head d gasket.
e is visible e damage t
he cylinder
ed.
em seal
observe the
ng sleeve sp
ith new valv ve stem seal
ead Assem mbly Proc
mble the int take and exh
le the cylind der head gas
and Power Gene erators
ed to ensure e the reliabi
missible va alue, disasse
alve seat rin ng. Check w
ealing surfa ace of the va
equired Valve of Valve Sin
quired Valv ve Sink Valu
1 .0~1.45
1 .0~1.45
and valve g guide
guide is the contact sur
stem and va alve guide e
guiding eff fect of the
meter of th e valve gui
e. Measure the outside
r clearance of intake a
value is ou utside the sp
y of diesel e engine opera
4-5InsideMic crometer
l leakage at cylinder he
to the cyli inder head
head gaske et, it should
rubber lips s of valve st
pring for in ntactness. N
ling sleeve a after the dis
edures
haust valve subassemb
sket. It's pro ohibited to r
39
ility of dies sel engine o
emble the v valve for ch
whether ther e is apparen
alve seat rin ng.
nk
ues (mm)
face betwee en the valve
exceeds the permissibl
valve, redu ucing reliab
de can be m measured by
e diameter of valve g
and exhaust t valve stem
pecified ran nge, the cyl
ation.
ead gasket, it's necessa
gasket an nd analyze
be replaced d with a new
tem sealing sleeve for p
No matter an ny problem
sassembling g.
bly.
reuse the cy ylinder head
operation. If f
hecking and d
nt wear and d
e guide and d
e value due e
bility of the e
y use of an n
guide by an n
m and valve e
linder head d
ary to check k
the cause. .
w one after r
presence of f
is detected d
d gasket.