Valmet 309 - Inspecting and Replacing Piston Rings

6t2 engln€
N4
N
0
P
R
s
T
5lt,
K
L
M
N
o
P
R
S
T
X
z
c
0
E
E
H
I
K
T4
N
o
P
s
T
v
x
Y
z
2070
-
2090
s
2O9O
-
2110
g
2l1o
-
2130
9
2130
-
2150 g
2l5O
-
2170 g
2l7O
-
2190 g
2l%
-
2210 g
2210
-
2230
g
2230
-
2250 g
2250
-
2270
g
4ll and
6ll englnos
Wel
ght
2190
-
2210
g
2210
-
2230
g
2230
-
2250
g
2250
-
2270
9
2270
-
2290
9
2290
-
2310
9
23lO
-
2330
g
2330
-
2t5O
9
2350
-
2310
g
2370
-
2t9O
g
2390
-
2410
g
2410
-
2430
I
2430
-
2450
g
2450
-
2410
I
2470
-
2490
9
2490
-
2510
g
2510
-
25tO
g
2530
-
2550 g
2550
-
2570
9
2510
-
2590
g
2190
-
2610
g
Hel
ght
2911
-
29
2991
-
3010
Jol I
-
3030
totl
-
3050
30rt
-
3010
107't
-
3090
J09t
-
Jt 10
l l
-
3130
lljl
-
150
ll5l
-
ll70
lr
Tl
-
Jl90
3191
-
3210
3211
-
3230
3231
-
3250
3251
-
3270
3211
-
3290
3291
-
3t10
3311
-
3330
33tt
-
3350
3351
-
3370
8360 36566
4360 36561
4360 36564
4360 36569
8360 36170
4560 36571
4360 36572
8160 581 l6
8160 J8l l7
8560 381 l8
Spare
pcrt
no
4361 36573
a36l 36514
a361 36515
a361 36516
4361 36117
8361 36518
4361 36179
8361 36580
8J6l 16581
8361
36582
8361 t6r83
at61 36544
8161
36545
8J6l 16586
8361 36141
8561 16588
8161
36549
8361
36590
8361 36591
4361 36592
8361 36593
Spare
pcrt
no
8t6t ta1
8t63 3A796
8363 3879-7
8363 3A194
8361 34799
8J6l J8800
8l6J 18801
8363 18802
8J6J 1880J
8l6i 18804
8J6J
18805
8161 18806
8J6J 18807
8161 18808
856J J8809
8l6J 38810
816l l88l I
a3$ 3ABl2
8561 l88r
J
836J J8814
INSPECTII{G AND REPLACI
NG THE PISTON
RINGS
Use
pls+on
rlng
pllers
lA360 91333, fo
remove
ihe rlngs.
Do no+
spread tho rlngs more than
ls
necessary to
remove +hem.
lf
you
ln+end lo re-
fl+
ihs
same
rings,
ensure +haf ih€y
wlll
be
placed
ln thelr orlglnal posl+lons.
2.
Clean
ihe
rlng
grooves
carefully. Measure
the
plston
rlng
slde
clearance In l+s
groove.
The
clearance
must
be less fhan
0,15 nm.
De+ermlne
whether
the slde
clearance ls due +o
rlng or
groove
wear
and
replace
the rlngs
or
ihe
plsfons
as
well, lf
necessary.
a
4-14
J. Place the rlng In fhe cyllnd6r, adjusilng ll
perpendlcular
+o fhe
cyllnder axls, and
measure
iho rlng
cap. Thls may nof exceed I mr.