Valmet 309 - Technical Data (Piston, Piston Rings, and Piston Pin)

TECHN ICAL DATA
('I)
(reject
llmlt
of
pa.t
sfafed In
brackeis aft€r'rotlng)
Plston,
plslon
rlngs and
plston pln
Itlln dlstance betwoen
plston
and
cyl head,
measured wlttt lead
vllre through
I nJector
holo
P I
ston
d
lameie.
,09
P In bore In
D
I sion
. . . .
.
. . . . .
Plston pln
d I ameter . . . . . , . .
l{ldth of
rlng
-
ls+
groove
-
2nd
gr@ve
-
lrd
groove
P
I ston r Ing
-
lsi
r ing
gr@ves:
0,900...1,150
see
lnstructlons,
polni
4 2
G
16, 001...16,009
f5,995..
.16,000
2,58O.,.2,600
i,040...J,060
4,040..,4,060
o,o9.,.o,122
o, 05. ..0,082
0,05,
. .0,085
0, l5
Slde clearancos
of
plstoo
rlngs ln +helr
gr@ves:
-
lst
groove,
hard chrome-p laied compresslon r1n9...,........
-
2nd
gr@ve,
compresslon r I
n
g
. . . . . . . , . . . .
-
Jrd
groove,
ol I rlng ........
-
re
ieqt llmlt
helght
(
In dlrecilc.r of cyllnder):
....2,474.-.2,490
-
2nd r
Ing
2,978...2,9
-
f.d rfng
....
3,975...1,990
Pls+on rlng gap
(elth
pls+on
ready fltted In cyllndar):
-
campresslon
r
Ings
...........
0,4...0,6
-
ol I rlng .,.
0,25...0,55
-
rBject llml+ ..............,.
1,0
5
,
4
,
6
Pln
bore
In
plsion
I
)
40,0m...40,006
Plston pin
d larEi-er
........
...
19,995...40,000
t{
| dfh
-
lsl'
-
2nd
-
frd
I{ldth
-
lst
-
2nd
-
Jrd
of r ln9
gaoove
gr@ve
groove
gr@ves:
2,560...2,540
3,0ro...1,050
5,040...5,060
0,07...0,102
0,04...0,072
0,05...0,082
0, 15
2,474...2,490
2,97a,..2,990
4,978. . .4,990
0,4...0,6
0,J...0,45
1,0
40,003. ..40,009
,14,001.
..44,009
41,994...44,000
2,580...2,600
l, 040. . . r,
060
5,040. . ,5,060
0,09.. .0,122
0,05...0,082
0,05...0,082
0, 15
Slde
clearances of
plston
rlngs In thelr
gr@ves:
-
lst
groove,
hard chrohe-plated compresslon r I
n
g
. . . . , . . . .
.
. .
-
2nd
grcove,
compresslon rlng
............
-
Jrd
groove,
oll rlng ,....,..
-
rej
eqt
llnlf
P lsioi rlng
helght
(
ln d lrecilon
of
cy
I Inder):
-
lst rlng
-
2nd rlng
-
lrd
ring
Plstoo
rlng gap
(*lth
plsion
ready fl+tod ln
cyllnder):
-
compress
lon
r I n
95
. . , . . . , . . . .
-
oll
rlng
-
reject limlt ............
lltn
Ott OSe englne
(plsfon
816l IO?OO) by
the lck
rlng
grcove
612
Pln
bore in
plsion
,......,.,
P
lsion
pln
dlarEler ........
of
r Ing
gr@ves:
groove
. . . . . .
. . . . . r r . r . .
gr@ve
...r..,......r
groove
.
.
. . . . . . . .
. . . .
Slde
clearances
of plsfoo .lngs
ln
ihelr
gr@ves:
-
lsf groove,
hard chrone-plafed
compresslon
r I ng
. . . .
. . . . .
. . .
-
2nd
grcove,
comprosslon rlng ............
-
)ao
gaoove,
ol I rlng .....,..
-
rej ecf llm
lt