Rotax 912-UL - Page 71

9)
Wear
limits:
all dimensions
in mm
designation
crankcase/crankshaft
crankcase bore
with
bearing
halves fined
crankshaft
joumals
radial
clearance
bcaring
slceve in
gcarbox
joumal,
pto
end
radial clcarance
bearing sleeve
in ignition
cover
joumal,
magneto
end
radial
clcarancc
bcaring
slccve
:
crank
pin
radial clearance
At
ccntre
atbcaring
joumal23
Q
nd326
axi
al clcaranrc of cranksliaft
thickncss of thrust rings
,
,
i_.
.:i
Camshaft
camshaft
bcaring
bore
joumal (both
cnds and cenUe)
radial
clearance
out ofround
dimcnsion over cam head
cam
lift
,.
.
,i.ir
-.
valic lift
;!i.
.
Cylinderandpiston
r!+i
:
-^
cylindcr bore
'.
i;illl's
ovality
conicity
piston
athcight 15
(r€d)
piston
atheight 15
Grcen)
piston pin
piston
pin
bore
piston
pin
clcarance,
pin
in
piston
con-rod
bore, small
end
clearane,
pin
in
con-rod
Dcllcction
of crankshaft supported
on the outcr
main bcaring:
and
inch
,
new
mm
(in.)
48,13+48,14
( +
44,474+ 4,5U2
(1J51 +
4,45
+44A6 (
+
0,C2'5+ 0,06
(0,001+
28,42
+28,03
(
+
27,9
+28,N
(
+
O,U2+
0,04
(
-+
32,V2+32,O3
( +
31,9+32,ffi
(
+
0,4+
0,04
(
+
34,065+ Y,@O
(1,341+
!l,M
+?1,05
(1,340+
0,015+
0,050
(0,001+
0,04
(0,m1)
0,ol
(0,m1)
0,08
+
0,32
(0,003
+
2,3L
+
2,36
(0,091+
wear limit
mm
(in)
48,17
(1,897)
4./'56
(1,754)
4N
0,748)
0,12
(0,m5)
28,10
(1,106)
27,95
(1,101)
0,12
(0,005)
32,10
(r2&)
31,95
(1258)
0,12
(0,005)
y,l4
(1,y4)
34,00
(1,339)
0,12
(0,005)
1,895)
1,752)
1,750)
0,002)
1,103)
l,lvz)
0,001)
1,261)
0,260)
0,001)
l,y2)
1,341)
0,002)
0,012)
0,093)
1,182)
1,180)
0,002)
0,002)
Q274)
(0251)
(0,369)
3,131)
0,001)
0,001)
3,130)
3,130)
0,787)
0,787)
0,001)
0,788)
0,001)
0,06
0,06
050
2,25
(0,m2)
(0,002)
(0,020)
(0,089)
30,0
+
3O,A2l
29,967+29,98
0,02
+
0,054
0,Ol
+
0,05
32,37
6,37
9,37
79,50
+79,524
0,000+ 0,m7
0,000+ 0,030
79A95+79,505
79,50
+
79,515
20,001+ 20,05
19,992+ 19,*)s
0,006+ 0,013
20,010+ 20,m0
0,015+ 0,028
(1,181 +
(+
(0,001 +
(+
(3,130 +
(+
(+
(+
(+
(+
(+
(+
(+
(+
30,1
(1,185)
29,y2
(1,t78)
0,12
(0,005)
0,08
(0,003)
3220
(1268)
6,20
(0244)
9,13
(0,356)
79,58
(3,133)
0,05
(0,m2)
0,06
(0,002)
79A2
(3,t27)
7942
Q,t27)
20,u
(0J89)
19,97
(0J86)
0,05
(0,m2)
20,u
(0,789)
0,05
(0,002)