Crankshaft; Selection Of Crankshaft; Checking Weight For Engine Balancing - MOTO GUZZI 850 Le Mans II Workshop Manual

29.2 CRANKSHAFT (dwg n. 216)
C rankpln diameter:
ORIGINAl. CRANKP IN
SIZE mm
0.2:54
mm
(.010"1
44.008-44 .020 43.754-43.766
( 1 . 7325·1 .7330~ 1 ( 1 . 7225- 1 . 7230~ )
SELECTION OF CRANKSHAFT
ClASS . A_ CLASS .S.
lS I.,. mark al 1IY"'1>H1 _ I (WtIite me.1t III lI)'Wt'leeJ enet)
mm mm
44.008-44.014 44.01 4- 44.020
(1.7325, ' .732r) ( 1 . 7327 - 1 . 7330 ~ )
Crankpin - bearing clearance:
minimum 0.030 mm (.0011 " );
maximum 0.054 mm (.0021 ").
CHECK ING WEIGHT FOR ENGINE BAlANC ING
The con-rod complete with nuts and bolts should
be of same weight. Max permissible difference :
3 grams.
The c rankshaft is statica lly balanced by add ing
a weight of 1.586 -:- 1.616 kg (3.49-3.57 Ibs).
Shims dnron,e
OltO
-:1300
. .
mm
(.0059 · .01 18""J , /
i
37.975 .. 37.959
mm
E
0.4950 . 1.4943")
0
E
,
"
:;!
U / S 8EARING
a. - mm
(.02(1"1
43.500-43.512
( ' .7125- 1 . 7130~)
. 44.008 + 44.020 mm
tl ~25 . , .7330 "1
o~
-
--
~
Z
-r
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I
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Li' /
g,:
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,
,
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fi
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SEUCTIONS
3.910 + 53.9
l2.J247 . 2.J24
(lass " A" (loss " S "
S II t ' II'II""9
Bill' colllr Whit, clllllr
d'lIron(,
mark on shollldtr.
mllrk on shovlder.
min. 0.030 (.0011 ")
flywheel side
flywheel side mOll. 0.054 (.0021 ~)
44.008 + 44.014
mm 44.014 + 44.020 mm
(1 .7325 · 1.7327") 0 .7327 · 1.7330")
0-162
mm
(.030"1
43.246-43.258
( 1 . 7026·1 .7030 ~)
L-______________________________________________________________ -"
21.
159