MOTO GUZZI V1000 G5 Workshop Manual page 51

Crankpln diameter · classes .. A .. and .. S .. (see fig. 57
and drawing fig.
63)
GRADING
Class .. A ..
Blue mark on shoulder,
drive side
Class .. B ..
White mark on shoulder,
drive side
Sushlng-plston pin clearance
110 OF BUSH ING
AFTER PRESSING
IN AND REAM ING
PISTON PIN
DIAMETER
ORIGINAL DIAMETER
44.008·44.014 mm
(1 .7326-1.7328")
44.014·44.020
mm
(1 .7328-1.7331")
PIN·BUSHING
CLEARANCE
22.025 + 22.045
mm
(.8671
+
8678" )
21.994
(.8659 ~)
21.998 (.8660")
0.027-0.051 mm
(.0010-.0020M)
Checking parallelism of axis
Before checking the con-rods, ensu re that they are
.. square .. or in other words that the big and small
ends are parallel to each other.
Any eventual deformation can be rectified by means
of a fork lever. forcing on the con-rod stem.
Maximum permissible offset of the small and big end
axis, as measured at a distance of 200 mm (7.876")
should be ± 0.10 mm (.OO39"-fig . 60).
12.16
FITTING THE CON·RODS ON CRANKSHAFT
Bearing-crank pin clearance on assembly goes from
a minimum of 0.050 mm (.0019") to a maximum of
0.085 mm (.0032") . See dwg fig.
sa.
Con-rad-crankshaft clearance is 0 ,30-0,50 mm (.011·
.019).
See fig,
62.
Fit the con-rod on the crankshaft and tighten the
nuts using a torque wrench loaded to 4.6-4.8 kgm
(33-35 ft . Ibs) . (See fig. 64) .
Fig . 65 shows the dismantled con-rod assembly. For
measurements see fig.
sa.
NS Looking at the engine from the clutch side,
the milled surfaces of the con-rods and caps have
to be on the same side (" B" in fig. 61) .
12.17 CRANKSHAFT
Check crankpin surfaces. If deeply scored or ovaH·
zed . the crankpin should be re-ground to any of the
UIS U/S UIS
O. ~mm
0.508 mm 0.76Z mm
(.010" )
(·1t2O' 1
(.030")
43.7S4-43.766 43.500-43.512
43.246-43.258 mm
(1 .722S·1.723") (1 .712·1 .7130") (1 .7025-1 .7030"')
139.975+ 140.025
mm
(5.5107+ 5.5127 .... )
Max parallelism
and
complanarily diffe-
rence
between both
axi s measured
at
200
mm (7.874") ::t
0,10 (.0039")
Selection
Grading " A .
Blue
mark
on
slem
Grading
" B.
White
mark
on stem
47,130+ 47.136 47. 136+ 47.142
(1 .8555 + 1.8557") (1.8557 + 1.8559")
49