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2781a
Gasket surface flat within
0.006 in. (0.15 mm)
Figure 3-29. Checking Gasket Surfaces
Measuring Cylinder Bore
1.
Remove any burrs from the cylinder gasket surfaces.
2.
See
Figure 3-30.
Install a head and base gasket, and
CYLINDER TORQUE PLATES (Part No. HD-33446A)
and
TORQUE PLATE BOLTS (Part No. HD-33446-86).
Tighten the bolts using the same method used when
installing the cylinder head screws. See
HEAD, INSTALLATION
on
3.
Take cylinder bore measurement in ring path, starting
about 1/2 in. (13 mm) from top of cylinder, measuring
from front to rear and then side to side. Record readings.
4.
Repeat measurement at center and then at bottom of
ring path. Record readings. This process will determine if
cylinder is out-of-round (or "egged") and will also show
any cylinder taper or bulge.
5.
See
Table 3-6.
If cylinder is not scuffed or scored and is
within service limit, see
TON
on
page
3-25.
3-24
CYLINDER
page
3-20.
FITTING CYLINDER TO PIS-
www.PlanDeGraissage.org
2782a
Figure 3-30. Measuring Cylinder Bore Using Torque
Plates (Part No. HD-33446A)
Table 3-6. 1200cc Cylinder Bore
Service Wear Limits
BORE SIZES
IN.
Standard Bore
3.5008
0.005 in. OS bore
3.5050
(0.13 mm)
0.010 in. OS bore
3.5100
(0.25 mm)
0.020 in. OS bore
3.5200
(0.51 mm)
0.030 in. OS bore
3.5300
(0.76 mm)
MM
88.920
89.027
89.154
89.408
89.662
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