Service Manual

7-8 CAMSHAFT/CRANKSHAFT
Crankcase
•
Check to see that the dowel pins [A], O-rings [B] and plas-
ticpipe[C]areinplaceonthecrankcase.
•
Install the crankcase cover and tighten the crankcase
cover bolts following the tightening sequence as shown
in the figure.
Torque - Crankcase Cover Bolts: 27.4 N·m (2.8 kgf·m, 20
ft·lb)
○
Do not turn one screw down completely before the others,
as it may cause the crankcase cover to warp.
•
Install the removed parts (see appropriate chapters).
Crankcase Cover Inspection
•
Measure the inside diameter
[A] of the crankshaft journal
bearing on the crankcase cover at several points. Re-
place the crankcase cover if the inside diameter is more
than the service limit.
Crankshaft Journal Shaft Bearing Inside Diameter
Service Limit: 40.005 mm (1.575 in.)
Crankcase Disassembly
•
Remove:
Crankcase Cover (see Crankcase Cover Removal)
Camshaft and Tappets (see Camshaft, Tappet Removal)
Crankshaft (see Crankshaft Removal)
•
Pry the crankshaft oil seal [A] with the suitable tool, and
remove it.
Crankcase Assembly
•
Remove the old gasket from the mating surfaces of the
crankcase and cover.
•
Using compressed air, blow out the oil passage in the
crankcase.
•
With a high-flash point solvent, clean off the mating sur-
faces of the crankcase and the cover, and wipe them dry.
WARNING
Clean the crankcase and cover in a well-ventilated
area, and take care that there are no sparks or flame
anywhere near the working area; this includes any
appliance with a pilot light. Do not use gasoline or
a low-flash point solvent to clean parts. A fire or
explosion could result.