Service Manual

CAMSHAFT/CRANKSHAFT 7-9
Crankcase
•
Be sure to replace any oil seal with a new one if removed.
○
Apply mineral oil to the crankshaft oil seal outside.
○
Install the oil seal so that the marks [A] face out.
○
Thoroughly pack high-temperature grease to 60% volume
into the space [B] between the dust lip [C] and seal lip [D].
Press in the new oil seal using a press or suitable tools
until it is flush with flange surface [E] or maximum 1 mm
(0.04 in.) lower than the flange surface. Do not damage
the seal lip.
Flywheel Side [F]
•
Install the removed parts (see appropriate chapters).
Crankcase Inspection
•
Measure the inside diameter [A] of the crankshaft in-
sert on the crankcase at several points. Replace the
crankcase if the inside diameter is more than the service
limit.
Crankshaft Bearing Inside Diameter
Service Limit: 40.035 mm (1.576 in.)
Crankcase and Crankcase Cover Cleaning
•
Remove:
Oil Pump and Relief Valve (see Oil Pump, Relief Valve
Removal in the Lubrication System chapter)
Camshaft and Tappets (see Camshaft, Tappet Removal)
Crankshaft (see Crankshaft Removal)
Breather Valve and Cover (see Breather Valve Removal)
•
Clean up the crankcase and cover with a high-flash point
solvent, and blow out any foreign particles that may be in
the pockets inside of the crankcase with compressed air.
WARNING
Clean the crankcase and cover in a well-ventilated
area, and take care that there is no spark or flame
anywhere near the working area. Because of the
danger of highly flammable liquids, do not use
gasoline or low-flash point solvents.