10.4
Section 10
Reassembly
Figure 10-10. Checking Outlet Seal Passage
Opening (Open Style).
Figure 10-13. Installing Crank Gear Key.
2. Lubricate the PTO end bearing surfaces of the
crankshaft and crankcase with oil. Apply a small
amount of oil or grease to the lips of the PTO oil
seal and to the guide shoe pin. Cover PTO
keyway with tape to prevent cutting oil seal during
installation.
3. Carefully install the crankshaft into the
crankcase, through the PTO seal, and seat fully
into place. Rotate the crankshaft so that the
journal for the connecting rod is away from the
cylinder. See Figure 10-14.
Figure 10-11. Torquing Oil Pump Mounting
Screws.
Install Crankshaft and Balance Weight
1. Assemble the crankshaft balance weight if
removed from the crankshaft.
a. Lubricate the crankshaft eccentrics and the
balance weight bearing surfaces with oil.
b. Install the two balance weight halves onto the
crankshaft eccentrics as marked or originally
installed.
c. Align the weights and install the balance
weight screw, through the mounting holes,
from the PTO side. Thread it into the guide pin
outside the weight on the flywheel side. Hold
the guide pin with a wrench, and torque the
screw to 10 N·m (90 in. lb.). See Figure
10-12. Do not hold, or damage the outside
diameter (O.D.) of the guide pin.
Figure 10-12. Assembling Balance Weight to
Crankshaft.
d. Carefully install crank gear key in keyway. See
Figure 10-13.
3/32" Allen Wrench
Intake Tube
Oil Pump
Oil Passage Seal
PTO Side
Guide Pin
Crank Gear Key
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