Gravely Convertible 10 Shop Manual page 40

Figure 38 Pressing Bearing In
Bearing Plate
7. Piston and Rod Assembly
a.
Assemble piston to connecting rod and secure piston pin with retainer rings. Always use new
retainer rings. Be sure retainer rings are fully engaged in grooves in piston bosses.
b. After making sure rings are in proper position in correct grooves, oil complete assembly, stagger
ring gaps so they are not in line and insert complete assembly into cylinder bore. Be sure
connecting rod marking is toward flywheel side of engine. Use a ring compressor to prevent ring
breakage during installation. Gently push piston into bore with hammer handle - do not pound.
8. Attaching Rod to Crankshaft
a.
After piston assembly is installed, place block on end and oil connecting rod and crank pin.
b. It is important that marks on connecting rod and cap line up and face flywheel end of engine.
(See Figure 42)
c.
Rod cap, lock or lock washers and cap screws are then attached to connecting rod. Use a torque
wrench to tighten cap screws to proper torque value as stated in Clearance Section.
d. If locking tabs are used, bend tabs to lock cap screws.
Figure 41 Installing Piston - Ring Assembly
Figure 39 Installing Bearing Plate
40
Figure 40 Crankshaft End Clearance
Figure 42 Installing Connecting Rod Cap Screw