Operation Manual

CRANKSHAFT
5-80
EAS25630
INSTALLING THE CRANKSHAFT JOUR-
NAL BEARINGS
The following procedure applies to both of the
crankshaft journal bearings.
1. Attach:
• Crankshaft journal bearing “1”
TIP
Attach the crankshaft journal bearing to the
plane bearing installer “2”.
2. Install:
• Crankshaft journal bearing
TIP
• Align the projection “a” on the bearing with
the projection “b” on the crankcase.
• Place an iron plate “3” beneath the crank-
case and press fit until the end of the plain
bearing installer touches the iron plate.
EAS26150
INSTALLING THE CONNECTING RODS
1. Lubricate:
• Bolt threads
• Nut seats
(with the recommended lubricant)
2. Lubricate:
• Crankshaft pins
• Big end bearings inner surface
• Balancer big end bearings inner surface
(with the recommended lubricant)
3. Install:
• Big end bearings
• Connecting rods
• Connecting rod caps
(onto the crankshaft pins)
TIP
• Align the projections “a” on the big end bear-
ings with the notches “b” in the connecting
rods and connecting rod caps.
• Be sure to reinstall each big end bearing in
its original place.
• Make sure the “Y” marks “c” on the connect-
ing rods face towards the left side of the
crankshaft.
Bearing color code
1.Blue 2.Black 3.Brown
4.Green
Bearing thickness
Blue: 2.495–2.508 mm
(0.0982–0.0987 in)
Black: 2.491–2.504 mm
(0.0981–0.0986 in)
Brown: 2.487–2.500 mm
(0.0979–0.0984 in)
Green: 2.483–2.496 mm
(0.0978–0.0983 in)
Plane bearing installer
90890-04139
Recommended lubricant
Molybdenum disulfide oil
Recommended lubricant
Engine oil
New
New