Crankshaft; Main Bearings - Flywheel Side; Crankshaft End Float - Kohler KD 425-2 Workshop Manual

XIII
ENGINE ASSEMBLY
60
61
62
64
- 32 -
63
65

Crankshaft

Fit the crankshaft into the crankcase using tool p.n. 00365R0910
as shown in figure 60; make sure that the bearing oil passages are
matched to the crankcase oil passages.
Torque the bearing screws (fig. 61) to :
kgm 2,2 (Nm 21,6)

Main bearings - flywheel side

Fit the bush to the bearing carriern using a special tool of appropriate
diameter as shown in figure 62. Insert the bush arranging the groove
so that it is facing the internal side of the bearing and positioned ver-
tically.
Fit the oil seal ring to the bearing using a suitable diameter tubular
punch.
Fit the bearing into the crankcase after having first interposed an O-
ring between the contact surfaces (fig. 63). Torque the screws to:
kgm 2,2 ÷ 2,4 (Nm 21,6 ÷ 23,5)

Crankshaft end float

Install an 0.15 mm feeler gauge betwen the crankshaft shoulder and
the crankcase (flywheel side).
Use a screwdriver to force the crankshaft against its shoulder as
shown in figure 64. Pre-heat the timing gear to a temperature of
180 ÷ 200 °C and fit it onto the crankshaft pressing it down until it
comes into contact with the crankcase. Wait until the timing gear has
cooled down and then withdraw the feeler gauge and the screwdriver
and check end float (fig. 65), which must be within the range:
0,20 ÷ 0,30 mm (cast iron crankcase)
KD 425-2 Workshop Manual_cod. ED0053029360_1° ed_ rev. 00
0,10 ÷ 0,20 mm