Kohler KDI 1903M Workshop Manual page 113

4. Insert the 2 shoulder half-rings K,
between the crankshaft W and the upper
crankcase E (AB detail).
9.3.6 Lower crankcase
1. Check that the crankshaft half-bearings
are mounted correctly on the lower
crankcase F (AC detail).
2. Assemble the 2 shoulder half-rings AD
onto the lower crankcase F applying two
drops of oil to keep them in their seat.
3. Check that the coupling surfaces AE are
free from dirt and grit.
4. Spread a bead of Loctite 5660 (rif. AL) of
approx 1 mm thickness on the surface
AM of the upper crankshaft half C being
careful not to block the oil feed grooves
AG and the return oil sump AH.
5. Join the two crankshaft halves E and F
observing the guide pins AN.
Important
•
Failure to follow the bolting procedures
compromises the functionality of the
engine and can cause damage to people
and property.
6. Tighten the fastening screws strictly
following the sequence and the tightening
torque indicated.
Tightening sequence for 3 cylinders
Tightening Screws Torx M12x1,25 (from
the n° 1 to the n° 8):
CYCLE 1 - with a torque of 40 Nm;
CYCLE 2 - with a torque of 70 Nm;
CYCLE 3 - with a torque of 120 Nm.
Tightening Screws Torx M8 (from the n° 9 to the
n° 21):
CYCLE 4 - with a torque of 20Nm;
CYCLE 5 - with a torque of 35 Nm;
7. Perform the operations described in
8.4.2.
ASSEMBLY INFORMATION
Fig 9.7
Fig 9.8
3 Cylinders
Fig 9.9
Par.
9
113
EN