Kohler KDI 2504TM Workshop Manual page 116

9
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 Screws Torx M12x1,25 (from the n° 1 to the
n° 10):
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° 11 to the n°
27):
CYCLE 4 - with a torque of 20Nm;
CYCLE 5 - with a torque of 35 Nm;
7. Perform the operations described in
8. Check that crankshaft W rotates smoothly.
9.3.7 Piston rings
1. Perform the operations described in
2. Put the scraper ring AP onto the piston AQ.
3. Put the 2° seal ring AR on the piston AQ.
4. Put the 1° seal ring AS onto the piston AQ.
EN 116
ASSEMBLY INFORMATION
Par. 8.4.2.
Par. 8.5.3.
Fig 9.8
Fig 9.9