Lombardini CHD series - Bearing Clearance Checks; Check clearance between main bearings and journals; Thrust bearings

- 43 - Workshop Manual LDW CHD _ cod. 1.5302.345 - 6° ed_rev. 05
LDW
1503/2004
LDW
1603/2204
2004-T/2204-T
75
73
74
76
4
Thrust bearings
The main bearing, the crankshaft bearing and the thrust washers
have been unied as from engine serial number 7306062 for
LDW1503, from serial number 7303552 for LDW 2004 and from
serial number 7305782 for LDW 2004/T.
Pre-andpost-modicationsinglepartsarenotinterchangeable.
Check clearance between main bearings and journals
Use "Perfect Circle Plastigage" A and position it with a few
drops of oil at the center of the half bearing.
 Tighten bolts to 120 Nm.
Determine clearance by measuring the squeezed portion of the
plastigage with the indexed scale supplied.
 For clearance between main journals, connecting rod big
endjournalsandthecorrespondingbearingsg79.
Important
When replacing bearings make sure that the lower half is
kept separate from the upper one.
Disassembly / Reassembly