Manuale Officina LGW 523-627 - lombardini service

4Disassembly / ReassemblyOil pan, removalDanger - Attention- The used engine oil can cause skin-cancer if kept frequentlyin contact for prolonged periods.- If contact with oil cannot be avoided, wash carefully yourhands with water and soap as soon as possible.- Do not disperse the oil in the ambient, as it has a highpollution power.97 98Remove the fixing screws.Insert a spacer 1 in the forward and rear main bearings.Detach the silicon from the main bearing rubber bulb seals.When re-mounting apply Silicone " Dow Corning 7091" as shownin the picture. Tighten the screws at a torque of 10 Nm.Before starting the engine make sure that:1) the oil drain plug is tightened correctly2) the engine has been refilled with the prescribed quantity of oil (seepage 26).PISTONRemove the connecting rod big end cap.Remove the piston-connecting rod assembly.Note: The LDW 502’s piston is different from the LDW 602 interms of its combustion chamber.The LDW 1204/T piston is different from that of the LDW1204 in term of its cooling nozzle’s slot bleed and an insertin the first section’s hollow.The Ricardo type of combustion chamber is used for LDW702-1003-1404 engines.99100Stop pin rings, dismounting and remountingExtract the ring inserting a pointed tool in hollow A.On remounting, insert rings with the points turned downwards insidethe corners ( α = 15°).101102- 52 - FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06