Manuale Officina LGW 523-627 - lombardini service

4Disassembly / ReassemblyCrankcase breather LDW 502For LDW 602-702-903-1003-1204-1204/T-1404 engines, the exhaustgases exit from the cylinder head cover, see Fig. 53, 54.In the LDW 502 engine the exhaust gases exit directly from thecrankcase via cover 1.Remove the cover, check the integrity of the air valve and oildecanting wire gauze.59Valve / Rocker arm clearanceImportantSetting should be performed when the engine is cold.Bring each cylinder piston to top dead center on the compressionstroke and set clearance A at 0,20 mm for both the intake andexhaust valves.For greater convenience, clearance check B is accepted. In this casethe value is 0.15 mm.6061Injection pump control rodDepending on the engine model, the injection pump control rod willlink two, three, or four injectors to the engine governor.Screws 1 and 2 are pivoted on the delivery control lever of eachpump/injector B, unscrew the screws and remove spring 3.When refitting tighten the screws 1 and 2 at a torque of 1,1 Nmand make sure that they stop on lever B of each pump/injector andnot on rod A.6263 To carry out the delivery equalisation of the injection pumps seepage 83. To carry out the timing of the injection pumps and speedgovernor see page 95Fuel railWhen removing the fuel feeding pumps A, with the rail holders B,pay attention that the sealing O-rings C remain in their seats. When refitting tighten the rail holder screws at a torque of 4 Nm.64- 44 - FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06