13.07.2015 Views

Manuale Officina LGW 523-627 - lombardini service

Manuale Officina LGW 523-627 - lombardini service

Manuale Officina LGW 523-627 - lombardini service

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4Disassembly / ReassemblyValve seats and housings - DimensionsLDWmmA 34,020÷34,045502-602-903-1204-1204/Tαα1B 34,106÷34,115C 30,020÷30,04144°53' ÷ 45° 59° 53' ÷ 60°87D 30,108÷30,116LDWmmA 35,220÷35,245702 - 1003 - 1404αα1B 35,306÷35,315C 31,220÷31,24144°53' ÷ 45° 59° 53' ÷ 60°D 31,308÷31,316Press valve seats into the housingsNote: Valve seatsare supplied in finished form, further machining isprohibited.Valve recess and seat sealing widthDimensions (mm):LDW502-602-903-1204-1204/TmmD 0,5÷0,81, 1S 1,6÷1,72, 0LDW702 - 1003 - 140488 89mmD 0,7÷1,01, 3S 1,62, 0Grind valve seats with fine emery paste.After grinding check the valve recess D relative to the cylinder headsurface and the seat sealing width S.- 50 - FOCS Workshop Manual_cod. 1.5302.351_7° ed_ rev. 06

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