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D–8 LUBRICATION SYSTEM . • A silent chain (link connecting type) has been adopted to the oil pump chain to reduce chain operation noise • The engine oil in the engine front cover lubricates the oil pump chain. The wear resistance has been improved • The durability has been improved by heating the sintering material on the oil pump sprocket inside of a furnace. OIL PUMP DRIVEN CHAIN SPEC. . AME3300N007 1 Inner rotor 2 Oil in 3 Relief valve assembly 4 Outer rotor 5 Back 6 Oil out 7 Front ITEM ENGINE L8 LF L3 Pitch size (mm {in}) 8 {0.4} 6.35 {0.25} Number of pitches 54 66 AME3300N008 |