Xinchai 490B Series Manual page 47

Sound resulting from too big clearance
in connecting rod bearing. A heavy
knocking sound can be heard if engine
Change connecting rod bearing
speed drops suddenly
Sound resulting form too big clearance
between piston pin and connecting rod
Changing rod bushing
bushing. A light and sharp sound can be
heard especially during idle speed
Sound resulting from too big clearance
in crankshaft thrust bearing. An
Change crankshaft thrust bearing
impinging sound of crankshaft axially
moving to and fro can be heard
Contact with Xinchai service station
43
窑 窑