Boring Cylinder Block (Crankcase) For Liner Installation

MACHINING PROCEDURE
1. Widen cylinder bore (Bore diameter D2):
- Pay attention to operating instructions of the boreing tool manufacturer.
- Keep to the dimensions indicated in the machining and setting data below.
2. Bore liner collar seat (Bore diameter D, D1)
- Pay attention to distance between cylinder liner collar seat and contact surface of crankshaft bearing cap (T)
- Pay attention to depth of cylinder liner seat (T1)
3. Use a polishing stone to remove burrs at the slip chamfer of the crankcase

MACHINING DATA OF CYLINDER BLOCK (CRANKCASE)
Bore diameter for cylinder liner in crankcase (D2): 90.000-90.035 mm
Bore diameter for cylinder liner collar in crankcase:
D1: 90.55-90.65 mm
D: 92.65-92.75
Seat of liner to center of basic bearing bore (T): 231.000-231.200 mm
Depth of liner seat (T1): 1.000-1.200 mm
Chamfer of cylinder bore at bottom of cylinder runout: 1.5 x 20°