Yanmar 6BY2 - Page 68

ENGINE
Specifications
5-6 BY Service Manual
© 2009 Yanmar Marine International
Crankshaft
and Main
Bearings
Standard Yellow 59.977 - 59.983 mm
(2.3613 - 2.3615 in.)
Standard Green 59.970 - 59.976 mm
(2.3610 - 2.3613 in.)
Standard White 59.964 - 59.969 mm
(2.3608 - 2.3610 in.)
Undersize 1 (U 0.25) Yellow 59.727 - 59.733 mm
(2.3514 - 2.3517 in.)
Undersize 1 (U 0.25) Green 59.720 - 59.726 mm
(2.3512 - 2.3514 in.)
Undersize 1 (U 0.25) White 59.714 - 59.719 mm
(2.3509 - 2.3511 in.)
Undersize 2 (U 0.50) Yellow 59.477 - 59.483 mm
(2.3416 - 2.3418 in.)
Undersize 2 (U 0.50) Green 59.470 - 59.476 mm
(2.3413 - 2.3416 in.)
Undersize 2 (U 0.50) White 59.464 - 59.469 mm
(2.3411 - 2.3413 in.)
Crankshaft Bearing Clearance, Radial 0.019 - 0.052 mm
(0.0007 - 0.0020 in.)
Crankshaft
Thrust
Bearings
Standard 25.00 +0.020 / +0.066 mm
(0.9842 +0.0008 / +0.0026 in.)
Size 1 25.2 +0.020 / +0.066 mm
(0.9921 +0.0008 / +0.0026 in.)
Size 2 25.4 +0.020 / +0.066 mm
(1.000 +0.0008 / +0.0026 in.)
Crankshaft Axial Play 0.06 - 0.25 mm
(0.0024 - 0.0098 in.)
Connecting
Rod Journals
Standard 45.00 -0.009 / -0.025 mm
(1.7716 -0.0004 / -0.0010 in.)
Size 1 44.75 -0.009 / -0.025 mm
(1.7618 -0.0004 / -0.0010 in.)
Size 2 44.50 -0.009 / -0.025 mm
(1.7520 -0.0004 / -0.0010 in.)
Radial Bearing Play 0.015 - 0.050 mm
(0.0006 - 0.0020 in.)
Engine
Vibration
Damper
Maximum Permitted Radial Runout 0.40 mm
(0.016 in.)
Maximum Permitted Axial Runout 0.40 mm
(0.016 in.)
Component Remarks Specification