Westerbeke 30B Three - Page 21

Specified Value/Standard
Repair Limit
Connecting Rod
Type
Forged I-beam
Bend and twist
Within 0.002
(0.05 mm)
Big end thrust clearance
0.004 - 0.014
(0.1 - 0.35 mm)
Connecting Rod Bearing
Type Aluminum
metal with back metal
Oil clearance 0.006 (Service limit)
(0.15 mm)
Undersize
0.01,0.02
(0.25, 0.50 mm)
Crankshaft
Type Fully counterbalanced
Bend Within
0.001
(0.03 mm)
End
play
0.002 - 0.007
(0.05
- 0.175 mm)
Journal 0.0. 1.693
-0.006
(43 mm)
(-0.15 mm)
Pin 0.0.
1.575
-0.006
(40 mm) (-0.15 mm)
Under size finishing
Journal U.S.
0.25
1.6817 - 1.6823
(42.715 - 42.730 mm)
0.50 1.6719 - 1.6724
(42.465 - 42.480 mm)
Pin
U.S. 0.25 1.5636 - 1.5642
(39.715 - 39.730 mm)
0.50 1.5537 - 1.5543
(39.465 - 39.480 mm)
19
Westerbeke Engines