Cub Cadet Yanmar 3TNV72 - Manual (Page 107)

ENGINE
6-8 TNV IDI Service Manual
Crankshaft and Pistons Specifications
Idler Gear Shaft and Bushing
Timing Gear Backlash
CRANKSHAFT AND PISTONS SPECIFICATIONS
Crankshaft
Note: Check appropriate parts catalog for undersized replacement main bearing inserts.
Inspection Item Standard Limit
Reference
Page
Shaft Outside Diameter
1.4547 - 1.4557 in.
(36.950 - 36.975 mm)
1.4528 in.
(36.900 mm) See
Inspection of
Idler Gear
and Shaft on
page 6-53
Bushing Inside Diameter
1.4567 - 1.4577 in.
(37.000 - 37.025 mm)
1.4596 in.
(37.075 mm)
Oil Clearance
0.0010 - 0.0030 in.
(0.025 - 0.075 mm)
0.0069 in.
(0.175 mm)
Inspection Item Standard Limit
Reference
Page
Crank Gear, Cam Gear, Idler Gear, Fuel Injection Pump Gear
and PTO Gear 0.0024 - 0.0047 in.
(0.06 - 0.12 mm)
0.0055 in.
(0.14 mm)
See
Checking
Timing Gear
Backlash on
page 6-38
Inspection Item Standard Limit
Reference
Page
Bend (1/2 the dial gauge reading) -
0.0008 in.
(0.02 mm)
See
Inspection of
Crankshaft
on page 6-51
Roundness
0.0004 in.(0.01 mm)
or less
0.0008 in.
(0.02 mm)
Connecting Rod Journals
Journal Outside
Diameter
1.6517 - 1.6520 in.
(41.952 - 41.962 mm)
1.6497 in.
(42.902 mm)
Bearing Inside
Diameter
1.6528 - 1.6536 in.
(41.982 - 42.002 mm)
-
Bearing Insert
Thickness
0.0592 - 0.0594 in.
(1.503 - 1.509 mm)
-
Oil Clearance
0.0008 - 0.0020 in.
(0.020 - 0.050 mm)
0.0043 in.
(0.110 mm)
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