Cub-cadet Yanmar 3TNV72 User Manual Page 105

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ENGINE
6-6 TNV IDI Service Manual
Cylinder Head Specifications
Intake / Exhaust Valve and Guide
Push Rod
Valve Spring
Inspection Item Standard Limit
Reference
Page
Intake
Guide Inside Diameter
0.2362 - 0.2367 in.
(6.000 - 6.012 mm)
0.2394 in.
(6.08 mm)
See
Inspection of
Valve
Springs on
page 6-28
Valve Stem Outside
Diameter
0.2346 - 0.2352 in.
(5.960 - 5.975 mm)
0.2323 in.
(5.90 mm)
Oil Clearance
0.0010 - 0.0020 in.
(0.025 - 0.052 mm)
0.0063 in.
(0.15 mm)
Valve Stem Bend -
0.0004 in.
(0.010 mm)
Exhaust
Guide Inside Diameter
0.2362 - 0.2367 in.
(6.000 - 6.012 mm)
0.2394 in.
(6.08 mm)
Valve Stem Outside
Diameter
0.2341 - 0.2346 in.
(5.945 - 5.960 mm)
0.2323 in.
(5.90 mm)
Oil Clearance
0.0016 - 0.0026 in.
(0.040 - 0.067 mm)
0.0067 in.
(0.17 mm)
Valve Stem Bend -
0.0004 in.
(0.010 mm)
Valve Guide Projection From Cylinder Head
0.3858 - 0.3937 in.
(9.8 - 10.0 mm)
-
See
Reassembly
of Valve
Guides on
page 6-29
Valve Stem Seal Projection From Cylinder Head
0.429 - 0.441 in.
(10.9 - 11.2 mm)
Valve Guide Installation Method Cold-fitted -
Inspection Item Standard Limit
Reference
Page
Push Rod Bend
Less than 0.0012 in.
(0.03 mm)
0.0012 in.
(0.03 mm)
See Push
Rod Bend on
page 6-25
Inspection Item Standard Limit
Reference
Page
Free Length
1.4882 in.
(37.8 mm)
-
See
Inspection of
Valve
Springs on
page 6-28
Squareness -
0.0512 in.
(1.3 mm)
TNV_IDI_ServiceManual_(3TNV72 for YN only).book 6 ページ 2007年11月29日 木曜日 午後2時58
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