Yanmar 3TNV88F - Push Rod; Rocker Arm and Shaft; Valve Spring

ENGINE
3TNV88F Service Manual
6-5
Cylinder Head Specifications
Push Rod
Rocker Arm and Shaft
Valve Spring
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 6-22.
Inspection item Standard Limit Reference page
Arm shaft hole diameter
0.6299 - 0.6307 in.
(16.000 - 16.020 mm)
0.6327 in.
(16.07 mm)
See Inspection of rocker
arm assembly on
page 6-22.
Shaft outside diameter
0.6286 - 0.6293 in.
(15.966 - 15.984 mm)
0.6276 in.
(15.94 mm)
Oil clearance
0.0006 - 0.0021 in.
(0.016 - 0.054 mm)
0.0051 in.
(0.13 mm)
Inspection item Standard Limit Reference page
Free length
1.6535 in.
(42.0 mm)
1.6339 in.
(41.5 mm)
See Inspection of valve
springs on page 6-25.
Squareness –
0.0551 in.
(1.4 mm)
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