Yanmar 4TNV98 - Valve Spring

ENGINE
6-10
TNV DI Service Manual
Cylinder Head Specifications
Valve Spring
Inspection Item Model Standard Limit
Reference
Page
Free Length
3TNV82A (2-Valve Head)
1.7480 in.
(44.4 mm)
1.7283 in.
(43.9 mm)
See
Inspection of
Valve
Springs on
page 6-44
and 6-60.
4TNV84, 3TNV84, 3TNV84T, 4TNV88
(2-Valve Head)
1.6535 in.
(42.0 mm)
1.6339 in.
(41.5 mm)
4TNV84T (4-Valve Head)
1.4724 in.
(37.4 mm)
1.4528 in.
(36.9 mm)
4TNV94L, 4TNV98, 4TNV98T (4-Valve
Head)
1.5630 in.
(39.7 mm)
1.5433 in.
(39.2 mm)
4TNV106, 4TNV106T (4-Valve Head)
1.9921 in.
(50.6 mm)
1.9724 in.
(50.1 mm)
Squareness
3TNV82A (2-Valve Head) -
0.0551 in.
(1.4 mm)
4TNV84, 3TNV84, 3TNV84T,
4TNV88 (2-Valve Head)
-
0.0551 in.
(1.4 mm)
4TNV84T (4-Valve Head) -
0.0551 in.
(1.3 mm)
4TNV94L, 4TNV98, 4TNV98T (4-Valve
Head)
-
0.0551 in.
(1.4 mm)
4TNV106, 4TNV106T (4-Valve Head) -
0.0551 in.
(1.5 mm)
TNV_DI_SM_A4.book 10 ページ ２００７年１２月６日 木曜日 午前９時２３分