ENGINE
6-6
TNV DI Service Manual
Introduction
INTRODUCTION
This section of the Service Manual describes servicing of the engine.
CYLINDER HEAD SPECIFICATIONS
Adjustment Specifications
Cylinder Head
Model
Valve Clearance
Valve Bridge Clearance
(4-Valve Head Only)
All except 4TNV106, 4TNV106T
0.006 - 0.010 in.
(0.15 - 0.25 mm)
0
4TNV106, 4TNV106T
0.010 - 0.014 in.
(0.25 - 0.35 mm)
0
Inspection Item
Standard
Limit
Reference
Page
Combustion Surface Distortion (Flatness)
0.0020 in.
(0.05 mm) or less
0.0059 in.
(0.15 mm)
See Valve
Recession on
page 6-42
and 6-58.
Valve Recession
3TNV82A
(2-Valve Head)
Intake
0.0138 - 0.0217 in.
(0.35 - 0.55 mm)
0.0315 in. (0.8 mm)
Exhaust
0.0118 - 0.0197 in.
(0.30 - 0.50 mm)
0.0315 in. (0.8 mm)
3TNV84, 3TNV84T,
3TNV88, 4TNV84,
4TNV84T, 4TNV88
(2-Valve Head)
4TNV84T (4-Valve
Head)
Intake
0.0118 - 0.0197 in.
(0.30 - 0.50 mm)
0.0315 in. (0.8 mm)
Exhaust
0.0118 - 0.0197 in.
(0.30 - 0.50 mm)
0.0315 in. (0.8 mm)
4TNV94L, 4TNV98,
4TNV98T
(4-Valve Head)
Intake
0.0142 - 0.0220 in.
(0.36 - 0.56 mm)
0.0315 in. (0.8 mm)
Exhaust
0.0138 - 0.0217 in.
(0.35 - 0.55 mm)
0.0315 in. (0.8 mm)
4TNV106, 4TNV106T
(4-Valve Head)
Intake
0.0197 - 0.0276 in.
(0.50 - 0.70 mm)
0.0394 in. (1.0 mm)
Exhaust
0.0276 - 0.0354 in.
(0.70 - 0.90 mm)
0.0472 in. (1.2 mm)
Valve Seat
(2-Valve, 4-Valve)
Seat Angle
Intake
120°
-
See Valve
Face and
Valve Seat
on page 6-43
and 6-59.
Exhaust
90°
-
Seat Correction Angle
40°, 150°
-
TNV_DI_SM_A4.book 6 ページ ２００７年１２月６日 木曜日 午前９時２３分