Kubota V2403-M-T User Manual

S-78
03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM
DIESEL ENGINE
Correcting Valve and Valve Seat
NOTEQ
• Before correcting the valve and seat, check the valve stem
and the I.D. of valve guide section, and repair them if
necessary.
• After correcting the valve seat, be sure to check the valve
recessing.
1) Correcting Valve
1. Correct the valve with a valve refacer.
[D1503-M, D1703-M, D1803-M, V2003-M, V2203-M, V2403-M,
V2403-M-T]
[D1703-M-BG, V2003-M-BG, V2003-M-T-BG, V2203-M-BG,
V2403-M-BG]
[D1803-M-DI, V2403-M-DI, V2403-M-DI-T]
2) Correcting Valve Seat
1. Slightly correct the seat surface with a 1.0 rad (60 °) or 0.79 rad
(45 °) valve seat cutter.
2. Resurface the seat surface with a 0.52 rad (30 °) valve seat cutter
or 0.26 rad (15 °) valve seat cutter to valve seat so that the width
is close to specified valve seat width (2.12 mm, 0.0835 in.).
3. After resurfacing the seat, inspect for even valve seating, apply a
thin film of compound between the valve face and valve seat, and
fit them with valve lapping tool.
4. Check the valve seating with prussian blue. The valve seating
surface should show good contact all the way around.
[D1503-M, D1703-M, D1803-M, V2003-M, V2203-M, V2403-M,
V2403-M-T]
[D1703-M-BG, V2003-M-BG, V2003-M-T-BG, V2203-M-BG,
V2403-M-BG]
[D1803-M-DI, V2403-M-DI, V2403-M-DI-T]
W10283500
Valve face angle
Factory
spec.
IN.
1.0 rad
60 °
EX.
0.79 rad
45 °
Valve face angle
Factory
spec.
IN.
0.79 rad
45 °
EX.
0.79 rad
45 °
Valve seat angle
Factory
spec.
IN.
1.0 rad
60 °
EX.
0.79 rad
45 °
Valve seat angle
Factory
spec.
IN.
0.79 rad
45 °
EX.
0.79 rad
45 °
(1) Valve Seat Width
(2) Identical Dimensions
(A) Check Contact
(B) Correct Seat Width
(C) Check Contact
(a) 0.26 rad (15 °) or 0.52 rad (30 °)
(b) 0.79 rad (45 °) or 1.0 rad (60 °)
(c) 0.52 rad (30 °) or 0.26 rad (15 °)
KiSC issued 07, 2008 A

Kubota V2403-M-T Specifications

General

Brand	Kubota
Model	V2403-M-T
Category	Engine
Language	English