Kubota V2403-M-T - Valve Recessing

S-75
03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM
DIESEL ENGINE
Valve Recessing
1. Clean the cylinder head surface, valve face and valve seat.
2. Insert the valve into the valve guide.
3. Measure the valve recessing with a depth gauge.
4. If the measurement exceeds the allowable limit, replace the
valve.
5. If it still exceeds the allowable limit after replacing the valve,
replace the cylinder head.
W10768800
Valve recessing
Factory
spec.
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
0.05 (protrusion) to
0.15 (recessing) mm
0.002 (protrusion) to
0.0059 (recessing) in.
D1803-M-DI
V2403-M-DI
V2403-M-DI-T
0.65 to 0.85 mm
0.026 to 0.033 in.
Allowable
limit
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
0.40 (recessing) mm
0.016 (recessing) in.
D1803-M-DI
V2403-M-DI
V2403-M-DI-T
–
(1) Cylinder Head Surface (A) Recessing
(B) Protrusion
KiSC issued 07, 2008 A