Tappets - Kubota D1503-M Workshop Manual

03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM
Cylinder Head (Continued)
IMPORTANT
• When replacing piston, piston pin, small end bushing,
connecting rod, or crankpin bearings, measure piston
head's protrusion or recessing from the level of crankcase
cylinder face (average of all pistons) after installing the
pistons, and select the cylinder head gasket following the
below table.
Selecting the cylinder head gasket
1. Measure the piston head's protrusion or recessing from the
crankcase cylinder face 4 spots per each piston (average of all
pistons) using the dial gauge.
2. Select the suitable cylinder need gasket refer to the table below.
D1503-M, D1703-M
D1803-M, V2003-M
V2203-M, V2403-M
V2403-M-T
Gasket Size (Number)
D1703-M-BG
V2003-M-BG
V2003-M-T-BG
V2203-M-BG
V2403-M-BG
0.500 to 0.540 mm
15
0.0197 to 0.0212 in.
0.550 to 0.590 mm
20
0.0217 to 0.0232 in.
0.600 to 0.640 mm
25
0.0237 to 0.0251 in.
0.650 to 0.690 mm
30
0.0256 to 0.0271 in.
0.700 to 0.740 mm
35
0.0276 to 0.0291 in.
(6) Measuring Points

Tappets

1. Remove the tappets (1) from the crankcase.
(When reassembling)
• Visually check the contact between tappets and cams for proper
rotation. If defect is found, replace tappets.
• Before installing the tappets, apply engine oil thinly around them.
IMPORTANT
• Do not change the combination of tappet and tappet guide.
(1) Tappet
S-52
DIESEL ENGINE
Piston Protrusion
D1803-M-DI
V2403-M-DI
V2403-M-DI-T
0.475 to 0.525 mm
0.0187 to 0.0206 in.
0.525 to 0.575 mm
0.0206 to 0.0227 in.
0.575 to 0.625 mm
0.0227 to 0.0246 in.
0.625 to 0.675 mm
0.0246 to 0.0266 in.
0.675 to 0.725 mm
0.0266 to 0.0285 in.
[A] 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
[B] D1803-M-DI, V2403-M-DI
V2403-M-DI-T
W1085632
W1022001
KiSC issued 07, 2008 A