Kubota B2910 User Manual

1 ENGINE
SERVICING SPECIFICATIONS
ENGINE BODY
82410· 82710· 82910 WSM, 12271
Item Factory Specification
Allowable Limit
Cylinder Head Surface
Flatness
-
0.05 mm
0.0020 in.
Compression Pressure (When Cranking with Starting Motor) 2.84 to 3.24 MPa
2.26 MPa
29 to 33
kgf/cm
2
23 kgf/cm
2
412 to 469 psi
327 psi
Difference among Cylinders
-
10 % or less
Top Clearance
0.55 to 0.70 mm
-
0.0217 to 0.0276 in.
Valve Clearance (When Cold)
0.145 to 0.185 mm
-
0.00571 to 0.00866 in.
Valve Seat
Width (Intake)
2.12 mm
-
0.0835 in.
Width (Exhaust)
2.12 mm
-
0.0835 in.
Valve Seat
Angle (Intake) 1.047 rad.
-
60°
Angle (Exhaust) 0.785 rad.
-
45°
Valve Face
Angle (Intake) 1.047 rad.
-
60°
Angle (Exhaust) 0.785 rad.
-
45°
Valve Stem to Valve Guide
Clearance 0.035 to 0.065 mm
0.10 mm
0.0014 to 0.0026 in.
0.0039 in.
Valve Stem
0.0.
6.960 to 6.975 mm
-
0.2740 to 0.2746 in.
Valve Guide
1.0. 7.010 to 7.025 mm
-
0.2760 to 0.2766 in.
Valve Recessing
Protrusion
0.05 mm
-
0.0020 in.
Recessing
0.15 mm
0040 mm
0.0059 in.
0.0157 in.
Rocker Arm Shaft to Rocker Arm
Clearance 0.016 to 0.045 mm
0.10 mm
0.0006 to 0.0018 in.
0.0039 in.
Rocker Arm Shaft
0.0.
11.973 to 11.984 mm -
004714 to 004718 in.
Rocker Arm
1.0.
12.000 to 12.018 mm
-
004724 to 004732 in.
11900810451
1-S4

Kubota B2910 Specifications

General

Fuel Type	Diesel
Transmission Type	Hydrostatic
Hydraulic System	Open center
3-Point Hitch	Category I
Lift Capacity	1, 323 lbs (600 kg)
Drive	4WD
Engine Type	Diesel, 4-cycle, liquid-cooled
Horsepower	30 hp
Number of Gears	Infinite (3 ranges)
Wheelbase	63 inches
PTO Horsepower	22 hp