Service Specifications; Service Specifications For Engine - Kubota D1803-CR-E4 Workshop Manual

SERVICING

2. Service specifications

2. Service specifications

2.1 Service specifications for engine

Engine body
Cylinder head surface
Top clearance
Compression pressure
Variance among cylinders
Valve seat
Valve face
Valve recessing
Valve stem to valve guide
• Valve stem
• Valve guide
Valve clearance (Cold)
Intake valve timing
Exhaust valve timing
Valve spring
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
Item
Flatness
Angle (Intake)
Angle (Exhaust)
Width (Intake)
Width (Exhaust)
Angle (Intake)
Angle (Exhaust)
Intake
Exhaust
Clearance
O.D.
I.D.
Open
Close
Open
Close
Free length (Intake)
Free length (Exhaust)
Tilt
Service specification
－
0.60 to 0.70 mm
0.024 to 0.027 in.
-1
2.95 to 3.23 MPa / 290 min
(rpm)
2 -1
30.1 to32.9 kgf/cm / 290 min
(rpm)
-1
428 to 468 psi / 290 min (rpm)
－
0.79 rad
45°
0.79 rad
45°
2.12 mm
0.0835 in.
2.12 mm
0.0835 in.
0.79 rad
45°
0.79 rad
45°
0.65 to 0.85 mm
0.026 to 0.033 in.
0.65 to 0.85 mm
0.026 to 0.033 in.
0.040 to 0.070 mm
0.0016 to 0.0027 in.
7.960 to 7.975 mm
0.3134 to 0.3139 in.
8.015 to 8.030 mm
0.3156 to 0.3161 in.
0.18 to 0.22 mm
0.0071 to 0.0086 in.
0.2 rad (9°) before T.D.C.
0.68 rad (39°) after B.D.C.
0.72 rad (41°) before B.D.C.
0.2 rad (9°) after T.D.C.
41.7 to 42.2 mm
1.65 to 1.66 in.
41.7 to 42.2 mm
1.65 to 1.66 in.
－
4. ENGINE
Service limit
0.05 mm / 500 mm
0.002 in. / 19.7 in
－
-1
2.35 MPa / 290 min (rpm)
2
24.0 kgf/cm / 290 min (rpm)
-1
341 psi / 290 min (rpm)
10% or less
－
－
－
－
－
－
1.20 mm
0.0472 in.
1.20 mm
0.0472 in.
0.10 mm
0.0039 in.
－
－
－
－
－
－
－
41.2 mm
1.62 in.
41.2 mm
1.62 in.
1.0 mm
0.039 in.
(Continued)
4-91
KiSC issued 12, 2018 A