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Kubota V2607 Engine

General Technical Data

Kubota V2607 Engine Specifications

Engine Model .............. Kubota V2607
Engine Type .............. 4-Stroke, vertical, water-cooled diesel
Number of Cylinders .............. 4
Total displacement, cc (cu.in) .............. 2615 (159.6)
Engine Bore, mm (in) .............. 87.0 (3.43)
Engine Stroke, mm (in) .............. 110.0 (4.33)
Rated Engine Power, hp (kW) .............. 66.0 (49.2)
Rated Engine Speed, rpm .............. 2700
Maximum Engine Speed, rpm .............. 2920
Idle Speed, rpm .............. 825-875
Compression Ratio .............. 19:1
Firing Order .............. 1-3-4-2
Lubrication System .............. Forced lubrication by trochoid pump
Oil Filter Type .............. Full Flow Paper

Fuel System

Fuel System Type .............. Direct injection
Fuel Injection Pump .............. Bosch PFR4KZ
Injection Nozzle .............. Bosch P type
Governor Type .............. All speed mechanical governor
Injection Pressure, MPa (psi) .............. 18.63 (2702) 1st stage, 21.57 (3129) 2nd stage
Injection Timing, rad (deg) .............. 0.0044 (0.25) after T.D.C.

Electrical System

Electrical System Rating, Volts .............. 12
Starter Type .............. Electric
Starting Motor .............. 12V, 2.5 kW
Charging Alternator .............. 12V, 540W
Battery Rating .............. 12V, 92AH

Dimensions

Length, mm (in) .............. 670 (26.4)
Width, mm (in) .............. 475 (18.7)
Height, mm (in) .............. 682 (26.8)
Dry Weight, kg (lbs) .............. 235 (518)

Kubota V2607 Maintenance Data

Cylinder Block and Valves

Cylinder Bore I.D. (Maximum), mm (in) .............. 87.15 (3.431)
Cylinder Head (Maximum Out of Flatness), mm (in) .............. 0.05 (0.002)
Intake Valve Clearance, mm (in) .............. 0.13-0.17 (0.0052-0.0068)
Exhaust Valve Clearance, mm (in) .............. 0.13-0.17 (0.0052-0.0068)

Engine Oil and Filter

Engine Oil Type .............. SAE20, SAE30, 10W-30
Oil Classification .............. API CF, CF-4, CG-4, CH-4 or CI-4
Oil Capacity, L (qts) .............. 10.2 (10.8)
Oil Filter Part Number .............. HH164-32430

Service Intervals

Service Air Cleaner Element .............. Every 250 hours
Service Fuel Filter (Element Type) .............. Every 250 hours
Change Engine Oil .............. Every 500 hours
Change Oil Filter Cartridge .............. Every 500 hours
Replace Fuel Filter Cartridge .............. Every 500 hours
Replace Fan Belt .............. Every 500 hours
Check and Adjust Valve Clearance .............. Every 1000 hours
Replace Air Cleaner Element .............. Every 1500 hours
Check Fuel Injection Pump .............. Every 3000 hours

Kubota V2607 Service Specifications

Cylinder Block

Compression Pressure .............. 3.20 MPa (464 psi)
Cylinder Bore I.D (Standard) .............. 87.000-87.022 mm (3.4252-3.4260 in)
Cylinder Bore I.D (Wear Limit) .............. 87.15 mm (3.431 in)
Cylinder Bore Oversize I.D (Standard) .............. 87.250-87.272 mm (3.4350-3.4359 in)
Cylinder Bore Oversize I.D (Wear Limit) .............. 87.40 mm (3.441 in)
Rocker Arm Shaft-Rocker Arm Clearance .............. 0.016-0.045 mm (0.00063-0.0017 in)
Rocker Arm Shaft O.D .............. 13.973-13.984 mm (0.55012-0.55055 in)
Rocker Arm I.D .............. 14.000-14.018 mm (0.55119-0.55188 in)
Tappet to Tappet Bore Clearance .............. 0.020-0.050 mm (0.00079-0.0019 in)
Tappet O.D .............. 9.965-9.980 mm (0.3924-0.3929 in)
Tappet Bore I.D .............. 10.000-10.015 mm (0.39370-0.39429 in)
Connecting Rod Alignment .............. 0.05 mm (0.002 in)

Cylinder Head and Valves

Cylinder Head Surface Flatness .............. 0.05 mm (0.002 in)
Valve Clearance (Cold) .............. 0.13-0.17 mm (0.0052-0.0068 in)
Top Clearance .............. 0.60-0.80 mm (0.024-0.031 in)
Valve Recessing (Intake and Exhaust) .............. 0.65-0.85 mm (0.026-0.033 in)
Valve Stem to Valve Guide Clearance (Intake) .............. 0.030-0.057 mm (0.0012-0.0022 in)
Intake Valve Stem O.D .............. 5.968-5.980 mm (0.2350-0.2354 in)
Intake Valve Guide I.D .............. 6.010-6.025 mm (0.2367-0.2372 in)
Valve Stem to Valve Guide Clearance (Exhaust) .............. 0.045-0.072 mm (0.0018-0.0028 in)
Exhaust Valve Stem O.D .............. 5.953-5.965 mm (0.2344-0.2348 in)
Exhaust Valve Guide I.D .............. 6.010-6.025 mm (0.2367-0.2372 in)
Valve Face Angle (Intake and Exhaust) .............. 0.79 rad (45 deg)
Valve Seat Angle (Intake and Exhaust) .............. 0.79 rad (45deg)
Valve Seat Width (Intake and Exhaust) .............. 3.3-3.6 mm (0.13-0.14 in)
Intake Valve Timing (Open) .............. 0.21 rad (12 deg) before T.D.C.
Intake Valve Timing (Close) .............. 0.77 rad (44 deg) after B.D.C.
Exhaust Valve Timing (Open) .............. 0.86 rad (49 deg) before B.D.C.
Exhaust Valve Timing (Close) .............. 0.30 rad (17 deg) after T.D.C.
Valve Spring Free Length (Standard) .............. 35.4-35.9 mm (1.40-1.41 in)
Valve Spring Free Length (Wear Limit) .............. 34.9 mm (1.37 in)

Piston and Piston Rings

Piston Pin Bore I.D (Standard) .............. 26.000-26.013 mm (1.0237-1.0241 in)
Piston Pin Bore I.D (Wear Limit) .............. 26.05 mm (1.026 in)
Piston Pin to Small End Bushing Clearance .............. 0.014-0.034 mm (0.00056-0.0013 in)
Piston Pin O.D .............. 26.006-26.011 mm (1.0239-1.0240 in)
Small End Bushing I.D .............. 26.025-26.040 mm (1.0246-1.0252 in)
Top Ring Gap .............. 0.20-0.35 mm (0.0079-0.013 in)
Second Ring Gap .............. 0.30-0.45 mm (0.012-0.017 in)
Oil Ring Gap .............. 0.25-0.45 mm (0.0099-0.017 in)
Top Ring Groove Clearance .............. 0.050-0.090 mm (0.0020-0.0035 in)
Second Ring Groove Clearance .............. 0.090-0.12 mm (0.0035-0.0047 in)
Oil Ring Groove Clearance .............. 0.020-0.060 mm (0.00079-0.0023 in)

Camshaft

Camshaft Side Clearance .............. 0.10 mm (0.0039 in)
Camshaft Alignment .............. 0.01 mm (0.0004 in)
Cam Height (Intake) .............. 32.56 mm (1.282 in)
Cam Height (Exhaust) .............. 33.00 mm (1.299 in)
Camshaft Oil Clearance .............. 0.050-0.091 mm (0.0020-0.0035 in)
Camshaft Journal 1 O.D .............. 34.934-34.950 mm (1.3754-1.3759 in)
Cylinder Block Bore 1 I.D .............. 35.000-35.025 mm (1.3780-1.3789 in)
Camshaft Journal 2 O.D .............. 41.934-41.950 mm (1.6510-1.6515 in)
Cylinder Block Bore 2 I.D .............. 42.000-42.025 mm (1.6536-1.6545 in)

Crankshaft

Crankshaft Side Clearance .............. 0.15-0.35 mm (0.0059-0.013 in)
Crankshaft Alignment .............. 0.02 mm (0.0008 in)
Crank Pin-Crank Pin Bearing Clearance .............. 0.011-0.058 mm (0.00044-0.0022 in)
Crank Pin O.D .............. 46.980-46.991 mm (1.8496-1.8500 in)
Crankshaft Journal to Crankshaft Bearing Clearance .............. 0.030-0.051 mm (0.0012-0.0020 in)
Crankshaft Journal O.D .............. 72.977-72.990 mm (2.8732-2.8736 in)

Kubota V2607 Tightening Torque Specs

Cylinder head mounting screw (M13x1.25) .............. 147-156 Nm (109-115 lb-ft)
Cylinder head cover screw (M6x1.0) .............. 9.81-11.2 Nm (7.24-8.31 lb-ft)
Camshaft set screw (M8x1.25) .............. 24-27 Nm (18-20 lb-ft)
Rocker arm bracket screw (M8x1.25) .............. 24-27 Nm (18-20 lb-ft)
Connecting rod screw (M8x1.0) .............. 45-49 Nm (33-36 lb-ft)
Crankshaft screw (M16x1.5) .............. 255-274 Nm (188-202 lb-ft)
Flywheel housing mounting screw (M12x1.25) .............. 78-90 Nm (58-66 lb-ft)
Flywheel screw (M12x1.25) .............. 98.1-107 Nm (72.4-79.5 lb-ft)
Injection pump gear mounting nut (M16x1.5) .............. 93.2-102 Nm (68.8-75.9 lb-ft)
Oil cooler joint screw (M20x1.5) .............. 64-73 Nm (47-54 lb-ft)
Front cover mounting screw (M8x1.25) .............. 24-27 Nm (18-20 lb-ft)
Idle gear mounting screw (M10x1.25) .............. 49-55 Nm (37-41 lb-ft)
Injection pipe retaining nut (M12x1.5) .............. 23-36 Nm (17-26 lb-ft)
Nozzle holder clamp screw (M8x1.25) .............. 24-27 Nm (18-20 lb-ft)
Oil pump cover screw (M6) .............. 7.9-9.3 Nm (5.8-6.8 lb-ft)

KUBOTA TRACTORS TROUBLESHOOTING
L235	L2501	L2550	L275	L3110
L3301	L35	L3710	L3901	L4310
L5030	M4700	M5700	M6040	M6800
M8200	M8540	M9000	MX5100	MX5200