Kubota Diesel Engine RK-70S (7hp)

Model RK70-1S
Type Horizontal Water-cooled, 4-Cycle Diesel Engine
Number of Cylinder 1
Bore x Stroke mm (in) 80 x 75 (3.15 x 2.95)
Displacement cc (cu.in) 376 (22.94)
Maximum Output hp/rpm 7.0 / 2400
kW/rpm 5.22 / 2400
Continuous Rated Output hp/rpm 6.0 / 2200
kW/rpm 4.48 / 2200
Combustion & Lubrication
Combustion System Three Vortex Combustion System
Compression Ratio 24
Direction of Rotation Counter Clockwise (Viewed Fronting the Flywheel)
Starting System Manual Speed – Double Handling
Lubricant System Forced Lubrication with Trochoid Pump
Cooling System Radiator
Fuel Light Diesel Oil (SAE No. 2.0)
Lubricating Oil API Service CC, CD, or CF class (SAE #30, 20, 10W-30)
Cooling Water Capacity L (US gal) 1.3 (0.34)
Fuel Tank Capacity L (US gal) 8 (2.11)
Crankcase Oil Capacity L (US gal) 2.0 (0.53)
Dry Weight kg (lb) 67 (147.7)
Lamp Dynamo Output V.W 12 – 32