David Brown 780: all source data
All 57 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | David Brown |
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| (no label) | Built in Meltham Mills, Huddersfield, England |
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| Total built | 8,986 |
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| (no label) | Original price was $4,000 in 1971 |
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Engine| (no label) | David Brown 2.7L 3-cyl diesel |
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| Fuel tank | 9.5 gal | 36.0 L |
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Transmission| (no label) | 12-speed |
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| (no label) | 6-speed |
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Power| Engine (gross) | 46 hp | 34.3 kW |
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| Drawbar (claimed) | 38.9 hp | 29.0 kW |
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| PTO (claimed) | 42.9 hp | 32.0 kW |
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Mechanical| (no label) | Two-wheel drive |
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| (no label) | Manual steering |
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| (no label) | Mechanical drum brakes |
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Hydraulics| Pressure | 2000 psi | 137.9 bar |
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| Pump flow | 7.4 gpm | 28.0 lpm |
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| Oil type | SAE20W30 SAE20W40 |
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Hitch| Rear Type | I |
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| Rear lift | 1600 lbs | 725 kg |
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Pto| Rear PTO | live |
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| Rear PTO Type | 540/1000 |
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| Engine RPM | 540@1828 |
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| Engine RPM | 1000@2000 |
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Dimensions| Wheelbase | 75.8 inches | 192 cm |
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| Weight | 3,470 lbs | 1573 kg |
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| Front tire | 6.00-16 |
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| Rear tire | 12.4/11-28 |
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Engine
Engine detail| (no label) | David Brown |
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| (no label) | diesel |
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| (no label) | 3-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 164.4 ci | 2.7 L |
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| Bore/Stroke | 3.9375x4.50 inches | 100 x 114 mm |
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| Power (gross) | 46 hp | 34.3 kW |
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| Compression | 17:1 |
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| Rated RPM | 2200 |
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| Idle RPM | 700-2200 |
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| Firing order | 1-2-3 |
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| Oil capacity | 6.5 qts | 6.2 L |
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| Coolant capacity (Coolant) | 10 qts | 9.5 L |
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Transmission
Transmission options| (no label) | 12-speed |
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| (no label) | 6-speed |
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Transmission| Transmission | sliding gear |
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| Gears | 12 forward and 4 reverse |
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| Clutch | dry disc |
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| Oil capacity | 24 qts | 22.7 L |
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| Gears | 6 forward and 2 reverse |
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| Clutch | dry disc |
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Dimensions
Tires| Ag front | 6.00-16 |
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| Ag rear | 12.4/11-28 |
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Dimensions| Wheelbase | 75.8 inches | 192 cm |
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| Length | 111.75 inches | 283 cm |
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| Width | 64 inches | 162 cm |
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| Height | 82.5 inches | 209 cm |
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| Weight | 3,470 lbs | 1573 kg |
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| Ground clearance | 11.75 inches | 29 cm |
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