Eicher Mammut
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Eicher ED 310 Mammut (1959–1962): three-cylinder diesel with 4,275 cm³ of displacement, 32.9 kW and an unusually large per-cylinder volume
With the nickname Mammut, Eicher, the Bavarian tractor manufacturer, denoted a large-displacement range from the late 1950s and early 1960s. The ED 310 was built from 1959 to 1962. Tractors of this size were regarded in their day as capable versions for farms with correspondingly large areas.
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The Eicher ED 310 carries a three-cylinder diesel engine with 4,275 cm³ of displacement, producing 45 hp, or 32.9 kW. At 2,245 kg, 3,480 mm long, 1,525 mm high, 1,735 mm wide and with a 2,253 mm wheelbase, the machine reaches a top speed of 20 km/h.
With 4,275 cm³ spread across only three cylinders, each individual cylinder has an unusually large volume of over 1,400 cm³, pointing to a slow-running, torque-rich engine well suited to draft work with heavy ploughs. The name Mammut fitted this large-displacement design at a comparatively modest 32.9 kW. The comparatively low 1,525 mm build height stood in some contrast to the machine's bulky, name-giving appearance.
When buying such an old, large-displacement three-cylinder engine used, the condition of the pistons and cylinder liners matters, as wear becomes especially noticeable with large individual displacements. Also worth checking are the injection pump, the condition of the clutch on torque-rich engines of this design, and corrosion damage to the frame and sheet-metal parts, which are the norm on tractors of this age.
Sources: SpecCodex-Register: Kennwerte des Modells Eicher ED 310, Eicher (Wikipedia)
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