Technical Specifications 9.1 Engine Specifications and Settings Model BF4M 1012 BF4M 1012 C BF6M 1012 BF6M 1012 C BF4M 1012 E —— BF4M 1012 EC ———— BF6M 1012 E BF6M 1012 EC Number of cylinders 4 4 6 6 Cylinder arrangement vertical, in line Bore [mm] 94 Stroke [mm] 115 Total displacement [cm 3 ] 3192 4788 Compression ratio [ ε ]. 17.5 Working cycle/Combustion system 4-stroke diesel with turbocharging and direct injection Charge air cooler w/o w/o w/ Direction of rotation counter-clockwise Weight 1012 / C incl. cooling system [kg approx.] Weight 1012 E / EC w/o cooling system as per DIN 70020-A [kg approx.] 330 332 435 437 Engine power [kW] 1) . Speed [rpm] 1) .
Valve clearance with cold engine [mm] + 0,1 / Outlet 0,5 + 0,1 Injector opening pressure [bar] 250/275 Start of delivery [°crank angle bTDC] 1) . Firing order of engine 1-3-4-2 1-5-3-6-2-4 1-5-3-6-2-4 V-belt tension: Pre-tension / re-tension 2) . Generator fan [N] 450 / 300 ± 50 . Fuel pump - coolant pump [N] 450 / 300 ± 50 . Compressor [N] 550 / 450 ± 50 . 1) Engine power, speed, start of delivery are stamped on engine rating plate, see also 2.1 2) Retension 15 minutes after the engine has been driven under load 9