Self-Study Programme 248 The W Engine Concept - VolksPage.Net

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10 Engine mechanicals Specifications - the W8 engine Displacement [cc] 3999 Bore [mm] 84 Stroke [mm] 90.168 Number of cylinders 8 Number of cylinder heads 2 Offset [mm] ± 12.5 Bank offset [mm] 13 V-angle of cylinder heads [°] of both banks 72° V-angle of cylinders [°] in a bank 15 Number of valves 4 / cylinder Splitpin (crankshaft journal offset) -18° Firing order 1-5-4-8-6-3-7-2 S248_017
S248_018 Engine code BDN Dimensions (l x w x h) [mm] 420 x 710 x 683 Weight [kg] approx. 193 Max. output [kW] ([bhp]) 202 (275) Max. torque [Nm] 370 Fuel 98 RON to DIN EN 228 The engine may also be operated alternatively with 95 RON unleaded premium fuel with a slight reduction in performance and torque. Engine management system Bosch Motronic ME7.1 Installation position in-line Allocated gearbox 5HP19 4-Motion, C90 6-speed 4Motion [Nm] 500 400 300 200 100 Torque and power output [kW] 200 150 100 50 2000 4000 6000 rpm S248_021 Torque curve Output curve 11
Page 1 and 2: Service. Self-Study Programme 248 T
Page 3 and 4: At a glance Introduction . . . . .
Page 5 and 6: The W principle To illustrate the p
Page 7 and 8: The modular design principle of the
Page 9: Comparing the 12-cylinder crankshaf
Page 13 and 14: S248_020 [Nm] 800 700 600 500 400 3
Page 15 and 16: The engine in detail To familiarise
Page 17 and 18: The crankcase lower section The cra
Page 19 and 20: Conrods and pistons S248_016 Trapez
Page 21 and 22: There is a groove at the gear wheel
Page 23 and 24: Two-mass flywheel S248_061 A spring
Page 25 and 26: The 4 valves in each cylinder are a
Page 27 and 28: The secondary air ducting system Be
Page 29 and 30: The camshaft timing control Like th
Page 31 and 32: Retard adjustment The solenoid valv
Page 33 and 34: In the W12 engine, the hydraulic be
Page 35 and 36: Schematic diagram of the oil circui
Page 37 and 38: The oil circuit based on the dry-su
Page 39 and 40: The oil pump is mounted from below
Page 41 and 42: Lubrication of the conrod bearings
Page 43 and 44: Coolant circuit of W12 engine Right
Page 45 and 46: Coolant pump with pump gear S248_11
Page 47 and 48: W12 engine Intake manifold upper se
Page 49 and 50: W12 engine Diaphragm valve, right O
Page 51 and 52: Tailpipes Rear silencer Exhaust sys
Page 53 and 54: Liquid gaskets Application of the l
Page 55 and 56: Place the copper coloured chain lin
Page 57 and 58: Notes 57
Page 59 and 60: 5. Why does the W8 engine have a ba
Page 61 and 62:
13. Which of the following statemen
Page 63 and 64:
14.) a 13.) a 12.) b 11.) a, c 10.)
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Self-Study Programme 248 The W Engine Concept - VolksPage.Net

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