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

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58 Test your knowledge 1. The cylinders in the W engine are arranged according to the follow principle: a. two in-line engines arranged in tandem b. two in-line engines arranged side by side c. two V engines arranged side by side 2. The W engine has left and right cylinder banks. They are aligned at an angle of: a. 15° b. 60° c. 72° d. 120° 3. The maximum possible number of cylinders in an engine based on the W engine principle is: a. W18. b. W16. c. W12. d. W10. e. W8. 4. What does splitpin mean? a. an offset amounting to 12.5 mm. b. a crank pin offset which facilitates a regular firing interval. c. The centre of the crankshaft (fulcrum) is located below the point of intersection of the intersecting centres of the cylinders.
5. Why does the W8 engine have a balancing shaft? a. to prevent rotary vibrations being transmitted from the crankshaft to the gearbox b. to compensate for torsional vibration c. to compensate for forces of inertia d. to determine the engine speed 6. A pulse sensor wheel is used to determine the engine speed a. it is press-fitted onto the crankshaft. b. it is integrated in the two-mass flywheel. c. it is located on the gear side of the balancing shafts 7. Which ducts are routed through the cylinder heads? 1.) __________________________________________________________________________ 2.) __________________________________________________________________________ 3.) __________________________________________________________________________ 8. How are the camshafts adjusted? a. pneumatically b. hydraulically c. mechanically 59
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 and 10: Comparing the 12-cylinder crankshaf
Page 11 and 12: S248_018 Engine code BDN Dimensions
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: Notes 57
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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