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

More documents

Recommendations

Info

42 Engine mechanicals The coolant circuit The coolant circuit is filled with VW G12 coolant. The coolant is channelled out of the central coolant duct in the crankcase upper section and into the cylinder heads. Baffles ensure that all cylinders are swept evenly. At the same time, the coolant flow is redirected from the exhaust side of the combustion chambers towards the intake side. Coolant circuit of W8 engine Oil cooler Heating Small cooling circuit Large cooling circuit Alternator Ribbed V-belt Coolant pump The coolant circuit is subdivided into a small circuit, in which the coolant is only ducted within the engine block. An outer circuit is located above the radiator. Coolant temperature sender Thermostat valve Equalising vessel Radiator S248_098 Coolant temperature sender at radiator outlet
Coolant circuit of W12 engine Right heat exchanger Left heat exchanger Auxiliary heater Cyclical valve Gearbox oil cooler Engine oil cooler Small cooling circuit Large cooling circuit Alternator Coolant pump Coolant temperature sender Thermostat valve Radiator Equalising vessel Auxiliary Radiator S248_099 Coolant temperature sender at radiator outlet 43
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: Lubrication of the conrod bearings
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.)

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

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?