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BMW N74 Engine Manual PDF Download
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BMW N74 Engine Manual PDF Download

BMW N74
SKU: ZC-130348

BMW N74 ENGINE MANUAL N74 Engine Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . N74 Engine . . . . . . . . . . . . . . . . . . . . . . . . . . History . . . . . . . . . . . . . . ....

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Complete Service Manual

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Wiring Diagrams

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Specifications

Torque values & specs

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BMW N74 ENGINE MANUAL

N74 Engine
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . .
N74 Engine . . . . . . . . . . . . . . . . . . . . . . . . . .
History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N74 Engine Features . . . . . . . . . . . . . . . . .
Technical Data . . . . . . . . . . . . . . . . . . . . . . .
Horse Power and Torque Diagram . . . .
Engine Components/Systems Overvie
Engine Identification . . . . . . . . . . . . . . . .
Engine designation . . . . . . . . . . . . . .
Engine identification and number . .
Engine Components . . . . . . . . . . . . . . . . . .
Engine Block . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head Cover . . . . . . . . . . . . . . . .
Oil Sump . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crankcase Ventilation . . . . . . . . . . . . . . . . . .
Register Ventilation . . . . . . . . . . . . . . . . .
Oil Separation . . . . . . . . . . . . . . . . . . . . . .
Crankshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crankshaft Bearings . . . . . . . . . . . . . . . .
Connecting Rods . . . . . . . . . . . . . . . . . . . . .
Pistons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Camshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chain Tensioner . . . . . . . . . . . . . . . . . . . . . . .
Valve Train . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VANOS . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Camshafts . . . . . . . . . . . . . . . . . . . . . . . . .
Roller Cam Followers . . . . . . . . . . . . . . .
Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Belt Drive . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Circuit . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pump . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure Limiting Valve . . . . . . . . . . . . . .
Oil Filter . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Spray Nozzles . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil spray nozzles for piston crown cooling . .
Oil spray nozzles for timing chain lubrication
Oil Level Measurement . . . . . . . . . . . . . . . . . . . . .
Engine Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main coolant pump . . . . . . . . . . . . . . . . . . . . .
Auxiliary water pump for exhaust turbocharg
Expansion Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charge Air Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auxiliary Coolant Pump for Charge Air Cooling
Charge-air Cooler . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Control Unit . . . . . . . . . . . . . . . . . . . . . . . .
Intake Air Duct . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turbocharging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust Turbocharger . . . . . . . . . . . . . . . . . . . . . .
Charging Pressure Control . . . . . . . . . . . . . . . . . .
Blow-off control . . . . . . . . . . . . . . . . . . . . . . . . .
Charge Air Cooling . . . . . . . . . . . . . . . . . . . . . . . . .
Intake Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust Manifold . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust Emissions . . . . . . . . . . . . . . . . . . . . . . . . .
Secondary Air System . . . . . . . . . . . . . . . . . . . . . .
Secondary air pump . . . . . . . . . . . . . . . . . . . . .
Secondary air valve . . . . . . . . . . . . . . . . . . . . . .
On-board diagnosis of secondary air system
Vacuum System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Injection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High Pressure Pump . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic Circuit Diagram . . . . . . . . . . . . . . . . . . .
Injectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outward-opening Piezo Injector . . . . . . . . . . . . .
Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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