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1、BMW Service Aftersales TrainingTechnical Vehicle DocumentationE65/M67 EngineTechnical status:September 2002E65/M67 Engine Background MaterialBMW Service Aftersales TrainingContentsPageCHAP 1E65 M67 Engine1 Introduction1 - Overview of changes1 - Technical data2 - Full load diagram3 - Reference to exi
2、sting documents4 Engine mechanical systems5 - Turbocharger5 - Exhaust system6 - Pistons8 - Connecting rods9 - Belt drive10 - Oil pan11 - Engine mounting12 Cooling system13 - Transmission oil cooler13 Digital diesel electronics (DDE 5.1)15 - System overview16 - Preheating system32 - Crankshaft sensor
3、32 - Automatic start33 Common rail38 - High pressure pump CP3.341 - Multiple injection43Chapter 1-1HGK-E65_M67_0300_UPDATE.frb, 28. 01. 2003 E65 M67 Engine.BMW Service Aftersales TrainingE65/M67 Engine Background MaterialChapter 1 P.1DriveE65 M67 EngineIntroductionIn September 2002, the M67 diesel e
4、ngine will be added to the range of engines for the E65. The M67 engine was re-engineered to facilitate operation in the E65. The changes and new features are described in this documentation.- Overview of changes- Reworked turbocharger with new actuator- Modified pistons and connecting rods- Belt dr
5、ive with mechanical tensioning device- One-piece oil pan- Modified engine mounting- The radiator and intercooler are made completely of aluminium (see M57TU)- Charge air ducts are equipped with quick-release couplings (see M57TU)- Engine management system DDE 5.1- New preheating system (same as M47T
6、U and M57TU)- 2nd generation common rail (1600 bar) (same as M47TU and M57TU)HGK-E65_M67_0300_UPDATE.frb, 28. 01. 2003 E65 M67 Engine.BMW Service Aftersales TrainingE65/M67 Engine Background MaterialChapter 1 P.2Drive- Technical dataTechnical dataM67 (E38)M67 (E65)Configuration/V-angleV8/90V8/90Disp
7、lacement (cm3)39013901Stroke/bore (mm)88/8488/84Output (kW/bhp) at speed (rpm)180/245 4000190/258 4000Torque (Nm) at speed (rpm)560 1750-2500600 1900-2500Cut-off speed (rpm)From 4000From 4000Compression ratio18.018.0Valves/cylinders44Digital motor electronicsDDE 4. 1DDE 5. 1Complies with exhaust emi
8、ssion regulation - Germany Rest of worldEU3EU3EU3EU3Engine weight (kg)277279HGK-E65_M67_0300_UPDATE.frb, 28. 01. 2003 E65 M67 Engine.BMW Service Aftersales TrainingE65/M67 Engine Background MaterialChapter 1 P.3Drive- Full load diagramFig. 1:Full load diagram M67 (E65), dashed line: M67 (E38)rpmKT-1
9、1076HGK-E65_M67_0300_UPDATE.frb, 28. 01. 2003 E65 M67 Engine.BMW Service Aftersales TrainingE65/M67 Engine Background MaterialChapter 1 P.4Drive- Reference to existing documentsThe components and functions used to date are described in the following technical documentation:M67 seminar working materi
10、al, M57/M67 Common RailM67 seminar working material, DI diesel engine M67D40HGK-E65_M67_0300_UPDATE.frb, 28. 01. 2003 E65 M67 Engine.BMW Service Aftersales TrainingE65/M67 Engine Background MaterialChapter 1 P.5DriveEngine mechanical systems- TurbochargerThe efficiency of the turbine and compressor
11、wheel was optimized by a modified blade geometry, resulting in substantially improved response characteristics of the turbochargers.A modified actuator is also fitted.Technical dataActuatorTo date, the actuator was produced solely in small-lot production for the E38/M67 .The actuator was modified sl
12、ightly for the E65/M67 and produced in larger quantities.Maximum boost pressure1400 mbarMaximum air throughput490 kg/hHGK-E65_M67_0300_UPDATE.frb, 28. 01. 2003 E65 M67 Engine.BMW Service Aftersales TrainingE65/M67 Engine Background MaterialChapter 1 P.6Drive- Exhaust systemFig. 2:Comparison of exhau
13、st systems E38 and E65IndexExplanationIndexExplanationAExhaust system M67 (E38)2Underside catalytic converterBExhaust system M67 (E65)3Centre silencer1Primary catalytic converter4Rear silencerKT-11073HGK-E65_M67_0300_UPDATE.frb, 28. 01. 2003 E65 M67 Engine.BMW Service Aftersales TrainingE65/M67 Engi
14、ne Background MaterialChapter 1 P.7DriveExhaust manifoldThe shape of the exhaust manifold for cylinder bank 5-8 is symmetrical to that of the exhaust manifold for cylinder bank 1-4. On the M67 (E38) both exhaust manifolds were of a different shape.Silencers and catalytic convertersExhaust system E38
15、Exhaust system E652 primary catalytic converters: 3.2 litre volume2 primary catalytic converters: 3.4 litre volume2 underside catalytic converters: 5.76 litre volume2 underside catalytic converters: 2.9 litre volume1 centre silencer: 10 litre volume1 centre silencer: 5.8 litre volume2 rear silencers
16、: 28 litre volume1 rear silencer: 32 litre volumeHGK-E65_M67_0300_UPDATE.frb, 28. 01. 2003 E65 M67 Engine.BMW Service Aftersales TrainingE65/M67 Engine Background MaterialChapter 1 P.8Drive- PistonsStructureThe pistons feature a modified bowl geometry (same as M47TU, M57TU). The geometry of the piston crown bowl was designed to suit the changed injection pressure.Fig. 3:Piston crown bowlIndexExplanationAPiston crown bowl M67 (E38)BPiston crown bowl M67 (E65)KT-10835HGK-E65_M67_0300_UP
