BMW D7 Marine Engine - Workshop Manual

Nov 4, 2026

Workshop manual for the BMW D7 marine diesel engine, covering complete procedures for dismantling, overhaul, and assembly. Includes guidance on which steps can be ignored when only part of a procedure is performed, and emphasizes reversing the removal process while following “notes on assembly”. Provides section-by-section technical data, general specifications reference, and end-of-section checking and adjustment procedures such as inspection, valve and injection-related checks, and adjustment information.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages46

Reading Time1 h 56 min

AccessFree to download

Introduction

Fuel System

Summary - Injection valve

Injection pump

Engine speed

Removing cylinder head

Electrical system

Wiring diagram

Water Pump

Technical data

Specifications

Adjustment data

List of Special Tools

Workshop Manual BMW D7 BMW Marine This copy of the BMW D7 Workshop Manual has been re-created using images computer scanned from a manual rather than original artwork. BMW D7 Marine Engine A four-stroke diesel engine with direct injection and open-circuit cooling system . The Neoprene impeller of the coolant pump is driven directly from the crankshaft. Electric starter and flywheel alternator are standard equipment. The injection system is fitted with automatic bleeding. Notes on Use This workshop manual describes complete procedures for dismantling, overhaul and assembly of the BMW D7 marine engine. If only part of the procedure is to be carried out (e.g. small repairs or replacement of gaskets, oilseals) the remainder can be ignored. The relevant technical data is provided with each section. General specifications are found on page iii. Assembly is generally a reversal of removal procedure. Special attention, however, should be paid to "notes on assembly" . Checking and adjustment procedures, where applicable, are to be found at the end of the relevant section. Page Page Introduction i Fuel System 27 Remove, adjust: Summary 1 - Injection valve 27 - Injection pump 29 Removing cylinder head 3 -Engine speed 31 -Preparations 3 Check: -Valve mechanism 4 - Injection pump 32 -Valves 5 - Injection valve 32 -Cylinder head 7 -Fuel pump 32 -Cylinder 7 Air filter 33 Removing gearbox 8 -Starter 8 Electrical system 34 -Reversing gear 8 -Wiring diagram 34 -Bearing cover 9 -Generator 35 -Hand crank mechanism 10 -Starter motor 39 -Connecting rod 11 -Piston 13 Water Pump 40 -Fuel pump 14 -Timing gear cover 14 -Fuel regulator 15 -Crankshaft 16 -Valve lifters 19 -Camshaft 20 Assemble crankshaft 20 -Camshaft 20 -Crankshaft 20 -Fuel regulator 21 -Timing gear cover 21 -Fuel pump 21 -Piston 21 -Connecting rod 21 -Hand crank mechanism 21 -Bearing cover 22 -Reversing gear 22 -Starter Assemble cylinder head 22 -Cylinder 22 -Cylinder head 23 -Valves 23 -Valve mechanism 23 -Hoses & pipes 23 Adjust: 24 -Valve clearance-valve timing 24 -Decompression lever 25 -Automatic decompression 26 Technical data Capacity Bore x stroke Max. power Compression ratio Dry weight with gearbox Gearbox reduction Max. installation angle Specifications Fuel Lubricating oil, engine gearbox Oil capacity, engine gearbox Fuel filter Air filter Injector Injection pressure Injection pump Starter motor Generator Battery Gearbox Adjustment data Injection ends Valve clearances, cold Torque settings Cylinder head nuts M 8 Connecting rod screws Counter weight screws M 6 hex nut for the mounting of the injector Flywheel bolts M 10 Injection pump delivery valve M 6 hex head screw for fastening bearing cover retaining yoke on the flywheel side Nozzle nut [280cc / 17.1 cu.in](280cc / 17.1 cu.in). 73 mm x 67 mm / 2.87 in x 2.64 in 4.5 kw / 6 bhp @ 3600 rpm 22 : 1 68 kg / 150 lbs forward 2.7:1, reverse 1.9:1 15o Diesel oil, DIN 51601/USA \#2 HD-API CC/CD Hurth ATF Dexron-ZF SAE 20 W 20 2 litres / 3.5 pints UK / 4.4 pints US 0.4 litres / 0.7 pints UK / 0.85 pints US BMW 13 32 1 328 270 BMW 13 71 1 329 269 Bosch 135 + 8 bar Bosch PFR 1 K 70 A 343/II Bosch 0.8 kw 14V 350W 25A 12V 60 Ah Hurth HBW5-ZF Bw 3 11.5o-12.5o BTDC 0.15 mm / .006 in. Nm kpm Remarks 40 4.0 Use permanently elastic sealing compound (e.g. Atmosit) on the stud screws in the oil space! 40 4.0 Oil threads and screw head insert lightly 22 2.2 Oil threads and screw head insert lightly 10 1.0 70 7.0 40 4.0 10 1.0 85 8-9 List of Special Tools D7 BMW Part No. Description 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64 1 74 64

FAQs

What procedures does the BMW D7 workshop manual cover?

It describes complete procedures for dismantling, overhaul, and assembly of the BMW D7 marine engine, including checking and adjustment where applicable.

Can parts of a procedure be skipped?

Yes. If only part of the procedure is required (for example, small repairs or replacement of gaskets/oil seals), the remainder can be ignored.

Where are checking and adjustment procedures located?

Checking and adjustment procedures are provided at the end of the relevant section where they apply.

Nov 4, 2026

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