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Daihatsu

DK-26/DK-28/DK-32 Series

Daihatsu Diesel (Osaka, Japan, nicht zu verwechseln mit Daihatsu PKW) ist neben Yanmar der wichtigste japanische Hilfsdiesel-Hersteller. Die DK-Serie ist auf japanischen und koreanischen Neubauten sehr verbreitet — geschätzt 25% aller japanischen Hilfsdiesel sind Daihatsu.

500-3,500 kW (5-8L)
Capacity
HFO / VLSFO / MGO
Medium

Engine Specifications

5L, 6L, 8L
Cylinders
[260, 280, 320] mm
Bore
[380, 390, 420] mm
Stroke

Components & Design

Component data being added…

Technical Data

Specific Fuel Consumption (DK-28) 178-190 g/kWh
Bore Mean Effective Pressure (Pme) DK-26: 2.11-2.43 MPa; DK-28: 2.33-2.43 MPa
Piston Speed (720 rpm) DK-26: 9.12 m/sec; DK-28: 9.36 m/sec
Weight (8DK-28e approx.) 46 tonnes / 9500-13500 kg depending on variant
Design Type 4-stroke, turbocharged, intercooled, direct injection
Emission Standard IMO Tier II/III
Lubrication Forced system with water-cooled exhaust manifold
type 4-Stroke Medium-Speed Auxiliary Engine
tier IMO Tier II
variant count approx 6
period start year 1985
drive type Generator Drive
construction Trunk piston, inline

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Common failures & inspection points

Connecting rod bolts hitting the frame (three-piece connecting rod models)
www.daihatsu.cc/bulletins.htm
Ring groove wear requiring chromium plating of No. 1 and 2 ring grooves (5DK-26, 6DK-26 models); also alteration of top ring width needed
www.daihatsu.cc/bulletinsDK.htm
Fuel injection pump tappet adjustment screw loosening (DK-28, DK-32)
www.daihatsu.cc/bulletins.htm
Pulse absorber degradation requiring regular renewal for reliability (DK-20, DK-26, DK-28)
www.daihatsu.cc/bulletinsDK.htm
Crankshaft journal wear in high-service applications; on-site grinding to 0.50 mm undersize documented as restoration method
injegov.gr/on-site-crankshaft-grind...

Type-general inspection and maintenance points for this equipment category — not model-specific.

Service & Maintenance

Standard Japanese auxiliary engine maintenance.

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Replacement Parts

Daihatsu Diesel (Osaka). Lead time: 2-4 Wochen Asia.
Equipment Model #38029 · ✓ still in production