Vetus M2.05 Marine Diesel Engine — Service Manual
SERVICE MANUAL
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Specifications, adjustments, periodic service chart and tightening torques from the Mitsubishi K2/KE two-cylinder service manual supplied by VETUS for the M2.05 (STM0140), plus the case kit and sea water pump parts from the M2.05 parts catalogue.
DocumentVetus M2.05 Marine Diesel Engine Service Manual
FormatPDF · 116 pages · 6.8 MB
LanguageEnglish
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About These Documents
- Service manual: "Mitsubishi Diesel Engine Service Manual, Model K2AS, K2B, K2C, KE70, KE75", VETUS reference STM0140, edition '85-10 (scanned). It describes the structure and service procedures of the Mitsubishi vertical 2-cylinder diesel engines.
- The manual does not state which of these models is the base of the M2.05; check the engine model embossed on the front left side of the crankcase and the engine number stamp.
- Parts catalogue: VETUS "Onderdelencatalogus / Parts catalogue M2.05", W.H. den Ouden 1989 (scanned), pages dated 28-9-85 to 15-4-88; available as the second download.
- All values on this page were read from the scanned pages.
| Chapter | Contents | Manual pages |
|---|---|---|
| 0 | General: model and serial number, sectional views, specifications, performance curves, troubleshooting, adjustments | 1 – 17 |
| 1 | Engine proper: cylinder head, crankcase construction and service | 18 – 42 |
| 2 – 4 | Lubrication (oil filter, oil pump, oil pressure switch), fuel system (fuel filter, fuel pump, injection pump, injection nozzle), governor | 43 – 61 |
| 5 | Cooling: water pump, thermoswitch, thermostat, cleaning, antirust and antifreeze | 62 – 65 |
| 6 | Electrical: starter, alternator, regulator, glow plug and plug indicator | 66 – 86 |
| 7 | Other accessories: air cleaner, muffler, safety covers, radiator | 87 – 89 |
| 8 | Maintenance: special tools, periodic service, judgement on engine overhaul time, service standard, tightening torque chart, sealant chart | 90 – 107 |
Specifications (Manual Page 11)
| Item | K2AS | K2B | K2C | KE70 | KE75 |
|---|---|---|---|---|---|
| Bore × stroke (mm) | 65×68 | 68×78 | 70×78 | 73×80 | 78×80 |
| Total displacement (cc) | 451 | 566 | 600 | 669 | 764 |
| Compression ratio | 25 | 23 | 23 | 20 | 20 |
| Outside dimensions L×W×H, agricultural standard type (mm) | 393×342×519 | 426×446×548 | 426×446×548 | 475×474×624 | 475×474×624 |
| Dry weight, agricultural standard type (kg) | 80 | 82 | 84 | 100 | 105 |
| Fuel injection pressure (kg/cm²) | 160 | 120 | 120 | 120 | 120 |
| Lubricating oil capacity incl. oil filter 0.3 ℓ (ℓ) | 2.8 upper – 1.8 lower | 2.8 upper – 1.8 lower | 2.8 upper – 1.8 lower | 2.9 upper – 1.9 lower | 2.9 upper – 1.9 lower |
| Coolant capacity, engine only (ℓ) | 1.6 | 2.1 | 2.1 | 2.1 | 2.1 |
- All models: vertical, overhead valve, water-cooled 4-cycle diesel; swirl chamber; 2 cylinders; firing order 1-2.
- Bosch M type injection pump, centrifugal flyweight governor, throttle type nozzle; forced lubrication with trochoid oil pump and pre-element oil filter.
- Forced water circulation with centrifugal water pump; solenoid shift starter (12-0.9, 1.1, 1.2 or 1.6 V-kW); AC alternator (12-14, 15, 35 or 50 V-A); sheath type glow plugs.
Adjustments
Valve Clearance
- Clearance, intake and exhaust: K2 0.25 mm, KE 0.35 mm.
- Remove the rocker cover, loosen the rocker arm nut, check with a feeler gauge and adjust with the adjusting screw.
- Adjust No. 1 cylinder at TDC on its compression stroke, then No. 2 cylinder at TDC on its compression stroke (timing mark on the gear case aligned with the crankshaft pulley mark).
- Hold the adjusting screw and tighten the rocker arm nut. Retighten the cylinder head bolts before adjusting the valves.
- Cylinder head bolt torque on this page: K2 12–13 kgm; KE70, KE75 13–14 kgm (old bolt only), 14–15 kgm (new bolt w/washer).
Injection Timing
- Remove the No. 1 delivery valve holder, take out the delivery valve and spring, refit the holder only; turn the crankshaft – the moment fuel stops flowing out of the holder is the injection time.
- Injection time (at smoke set): K2C-31, 61: 23° BTDC; K2AS-61WM, K2B-31, 61, K2C-31CW, KE70 all types, KE75: 25° BTDC; K2AS-31DG, -61A: 27° BTDC.
- Correct with the injection pump shims: changing the shim thickness 0.1 mm changes the timing about 1°.
- Alternative without removing the delivery valve: watch fuel swell at the No. 1 pipe end – this appears about 1° later than the normal injection timing.
Maximum Idling Speed
| Model | Type | Maximum idling speed (rpm) | Rated horsepower (PS/rpm) |
|---|---|---|---|
| K2AS | 31DG | 3750 +30/−10 | 8.5/3600 |
| K2AS | 61A, WM | 3150 +30/−10 | 9.2/3000 |
| K2B | 31A, DW, SW, 61A | 3150 +30/−10 | 12/3000 |
| K2B | 51M | 3100 +30/−10 | 11.5 or more/3000 |
| K2B | 32SW | 3430 +30/−10 | 12/3300 |
| K2B | 31DG | 3750 +30/−10 | 12.5/3600 |
| K2C | 31H | 2700 +30/−10 | 11/2500 |
| K2C | 61A, EM, SA, SS, WM | 3150 +30/−10 | 13/3000 |
| K2C | 31CW | 3750 +30/−10 | 14/3600 |
| KE70 | 11, 13 | 2850 +30/−10 | 13/2700 |
| KE75 | 11 | 2850 +30/−10 | 15/2700 |
| KE75 | 12 | 3150 +30/−10 | 16/3000 |
| KE75 | 31A, SW | 3150 +30/−10 | 16/3000 |
| KE75 | 31NA | 2850 +30/−10 | 15/2700 |
| KE75 | 61A, EA, SA, 61SS | 3150 +30/−10 | 16/3000 and 16.7/3000 |
| KE75 | 61WH | 2950 +30/−10 | 15/2800 |
Set the maximum idling speed with the high speed setting bolt and lock the bolt.
Periodic Service Chart (Manual Page 91)
| Service item | Interval |
|---|---|
| Looseness, damage and leakage; exhaust, noise and vibration | Check before operation |
| Retightening of engine parts | Check after first 50 hrs and every 800 hrs |
| Valve clearance | Check/adjust after first 50 hrs and every 400 hrs |
| Engine idling | Check after first 50 hrs and every 100 hrs |
| Engine compression pressure | Check every 800 hrs |
| Engine oil | Check before operation; replace after first 50 hrs and every 100 hrs |
| Oil filter | Replace after first 50 hrs and every 100 hrs |
| Fuel | Check before operation; drain for long storage |
| Fuel tank | Clean every 400 hrs and for long storage |
| Fuel filter | Clean every 100 hrs; replace every 400 hrs |
| Fuel pump (filter) | Clean after first 50 hrs and every 100 hrs |
| Injection pump | Check every 800 hrs (adjustment of fuel injection rate) |
| Nozzle | Check every 200 hrs |
| Air cleaner, filter paper type | Clean every 100 hrs; replace every 400 hrs |
| Air cleaner, oil bath type | Check before operation; clean and replace oil every 100 hrs |
| Cooling water | Check before operation; replace after first 50 hrs and every 800 hrs; drain for long storage (unless antifreeze is used, drain daily in winter) |
| Tension of fan belt | Check after first 50 hrs and every 200 hrs |
| Instruments (pilot lamps) | Check before operation |
| Glow plugs | Check every 400 hrs |
| Starter, alternator and regulator | Check every 400 hrs; at 800 hrs: adjustment of voltage and current (as printed) |
Tightening Torque Chart (kg·m, Manual Page 106)
| Part | Model | Torque |
|---|---|---|
| Cylinder head bolt (M8) | K2AS | 3.5 – 4.0 (as printed) |
| Cylinder head bolt (M8) | K2B, K2C | 12 – 13 |
| Cylinder head bolt (M8), old "7T" bolt | KE70, KE75 | 13 – 14 |
| Cylinder head bolt (M8), new bolt w/washer | KE70, KE75 | 14 – 15 |
| Connecting rod cap nut | K2, KE70 | 3.2 – 3.5 |
| Connecting rod cap bolt | KE75 | 5.5 – 6.0 |
| Crankshaft pulley nut | 15 – 20 | |
| Flywheel mounting bolt | K2AS | 6.5 – 7.0 |
| Flywheel mounting bolt, old bolt w/washer | except K2AS | 11.5 – 12.5 |
| Flywheel mounting bolt, new bolt w/flange, w/o washer | except K2AS | 13 – 14 |
| Oil filter | 1.1 – 1.3 | |
| Oil drain plug | 5 – 6 | |
| Injection pump delivery valve holder | 4 – 5 | |
| Nozzle holder installation to engine | K2AS | 5 – 6 |
| Nozzle holder mounting bolt | except K2AS | 1.5 – 2.0 |
| Nozzle holder and retaining nut | 6 – 8 | |
| Nozzle holder and nut for ring (M12) | K2AS | 4 – 5 |
| Glow plug | 1.5 – 2.0 | |
| Starter B terminal nut (copper stud) | 1.0 – 1.2 |
| Screw dia | Head mark 4 | Head mark 7 | Head mark 10 |
|---|---|---|---|
| M6 | 0.3 – 0.5 | 0.8 – 1.0 | 1.0 – 1.3 |
| M8 | 1.0 – 1.3 | 1.5 – 2.2 | 2.5 – 3.5 |
| M10 | 1.8 – 2.5 | 3.0 – 4.2 | 5.0 – 7.0 |
| M12 | 3.0 – 4.2 | 5.5 – 7.5 | 9.5 – 12.0 |
| M14 | 5.0 – 7.0 | 8.0 – 11.0 | 16.0 – 19.0 |
Ordinary bolts and nuts: by screw diameter and head mark (table above).
M2.05 Parts Catalogue
Case kit M2.05 (page 1-9, dated 28-9-85)
| Part no. | Description | |
|---|---|---|
| STM0051 | Oil filter M3.10 | Ask us to source it → |
| STM3690 | Fuel filter easy change | Ask us to source it → |
| STM3510 | Rubber nipple 22-28 | Ask us to source it → |
| STM3509 | Rubber bend M2.05 | Ask us to source it → |
| STM3523 | Hose 3380 L= 50 mm | Ask us to source it → |
| STM3524 | Hose 3383 L=220 mm | Ask us to source it → |
| STM7063 | Hose clamp 15-24 | Ask us to source it → |
| STM2012 | Hose clamp | Ask us to source it → |
| STM3012 | Hose clamp 38-50 | Ask us to source it → |
| STM3521 | Thermostate M2.05 | Ask us to source it → |
| STM3517 | O-ring 2.62x45.69 | Ask us to source it → |
| STM3516 | O-ring rubber 46x4 | Ask us to source it → |
| STM9053 | Relay | Ask us to source it → |
| STM0052 | Tin paint 125 cc | Ask us to source it → |
| STM3669 | V-belt M2.05 | Ask us to source it → |
| STM8061 | Impeller | Ask us to source it → |
| STM8062 | Gasket | Ask us to source it → |
| STM7056 | Washer | Ask us to source it → |
| STM0063 | Poly foam under | Ask us to source it → |
| STM0064 | Poly foam top | Ask us to source it → |
| STM0062 | Spare parts container yellow | Ask us to source it → |
| STM0059 | Case kit M2.05 | Ask us to source it → |
Sea water pump (page 3-13, M3.10, M2.05, M4.14, dated 15-4-88)
| Part no. | Description | |
|---|---|---|
| STM8065 | Ball bearing | View part → |
| STM8052 | Excentre cage | View part → |
| STM8053 | Shaft | View part → |
| STM8066 | Retaining clip | View part → |
| STM8067 | Ball bearing | Ask us to source it → |
| STM8068 | Lip seal | Ask us to source it → |
| STM8069 | Body | Ask us to source it → |
| STM8059 | Cam 1/1 | Ask us to source it → |
| STM8061 | Impeller | Ask us to source it → |
| STM8062 | Gasket | Ask us to source it → |
| STM8063 | Cover | Ask us to source it → |
| STM8064 | Screw | View part → |
| STM8070 | Body M2.05 | Ask us to source it → |
| STM8071 | Excentre bush M2.05 | Ask us to source it → |
| STM8072 | Ball bearing M2.05 | Ask us to source it → |
| Section | PDF page |
|---|---|
| Case kit (1-9) | 4 – 5 |
| Engine block / crankcase, oil sump, cylinder head, crankshaft, timing gear | 6 – 15 |
| Lubrication, gasket set | 16 – 19 |
| Sea water pump (3-13, for M3.10, M2.05, M4.14) | 20 – 21 |
| Heat exchanger housing and heat exchanger, pumps, air filter | 22 – 29 |
| Senders, controls, instrument panel, electrics, wiring support (4-14) | 30 – 39 |
| Reverse gear boxes (5-4), flywheel housing | 40 – 44 |
| Fuel system, injector holder, regulator, fuel filter, breather | 45 – 54 |
| Rubber mounts (10-5), engine bed (10-7: STM0026 GRP engine bed) | 55 – 58 |
Need a part that isn't listed? Ask us to source it and quote the part number from the PDF.
Products in this Manual
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VTSSTM8052
$318.00 USDList Price: $375.90 USDUnit price /Unavailable -
