Yanmar 3GM30F Specifications download pdf (Page 9)

Firing order - 1-2-1 1-3-4-2-1

Valve clearance

Suction • • 0.2±0.03

Exhaust • • 0.2±0.03

Injection timing (FID) bTDC 15°±1

bTDC 15°±1

bTDC 18°±1

Injection pressure Mpa 19.6±0.49 (200±5kg/cm2)

Lubricant pressure Mpa 0.39±0.05 (4.0±0.5kg/cm2)

5.2 List of tightening torques

Engine Model 1GM10 2GM20(F) 3GM30(F)

Cylinder head N-m

73.5

(7.5 kgf-m)

Main nut and bolts

117.7(12.0 kgf-m)

Auxiliary bolts

29.4(3.0 kgf-m)

Injection nozzle N-m 19.6(2.0 kgf-m)

Connecting rod N-m 24.5(2.5 kgf-m)

6. Trouble and troubleshooting

If you should encounter some difficulty during operation, refer to the following table for countermeasures.

Trouble Probable Cause Measure

Problem occurs during operation.

NOTICE

When the alarm equipment indicates a problem, immediately put the clutch in neutral and run the engine at

low speed.

Check to see which alarm indicator is lit, then stop the engine and inspect.

When you cannot determine the source of the problem, return to port at low speed and ask your Yanmar

dealer for repair.

Alarm buzzer sounds and alarm come on.

Faulty battery Check battery fluid.

V-belt is loose or damaged

Adjust V-belt tension or replace

belt.

Charge Lamp

(Alarm buzzer does not sound)

Alternator is not generating

electricity

Ask for repairs.

Insufficient cooling water in fresh water tank

Check and replenish cooling

water.

Leakage in fresh water cooling system Ask for repairs for water leakage.

Fresh water cooling pump is damaged Ask for repairs.

C.W. Temp. Lamp goes on Inside of C.W. system is dirty Ask for repairs.

L.O. Press. Alarm Lamp goes on Insufficient engine oil Replenish engine oil.

Insufficient discharge of cooling seawater

Kingston cock is closed.

Kingston cock is clogged.

Suction hose is damaged or

joints loose.

1 2 3 4 5 6 7 8 9 10

GM Series 1

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Yanmar 3GM30F Specifications Page 9

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