Why is there white smoke from Yanmar 4JH4-TE Engine?
If you observe white smoke coming from your Yanmar Engine, it could be due to improper fuel. The fuel injector might be faulty, or the fuel injection timing might be off. Also, lube oil burns may cause the white smoke. In all of these cases, ask for repairs.
What to do if the starter turns, but Yanmar 4JH4-TE Engine does not start?
If your Yanmar Engine's starter turns, but the engine does not start, first check if there is enough fuel and replenish it, bleeding the air. If the fuel filter is clogged, replace the element. If you are using improper fuel, replace it with the recommended fuel. If the problem persists, it may be a faulty fuel injection system or compression leakage, and you should ask for repairs.
Why Yanmar 4JH4-TE starter turns but engine does not start?
If your Yanmar Engine's starter turns but the engine doesn't start, it might be due to several reasons. You may have no fuel, so add fuel and bleed the fuel system. The fuel filter might be clogged, so replace the filter element. It could also be due to improper fuel, so replace it with the recommended fuel. For issues with fuel injection or compression leakage, consult your authorized Yanmar Marine dealer or distributor.
Why Yanmar Engine producing black smoke?
If the exhaust from your Yanmar Engine is producing black smoke, it may be due to a few reasons. It could be that the load has increased, or there's an improper propeller matching. The intake silencer (air cleaner) might be dirty, so clean the element. Using improper fuel can also cause black smoke, so replace it with the recommended fuel. For a faulty spraying of the fuel injector, consult your authorized Yanmar Marine dealer or distributor.
What to do if the coolant temperature high alarm warning lamp goes on in Yanmar 4JH4-TE Engine?
If the coolant temperature high alarm warning lamp goes on in your Yanmar Engine, first check the coolant level and replenish if needed. Then, inspect the seawater system. If the problem persists, it may be due to contamination inside the cooling system, and you should ask for repairs.
What to do if the lube oil low pressure alarm goes on in Yanmar 4JH4-TE Engine?
If the lube oil low pressure alarm activates and the warning lamp goes on for your Yanmar Engine, check the lube oil level and add or replace oil as necessary. Also, check the lube oil filter for clogs and replace it if needed.
Why does the battery low charge lamp not go out during operation in Yanmar 4JH4-TE?
If the battery low charge lamp does not go out during operation of your Yanmar Engine, replace the V-belt or adjust its tension if it's loose or broken. Then, check the battery fluid level and specific gravity, and replace the battery if defective. If these steps don't resolve the issue, the alternator may have failed, and you should ask for repairs.
Why is there abnormal exhaust color black smoke from Yanmar 4JH4-TE Engine?
If your Yanmar Engine produces abnormal black smoke, it could be due to several reasons. It may be caused by increased load or improper propeller matching, consult your dealer. Check the intake silencer for contamination and clean the element. Replace improper fuel with the recommended fuel. Also, the fuel injector might be faulty, or the intake/exhaust valve clearance might be incorrect, in that case ask for repairs.
What to do if the starter does not turn or turns slowly in Yanmar Engine?
If the starter does not turn or turns slowly on your Yanmar Engine (but the engine can be turned manually), shift to NEUTRAL and try to start. Check the battery fluid level, recharge or replace the battery if needed. Remove any corrosion from the cable terminals and retighten them. If these steps do not solve the problem, it could be a faulty safety switch device or starter switch, or power lacking due to accessory drive engaged, and you should consult your dealer.
What to do if alarm buzzer and alarm lamps are on during operation of Yanmar 4JH4-TE?
If the alarm buzzer and alarm lamps are on during Yanmar Engine operation, shift to low speed immediately and check which lamp has come on. Stop the engine for inspection. If no abnormality is identified and there is no problem with operation, return to port at your lowest speed and request repairs.
General| Number of Cylinders | 4 |
|---|---|
| Aspiration | Turbocharged |
| Fuel System | Direct injection |
| Alternator | 12V - 80A |
| Cooling System | Fresh water cooling with heat exchanger |
| Engine Type | 4-stroke, water-cooled diesel engine |
| Rated Output | 55 kW (75 mhp) at 3200 rpm |
| Starting System | Electric starting |
| Lubrication System | Forced lubrication with gear pump |
To Next Page
