Deutz BF6L913 Troubleshooting
| Engine Model: Deutz BF6L913 |
| Engine Type: 4-cycle inline 6-cylinder direct injection air-cooled diesel |
| Total Displacement: 380 cu.in (6.12 L) |
| Rated Engine Power: 147-159 Hp (109-118 kW) at 2500 rpm |
| Aspiration Type: Turbocharged |
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| Engine starts hard or will not start |
Fuel filter element clogging - Clean or replace the filter.
There is air in the fuel system - Bleed the system.
Defective or clogged injection nozzle - Inspect nozzles and replace if necessary.
Fuel injection pump failure - Repair or install new pump.
Valve timing is wrong - Correct or change timing gear.
Dirty fuel pipes - Service or replace fuel pipes.
Improper injection timing - Set the injection timing correctly.
Cylinder or piston rings are worn - Replace faulty parts.
| Diesel starts and then shuts off |
Fuel filter plugged - Change the filter element.
Fuel injection pump damage - Repair or replace injection pump.
Plugged air filter - Replace air filter element.
Improper nozzle opening pressure - Set up as recommended.
| Engine stalls while running |
Improper setting of fuel injection pump timing - Set it up as required.
Fuel filter element is dirty - Change filter element.
Coolant temperature is low - Warm up engine as required.
Injection nozzles are stuck or clogged - Change or repair injection nozzles.
| Engine stalls when idling |
Wrong adjustment of low idle speed - Adjust the low idle speed.
Excessive valve clearance - Check and adjust as required.
Faulty fuel injection pump - Install a new pump or rebuild.
| Diesel engine is losing power |
Fuel injection nozzles fault - Clean or change injection nozzles.
Fuel lines or hoses are dirty - Clean fuel hoses and lines.
Air cleaner is dirty - Replace air filter element.
Cylinder head gasket defective - Install new cylinder head gasket.
Incorrect injection timing - Set up as recommended.
Fuel injection pump failure - Repair or change injection pump.
Any of moving engine parts is worn - Change or repair damaged parts.
Cooling fins are clogged - Need to clean or wash.
Damaged or worn fan belt - Replace the fan belt.
Lack of engine oil - Need to add engine oil.
Cylinder-head gasket is leaking - Install new cylinder head gasket.
Injection timing is wrong - Set the injection timing correctly.
Engine oil level low - Fill up the engine oil.
Oil pump is damaged - Inspect and change as required.
Oil filter is clogged - Replace or service engine oil filter.
Relief valve is defective or dirty - Change or service relief valve.
Clearance of crankshaft bearing is excessive - Check and change or repair defective parts.
Clearance of crankpin bearing is excessive - Check and change or repair defective parts.
| Diesel engine consuming too much oil |
External oil leaks: Damaged gaskets or seals - Install new components.
Oil viscosity is wrong - Use correct viscosity oil.
Piston rings are stuck or worn - Install new piston rings.
Worn valve guides and valve stems - Valves need to be changed.
Cylinder liners or pistons are scored - Inspect liners and pistons, change as necessary.
Coolant temperature is low - Warm up engine as required.
Not enough engine oil - Check oil level and add oil as required.
Improper fuel injection timing - Check the fuel injection pump timing adjustment.
Scored or worn pistons - Pistons need to be replaced.
Misaligned or faulty connecting rod - Align or change connecting rod.
Low battery output - Battery is drained, recharge it.
Battery runs out quickly - Service or replace the battery.
Disconnected battery cables or bad terminals - Check cable connections and change or clean terminals.
Battery is discharged or defective - Recharge or change battery.
Wiring harness is disconnected or improperly connected - Check wiring harness and connect as required.
Low battery capacity - Recharge the battery.
Defective starter motor - Starter should be replaced.
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