Deutz BF4L1011FT Troubleshooting
| Engine Model: Deutz BF4L1011FT |
| Engine Type: 4-stroke 4-cylinder turbocharged air-cooled diesel |
| Total Displacement: 167 cu.in (2.73 L) |
| Rated Engine Power: 62-70 Hp (46-52 kW) at 2500 rpm |
| Fuel System Type: Direct injection |
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| Engine starts up hard or won't start |
Fuel filter plugged - Service the filter.
Air in the fuel lines - Bleed the fuel lines.
Fuel injection nozzles are dirty or defective - Check and replace nozzles if required.
Fuel injection pump is defective - Rebuild or replace pump.
Improper valve timing - Correct or replace timing gear.
Fuel pipes are clogged - Service fuel pipes.
Injection timing is improper - Check injection timing adjustment.
Cylinder or piston rings are worn - Replace defective parts.
| Diesel starts and then shuts off |
Fuel filter plugged - Service or replace the filter.
Fuel injection pump damage - Change pump or rebuild it.
Restricted intake air - Clean or replace the element.
Incorrect nozzle opening pressure - Adjust as recommended.
| Engine shuts off suddenly while running |
Fuel injection timing is not adjusted - Check the fuel injection pump timing adjustment.
Fuel filter element is clogged - Filter maintenance required.
Coolant temperature is low - Warm up to required temperature.
Defective or stuck injection nozzles - Repair or replace injection nozzles.
| Engine stalls when idling |
Improperly adjusted low idle speed - Correct low idle adjustment.
Valve clearance is wrong - Need to adjust valve clearance.
Damaged fuel injection pump - Rebuild or replace pump.
Cooling fins are dirty - Clean the fins.
Damaged or dirty injection nozzles - Check and replace nozzles if required.
Fuel hoses or lines are clogged - Fuel hoses and lines must be clean.
Air cleaner is dirty - Carry out maintenance on air filter.
Cylinder head gasket is blown - Install a new gasket.
Injection timing is wrong - Set the injection timing correctly.
Fuel injection pump is defective - Repair or install a new fuel pump.
Any of moving engine parts is worn - Repair or replace defective components.
Dirty cooling fins - Service and clean.
Damaged or worn fan belt - If necessary, replace the belt.
Insufficient engine oil - Checking oil level and add if necessary.
Cylinder head gasket is damaged - Replace cylinder head gasket.
Injection timing is wrong - Set up as recommended.
Engine oil insufficient - Add oil to the engine crankcase.
Oil pump is damaged - Check and replace if necessary.
Oil filter is dirty - Change or clean engine oil filter element.
Relief valve is stuck or worn - Relief valve need to be replaced or cleaned.
Clearance of crankshaft bearing is excessive - Inspect and replace or repair faulty components.
Excessive oil clearance of crankpin bearing - Test and replace or repair worn components.
| Excessive oil consumption |
Oil leaking: Worn seals or gaskets - To repair leaks, replace worn parts.
Oil viscosity is incorrect - Use oil of correct viscosity.
Piston rings are defective or worn - Change the piston rings as required.
Damaged valve stems or valve guides - Valves need to be changed.
Pistons or cylinder liners are worn - Check liners and pistons, change as required.
Low coolant temperature - Warm up to required temperature.
Engine oil level low - Need to add engine oil.
Incorrect adjustment of fuel injection pump timing - Set up as recommended.
Piston wear or scoring - Have pistons replaced.
Connecting rod is worn or misaligned - Alignment procedure or replacement is required.
Battery capacity is low - Battery is drained, charge it.
Battery runs out quickly - Service charging system or install new battery.
Corroded battery terminals or disconnected wires - Check cables and clean or change terminals.
Battery is discharged or defective - Charge or replace the battery.
Wiring is incorrectly connected or disconnected - Inspect wiring and connect correctly.
Low battery capacity - Charge the battery.
Starter motor is damaged - Starter needs to be replaced.
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