Deutz BF4M2011 Troubleshooting
| Engine Model: Deutz BF4M2011 |
| Engine Type: 4-stroke in-line 3-cylinder turbocharged oil-cooled diesel |
| Total Displacement: 190 cu.in (3.1 L) |
| Rated Engine Power: 87 hp (65 kW) at 2800 rpm |
| Fuel System Type: Direct Injection |
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| Engine starts up hard or won't start |
Fuel filter element is dirty - Service the filter.
Air in fuel system - Bleed fuel system.
Fuel injection nozzles fault - Check and replace nozzles if required.
Defective fuel injection pump - Replacement or repair required.
Valve timing is incorrect - Correct or replace timing gear.
Fuel pipes are plugged - Service fuel pipes.
Injection timing is incorrect - Use correct injection timing adjustment.
Worn piston rings and cylinder - Change faulty parts.
| Diesel starts but then stops |
Fuel filter element is dirty - Change filter element.
Fuel injection pump is faulty - Replace injection pump or repair it.
Air cleaner is dirty - Clean or replace element.
Incorrect nozzle opening pressure - Set it correctly.
| Engine stops running suddenly |
Improper setting of fuel injection pump timing - Adjust the pump as required.
Fuel filter element is clogged - Install new filter element.
Low coolant temperature - Warm up engine as required.
Defective or stuck injection nozzles - Change or repair injection nozzles.
| Engine stops at low idle speed |
Too low idle RPM - Adjust the low idle speed.
The valve clearance is incorrect - Adjust to proper valve clearance.
Fuel injection pump is faulty - Repair or install a new fuel pump.
Dirty or faulty injection nozzles - Replace injection nozzles.
Fuel hoses or lines are dirty - Service fuel hoses and lines.
Intake air restriction - Clean air cleaner element.
Oil cooler fins are dirty - Clean the fins.
Cylinder head gasket defective - Install a new gasket.
Improper injection timing - Check injection timing adjustment.
Fuel injection pump is defective - Repair or change injection pump.
One of moving engine components has failed - Replace or repair damaged components.
Dirty oil cooler fins - Service and clean.
Damaged or worn fan belt - Replace as required.
Engine oil level is insufficient - Need to add engine oil.
Cylinder head gasket is damaged - Install a new gasket.
Unadjusted injection timing - Use correct injection timing adjustment.
Lack of oil - Checking oil level and add if necessary.
Worn oil pump - Remove and inspect oil pump.
Oil filter clogging - Clean or change engine oil filter.
Worn or dirty relief valve - Change or service relief valve.
Excessive oil clearance of crankshaft bearing - Test and repair or replace worn parts.
Clearance of crankpin bearing is excessive - Inspect and replace or repair faulty parts.
| High engine oil consumption |
Oil leaking: Defective seals or gaskets - To repair leaks, replace worn parts.
Wrong oil viscosity - Use proper viscosity oil.
Piston rings are seized or worn - Have piston rings replaced.
Valve guides and stems are worn - Valves must be replaced.
Pistons or cylinder liners are damaged - Inspect liners and pistons, replace as necessary.
Low coolant temperature - Warm up to required temperature.
Insufficient engine oil - Checking oil level and add if necessary.
Wrong setting of fuel injection pump timing - Adjust as recommended.
Worn or broken pistons - Replace the pistons.
Connecting rod is defective or not aligned - Align or change connecting rod.
Low battery power - Recharge the battery.
Battery won’t hold charge - Battery needs service or replacement.
Battery cables are disconnected or terminals are faulty - Check battery wires and service or replace terminals.
Battery is drained or worn - Recharge or replace battery.
Battery wiring is disconnected or improperly connected - Inspect wiring and connect as required.
Low battery output voltage - Low battery charging, charge as required.
Starter motor is faulty - Starter needs to be changed.
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