Mitsubishi L2E Troubleshooting
| Engine Model: Mitsubishi L2E |
| Engine Type: 4-cycle 2-cylinder naturally aspirated liquid-cooled diesel |
| Total Displacement: 38.8 cu.in (0.63 L) |
| Rated Engine Power: 15.2 Hp (11.3 kW) at 3600 rpm |
| Fuel System Type: Direct or indirect fuel injection |
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| Engine difficult to start or will not start |
Fuel filter element clogging - Change filter element.
Air in fuel tank - Bleed fuel tank.
Fuel injection nozzles are faulty or clogged - Clean or replace injection nozzles.
Defective fuel injection pump - Repair or change injection pump.
Valve timing is out of adjustment - Set the valve timing correctly.
Fuel pipes clogging - Service fuel pipes.
Injection timing is incorrect - Adjust according to specifications.
Worn cylinder or piston rings - Change defective components.
| Diesel starts but then stops |
Clogged fuel filter - Clean or change the filter.
Defective fuel injection pump - Change pump or rebuild it.
Air cleaner is dirty - Clean or replace element.
Improper nozzle opening pressure - Adjust according to specifications.
| Diesel shuts off while driving |
Timing of fuel injection pump is incorrect - Set up as recommended.
Dirty fuel filter - Replace filter element.
Engine is not warmed up to the required temperature - Warm up to required temperature.
Stuck or clogged injection nozzle - Service or change injection nozzles.
Too low idle RPM - Adjustment required.
The valve clearance is not adjusted - Adjust valve clearance according to specifications.
Fuel injection pump is faulty - Change or repair the pump.
Fuel injection nozzles are faulty or clogged - If necessary, replace with a new nozzle.
Fuel lines or hoses are dirty - Clean fuel system lines and hoses.
Air filter clogged - Clean or replace element.
Worn cylinder head gasket - Replace cylinder head gasket.
Improper injection timing - Use correct injection timing adjustment.
Fuel injection pump is broken - Rebuild or install a new injection pump.
One of moving engine components is worn - Repair or replace defective parts.
Radiator fins are clogged or radiator cap is faulty - Clean radiator or change cap.
Low coolant level - Refill to the correct level and inspect system for leaks.
Loose or damaged fan belt - Replace as required.
Insufficient engine oil - Fill up the engine oil.
Cylinder head gasket is worn - Cylinder-head gasket replacement required.
Incorrect injection timing - Check injection timing adjustment.
Low crankcase oil level - Fill the crankcase with oil.
Oil pump is defective - Repair or change.
Engine oil filter is plugged - Service or replace engine oil filter.
Relief valve is seized or worn - Relief valve need to be replaced or cleaned.
Clearance of crankshaft bearing is excessive - Inspect and change or repair worn components.
Clearance of crankpin bearing is excessive - Check and replace or repair defective parts.
| Excessive engine oil consumption |
Oil leakage: Damaged seals or gaskets - Worn parts need to be replaced.
Oil viscosity is incorrect - Use correct viscosity oil.
Worn or broken piston rings - Piston rings replacement required.
Valve guides and stems are worn - Replace defective valves.
Cylinder liners or pistons are worn - Inspect liners and pistons, replace as necessary.
| Abnormal engine noise or knocking |
Engine has not warmed up to the recommended temperature - Normalize the temperature by warming up the engine.
Engine oil insufficient - Check oil level and add oil as required.
Incorrect adjustment of fuel injection pump timing - Adjust as recommended.
Pistons are scored or worn - Replace the pistons as required.
Connecting rod misalignment or failure - Align or replace connecting rod.
| Starter motor cranks slow |
Battery power is low - Battery is drained, recharge it.
Battery discharges quickly - Service charging system or install new battery.
Disconnected wires or corroded battery terminals - Connect cables correctly or replace terminals.
Battery is drained or worn - Recharge or change battery.
Disconnected or improperly connected wiring harness - Inspect battery wiring harness and connect as required.
Battery capacity is low - Low battery charging, charge as required.
Starter motor failure - Repair or replace starter.
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