Perkins 4.248 Troubleshooting
| Engine Model: Perkins 4.248, A4.248 |
| Engine Type: 4-cycle vertical 4-cylinder direct injection liquid-cooled diesel |
| Total Displacement: 248 cu.in (4.06 L) |
| Rated Engine Power: 80 Hp (56 kW) at 2500 rpm |
| Aspiration Type: Naturally aspirated |
____________________________________________________________________________________
| Engine starts up hard or won't start |
Fuel filter element is dirty - Clean the filter or install new filter element.
Air in the fuel system - Air bleeding.
Defective injection nozzle - Clean or change injection nozzles.
Faulty fuel injection pump - Replacement or repair required.
Improper valve timing - Adjust or replace timing gear.
Fuel pipes are plugged - Service or change fuel pipes.
Incorrect injection timing - Set the injection timing correctly.
Worn piston rings and cylinder - Replace defective components.
| Diesel starts but then stops |
Fuel filter element is dirty - Service or replace the filter.
Fuel injection pump is broken - Change pump or rebuild it.
Plugged air filter - Clean air cleaner element.
Nozzle opening pressure is incorrect - Adjust as recommended.
| Engine stops running suddenly |
Fuel injection timing is not adjusted - Set the fuel pump timing correctly.
Fuel filter plugging - Change filter element.
Engine is not fully warmed up - Engine is not warmed up to the required temperature.
Injection nozzles are stuck or clogged - Change or repair injection nozzles.
Low idle speed set incorrectly - Test and adjust.
The valve clearance is incorrect - Adjust valve clearance.
Fuel injection pump malfunctioning - Install a new fuel pump or repair.
| Diesel engine loses power |
Clogged injection nozzle - If necessary, replace with a new nozzle.
Fuel lines or hoses are dirty - Clean fuel hoses and lines.
Dirty air cleaner - Clean or change.
Cylinder-head gasket is leaking - Replace the gasket as required.
Injection timing is improper - Adjust according to specifications.
Fuel injection pump is faulty - Install a new pump or rebuild.
One of moving engine components has failed - Change or repair damaged parts.
Damaged radiator cap or dirty radiator core - Install new cap or clean radiator.
Engine has a lack of coolant - Add coolant fluid to cooling system and also check it for leaks.
Loose or defective fan belt - Replace the fan belt.
Engine oil level low - Check oil level and add oil as required.
Cylinder head gasket is damaged - Install new cylinder head gasket.
Improper injection timing - Set up as recommended.
Engine oil level low - Check oil level and add oil as required.
Oil pump malfunction - Check and replace if necessary.
Oil filter is dirty - Change or service engine oil filter.
Worn or dirty relief valve - Change or service relief valve.
Excessive crankshaft bearing clearance - Test and repair or replace worn parts.
Excessive crankpin bearing clearance - Test and repair or replace worn parts.
Oil leaking: Worn gaskets or seals - Defective components must be replaced.
Crankcase oil too light - Use oil of correct viscosity.
Seized or wear piston rings - Piston rings need to be replaced.
Damaged valve stems or valve guides - Valves need to be changed.
Scored pistons or cylinder liners - Inspect liners and pistons, replace as necessary.
| Engine knocking sound or abnormal noise |
Low coolant temperature - Warm up to required temperature.
Engine oil insufficient - Check oil level and add oil as required.
Improper fuel injection timing - Set the fuel pump timing correctly.
Pistons are broken or worn - Pistons need to be replaced.
Connecting rod is worn or misaligned - Align or replace connecting rod.
Low battery output - Battery is drained, charge it.
Battery won’t hold charge - Service or change the battery.
Wires are disconnected or battery terminals are corroded - Check wiring and clean or replace terminals.
Battery is discharged or defective - Replace or charge as required.
Battery wires are disconnected or incorrectly connected - Check wires and connect correctly.
Low battery capacity - Battery needs to be recharged.
Faulty starter motor - Starter should be changed.
____________________________________________________________________________________
| Industrial Engines Technical Specifications |
| Small Engines Technical Specifications |
| Car Engines Technical Specifications |
| Outboard Engines Technical Specifications |
