Perkins 1004-4 Troubleshooting
| Engine Model: Perkins 1004-4 |
| Engine Type: 4-cycle vertical 4-cylinder direct injection liquid-cooled diesel |
| Total Displacement: 243 cu.in (3.99 L) |
| Rated Engine Power: 90.5 Hp (67 kW) at 2200 rpm |
| Aspiration Type: Naturally aspirated |
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| Engine starts up hard or doesn't start |
Fuel filter plugged - Replace filter element.
Air in fuel system - Bleed fuel system.
Defective or clogged injection nozzle - If necessary, replace with a new nozzle.
Fuel injection pump failure - Repair or install a new fuel pump.
Valve timing is out of adjustment - Adjust or replace timing gear.
Dirt in the fuel lines or hoses - Clean or replace fuel pipes.
Unadjusted injection timing - Set the injection timing correctly.
Damaged piston rings and cylinder - Change faulty components.
| Diesel starts and then shuts off |
Clogged fuel filter - Clean or change the filter.
Fuel injection pump is defective - Repair or change injection pump.
Clogged air filter - Replace air filter element.
Incorrect nozzle opening pressure - Adjust according to specifications.
| Engine shuts off suddenly during operation |
Wrong setting of fuel injection pump timing - Adjust fuel injection pump as required.
Dirty fuel filter - Replace filter element.
Low coolant temperature - Warm up the engine.
Stuck or clogged injection nozzle - Repair or replace injection nozzles.
Incorrect low idle setting - Adjust the low idle speed.
Valve clearance is wrong - Correct valve clearance needs to be set.
Fuel injection pump malfunction - Rebuild or replace pump.
Defective injection nozzle - Service or change injection nozzles.
Clogged fuel hoses or lines - Service fuel lines and hoses.
Air filter element clogged - Change air filter element.
Defective cylinder head gasket - Install new cylinder head gasket.
Incorrect injection timing - Set the injection timing correctly.
Fuel injection pump is defective - Change or repair the pump.
One of moving engine parts is faulty - Change or repair damaged parts.
Clogged radiator core or leaking radiator cap - Clean radiator or change cap.
Coolant level is low - Fill the cooling system and check components for leaks or other faults.
Fan belt is loose or defective - Change the fan belt.
Not enough engine oil - Check and refill engine oil.
Cylinder-head gasket is broken - Install a new gasket.
Wrong injection timing - Adjust as recommended.
Insufficient engine oil - Checking oil level and add if necessary.
Oil pump failure - Repair or change.
Dirty oil filter - Clean or replace engine oil filter element.
Stuck or worn relief valve - Replace or service relief valve.
Crankshaft bearing clearance is excessive - Check and replace or repair defective parts.
Excessive crankpin bearing clearance - Inspect and replace or repair faulty parts.
| Engine using too much oil |
Oil leakage: Defective seals or gaskets - Worn parts need to be replaced.
Incorrect oil viscosity - Fill up with the correct oil viscosity.
Worn or broken piston rings - Have piston rings replaced.
Valve guides or stems are damaged - Install new valves.
Cylinder liners or pistons are scored - Check liners and pistons, install new components as required.
| Engine knocking sound or abnormal noise |
Engine is cold - Normalize the temperature by warming up the engine.
Lack of engine oil - Fill the crankcase with engine oil.
Improper fuel injection timing - Adjust according to specifications.
Worn or scored pistons - Replace the pistons.
Connecting rod is misaligned or worn - Align or change connecting rod.
Low battery output voltage - Battery is drained, recharge it.
Battery won’t hold charge - Battery needs to be serviced or replaced.
Disconnected battery cables or bad terminals - Check wiring connections and replace or clean terminals.
Battery is low or faulty - Charge or replace the battery.
Battery wiring is disconnected or improperly connected - Inspect wiring and connect as required.
Low battery capacity - Battery is drained, recharge it.
Defective starter motor - Starter needs to be replaced.
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