Cat 3516E Troubleshooting
| Engine Model: Caterpillar 3516E |
| Engine Type: 4-stroke 16-cylinder V-block turbocharged liquid-cooled diesel |
| Total Displacement: 4,765 cu.in (78.1 L) |
| Rated Engine Power: 2100-3386 Hp (1566-2525 kW) at 1800 rpm |
| Fuel System Type: Electronic Unit Injector |
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| Engine difficult to start or doesn't start |
Fuel filter plugged - Service the filter.
Air in fuel system - Bleed fuel system.
Fuel injection nozzles are damaged or dirty - Service or change injection nozzles.
Fuel injection pump is not working correctly - Rebuild or install a new injection pump.
Valve timing is improper - Use correct valve timing adjustment.
Restricted fuel pipes - Clean or change fuel pipes.
Injection timing is out of adjustment - Set the injection timing correctly.
Piston rings and cylinder are worn - Change defective components.
| Engine starts and then shuts off |
Fuel filter element clogging - Clean or change the filter.
Fuel injection pump damage - Change or repair the pump.
Clogged air filter - Clean air cleaner element.
Incorrect nozzle opening pressure - Set it correctly.
| Diesel shuts off while driving |
Timing of fuel injection pump is incorrect - Adjust the pump as required.
Fuel filter element is dirty - Filter maintenance required.
Engine is not fully warmed up - Warm up to required temperature.
Stuck or burnt injection nozzle - Clean or change injection nozzles.
| Engine stops while idling |
Incorrect low idle setting - Adjust the low idle speed.
Valve out of adjustment - Have it adjusted.
Damaged fuel injection pump - Install a new pump or rebuild.
Defective injection nozzle - Install a new kit of correctly balanced nozzles.
Fuel lines or hoses are clogged - Fuel lines and hoses need to be cleaned.
Dirty air cleaner - Replace air filter element.
Blown cylinder head gasket - Change cylinder head gasket.
Injection timing is improper - Set up as recommended.
Fuel injection pump is faulty - Replacement or repair required.
Any of moving engine components is faulty - Replace or repair damaged components.
Faulty radiator cap or dirty radiator fins - Replace cap or clean radiator.
Lack of engine coolant - Add coolant fluid and inspect the cooling system for leaks.
Fan belt is broken or worn - Belt replacement is recommended.
Engine oil level is insufficient - Check and refill engine oil.
Cylinder head gasket is blown - Replace cylinder head gasket.
Wrong injection timing - Adjust according to specifications.
Engine oil level low - Fill up the engine oil.
Oil pump failure - Repair or change.
Clogged oil filter - Replace or service engine oil filter.
Stuck or worn relief valve - Change or service relief valve.
Excessive crankshaft bearing clearance - Inspect and replace or repair faulty components.
Excessive crankpin bearing clearance - Check and replace or repair defective parts.
| Excessive oil consumption |
Oil leaking: Seals or gaskets are wearing excessively - Replace defective parts.
Crankcase oil too light - Use oil of proper viscosity.
Stuck or defective piston rings - Change the piston rings as required.
Valve stems or guides are damaged - Valves replacement required.
Pistons or cylinder liners are scored - Check liners and pistons, replace as required.
| Abnormal engine knocking or noise |
Engine not warmed up - Warm up the engine.
Not enough engine oil - Check and refill engine oil.
Timing of fuel injection pump is incorrect - Set up as recommended.
Worn or broken pistons - Replace the pistons as required.
Misaligned or defective connecting rod - Align or replace connecting rod.
Battery power is low - Recharge the battery.
Battery will not hold charge - Service charging system or change battery.
Faulty battery terminals or disconnected cables - Connect wires properly or change terminals.
Battery is discharged or defective - Recharge or change battery.
Disconnected or improperly connected wiring harness - Inspect battery wiring harness and connect as required.
Low battery output - Battery is drained, charge it.
Starter motor is faulty - Starter should be replaced.
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