Cat 3116 Troubleshooting
| Engine Model: Caterpillar 3116 |
| Engine Type: 4-cycle inline 6-cylinder direct injection liquid-cooled diesel |
| Total Displacement: 403 cu.in (6.6 L) |
| Rated Engine Power: 140-300 Hp (104-224 kW) at 2200 rpm |
| Aspiration Type: Naturally aspirated |
____________________________________________________________________________________
| Engine starts hard or won't start |
Fuel filter plugged - Replace the filter element.
Air in the fuel pipes - Bleed the fuel pipes.
Clogged or burnt injection nozzle - Check and replace nozzles if required.
Fuel injection pump is not working correctly - Change pump or rebuild it.
Valve timing is wrong - Use correct valve timing adjustment.
Fuel pipes clogging - Clean or change fuel pipes.
Improper injection timing - Check injection timing adjustment.
Worn piston rings and cylinder - Change defective parts.
| Diesel starts but immediately stops |
Fuel filter element clogging - Change the filter element.
Fuel injection pump is damaged - Repair or install new pump.
Air cleaner is dirty - Service air cleaner.
Incorrect nozzle opening pressure - Adjust according to specifications.
| Engine stops unexpectedly during operation |
Fuel injection timing is wrong - Set the fuel pump timing correctly.
Fuel filter element is clogged - Change filter element.
Low coolant temperature - Normalize the temperature by warming up the engine.
Stuck or clogged injection nozzle - Repair or change injection nozzles.
Incorrectly adjusted low idle speed - Adjustment required.
The valve clearance is not adjusted - Check and adjust as required.
Fuel injection pump failure - Repair or install a new fuel pump.
Defective or clogged injection nozzle - Change fuel injection nozzles.
Clogged fuel lines or hoses - Service fuel lines and hoses.
Dirty air filter element - Change air filter element.
Cylinder head gasket is defective - Gasket should be replaced.
Injection timing is out of adjustment - Adjust injection timing as required.
Fuel injection pump is broken - Change pump or rebuild it.
One of moving engine parts is faulty - Repair or replace defective components.
Faulty radiator cap or dirty radiator fins - Clean radiator or replace cap.
Engine has a lack of coolant - Fill radiator to proper level and check components for faults.
Fan belt slipping or worn - Fan belt must be replaced.
Insufficient engine oil - Fill the crankcase with engine oil.
Blown cylinder head gasket - Replace cylinder head gasket.
Wrong injection timing - Check injection timing adjustment.
Lack of oil - Check and refill the oil.
Oil pump is defective - Install a new pump.
Oil filter clogged - Change or service engine oil filter.
Relief valve is seized or worn - Replace or service relief valve.
Excessive crankshaft bearing clearance - Inspect and replace or repair faulty parts.
Crankpin bearing clearance is excessive - Inspect and replace or repair faulty parts.
| Engine using too much oil |
Oil leakage: Seals or gaskets are wearing excessively - Defective components must be replaced.
Incorrect oil viscosity - Fill up with the proper oil viscosity.
Piston rings are seized or worn - Piston rings need to be replaced.
Damaged valve guides or valve stems - Need to replace the valves.
Scored pistons or cylinder liners - Inspect pistons and liners, fit new components as necessary.
| Engine knocking sound or abnormal noise |
Low coolant temperature - Normalize the temperature by warming up the engine.
Insufficient engine oil - Check and refill engine oil.
Improper setting of fuel injection pump timing - Set the fuel pump timing correctly.
Pistons are broken or worn - Replace the pistons as required.
Connecting rod is not aligned or defective - Alignment procedure or replacement is required.
| Starter motor cranks slow |
Low battery output voltage - Battery needs to be recharged.
Battery discharges quickly - Service battery or change it.
Disconnected wires or corroded battery terminals - Check cable connections and replace or service terminals.
Battery is discharged or worn - Replace or charge as required.
Wiring is incorrectly connected or disconnected - Inspect wiring and connect correctly.
Battery voltage is low - Charge the battery.
Starter motor is faulty - Repair or replace starter.
____________________________________________________________________________________
| Industrial Engines Technical Specifications |
| Small Engines Technical Specifications |
| Car Engines Technical Specifications |
| Outboard Engines Technical Specifications |
