Cat 3116TA Troubleshooting
| Engine Model: Caterpillar 3116TA |
| Engine Type: 4-cycle inline 6-cylinder turbocharged and aftercooled diesel |
| Total Displacement: 402 cu.in (6.6 L) |
| Rated Engine Power: 161-177 Hp (120-132 kW) at 2400 rpm |
| Fuel System Type: Direct fuel injection |
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| Engine hard to start or will not start |
Clogged fuel filter - Clean or replace the filter.
Air in fuel system - Bleed fuel system.
Defective or clogged injection nozzle - Check and replace nozzles if required.
Fuel injection pump is broken - Change or repair the pump.
Wrong valve timing - Adjust or change timing gear.
Restricted fuel pipes - Clean or replace fuel pipes.
Injection timing is out of adjustment - Check injection timing adjustment.
Worn piston rings and cylinder - Replace defective components.
| Diesel starts but then stops |
Fuel filter element is dirty - Change filter element.
Defective fuel injection pump - Repair or install new pump.
Clogged air cleaner - Service air cleaner.
Improper nozzle opening pressure - Adjust as recommended.
| Engine stops suddenly during operation |
Fuel injection timing is wrong - Adjust as recommended.
Clogged fuel filter - Change filter element.
Engine is not fully warmed up - Warm up engine as required.
Injection nozzles are jammed or clogged - Service or change injection nozzles.
Incorrectly set low idle speed - Need to adjust idle speed.
Valve clearance is wrong - Check and adjust as required.
Faulty fuel injection pump - Replace injection pump or repair it.
Dirty or damaged injection nozzles - Change fuel injection nozzles.
Fuel lines or hoses clogging - Clean fuel lines and hoses.
Restricted intake air - Clean or replace element.
Cylinder head gasket is defective - Replace cylinder head gasket.
Wrong injection timing - Adjust according to specifications.
Fuel injection pump is broken - Replace or repair injection pump.
One of moving engine components has failed - Repair or replace defective components.
Clogged radiator fins or damaged radiator cap - Replace cap or clean radiator.
Lack of engine coolant - Top up coolant fluid and check system for leaks.
Fan belt is worn or faulty - Install new fan belt.
Low engine oil level - Checking oil level and add if necessary.
Cylinder head gasket is defective - Cylinder-head gasket replacement required.
Injection timing is improper - Set the injection timing correctly.
| Insufficient oil pressure |
Oil level is insufficient - Fill crankcase to proper oil level.
Oil pump is defective - Repair or change.
Oil filter element is dirty - Clean or replace engine oil filter element.
Stuck or defective relief valve - Replace or service relief valve.
Excessive crankshaft bearing clearance - Check and replace or repair defective parts.
Excessive crankpin bearing clearance - Test and repair or replace worn parts.
| Excessive engine oil consumption |
Oil leakage: Seals or gaskets are wearing excessively - New components need to be installed.
Wrong oil viscosity - Use correct viscosity oil.
Piston rings are stuck or broken - Install new piston rings.
Damaged valve stems or valve guides - Change the valves.
Scuffed cylinder liners or pistons - Inspect liners and pistons, replace as necessary.
Engine is not preheated - Warm up engine as required.
Lack of engine oil - Need to add engine oil.
Fuel injection pump timing is wrong - Use the correct fuel injection pump timing adjustment.
Pistons are worn or broken - Install new pistons.
Connecting rod is not aligned or defective - Align or change connecting rod.
| Starter motor cranks slow |
Low battery power - Battery needs to be recharged.
Battery discharges quickly - Service charging system or install new battery.
Disconnected wires or corroded battery terminals - Check wiring and clean or replace terminals.
Battery is drained or worn - Recharge or replace battery.
Battery wires are disconnected or incorrectly connected - Check wires and connect correctly.
Low battery output - Recharge the battery.
Faulty starter motor - Starter needs to be changed.
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