Cummins KT19 Troubleshooting
| Engine Model: Cummins KT19 |
| Engine Type: 4-cycle inline 6-cylinder direct injection liquid-cooled diesel |
| Total Displacement: 1159 cu.in (19 L) |
| Rated Engine Power: 400-700 Hp (298-522 kW) at 2000 rpm |
| Aspiration Type: Turbocharged |
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| Engine difficult to start or won't start |
Dirty fuel filter - Clean or replace the filter.
Air in the fuel system - Air bleeding.
Fuel injection nozzles fault - Change fuel injection nozzles.
Fuel injection pump malfunction - Rebuild or replace pump.
Unadjusted valve timing - Adjust or change timing gear.
Restricted fuel pipes - Clean fuel pipes.
Incorrect injection timing - Check injection timing adjustment.
Worn cylinder or piston rings - Replace defective components.
| Engine starts and then shuts off |
Fuel filter element clogging - Change filter element.
Damaged fuel injection pump - Repair or replace injection pump.
Air filter plugged - Clean air cleaner element.
Incorrect nozzle opening pressure - Adjust as recommended.
| Engine stops running suddenly |
Improper setting of fuel injection pump timing - Use the correct fuel injection pump timing adjustment.
Clogged fuel filter - Install new filter element.
Low coolant temperature - Warm up engine as required.
Injection nozzles are stuck or clogged - Change or repair injection nozzles.
| Engine stalls at low idle speed |
Low idle speed setting is not correct - Adjust the low idle speed.
Valve out of adjustment - Have it adjusted.
Fuel injection pump malfunctioning - Repair or replace injection pump.
Damaged or dirty injection nozzles - Install a new kit of correctly balanced nozzles.
Clogged fuel hoses or lines - Service fuel hoses and lines.
Restricted intake air - Clean or replace element.
Damaged cylinder-head gasket - Install new cylinder head gasket.
Injection timing is out of adjustment - Use correct injection timing adjustment.
Fuel injection pump malfunctioning - Install a new pump or rebuild.
One of moving engine parts has broken - Repair or replace defective components.
Defective radiator cap or clogged radiator fins - Change cap or clean radiator.
Not enough coolant - The cooling system needs to be refilled and checked for faults.
Fan belt is broken or worn - Change as required.
Engine oil level is insufficient - Add oil to the engine crankcase.
Damaged cylinder-head gasket - Change cylinder head gasket.
Improper injection timing - Use correct injection timing adjustment.
| Oil pressure is insufficient |
Oil level is insufficient - Add oil to the engine crankcase.
Worn oil pump - Repair or change.
Plugged engine oil filter - Replace or clean engine oil filter element.
Relief valve is stuck or worn - Replace or clean relief valve.
Crankshaft bearing clearance is excessive - Inspect and change or repair worn components.
Excessive crankpin bearing clearance - Test and repair or replace worn parts.
| Diesel engine using too much oil |
Oil leaking: Seals or gaskets are defective - New components need to be installed.
Wrong oil viscosity - Use correct viscosity oil.
Piston rings are seized or worn - Have piston rings replaced.
Valve guides or stems are damaged - Valves need to be changed.
Worn cylinder liners or pistons - Inspect liners and pistons, change as necessary.
Engine is cold - Warm up engine as required.
Not enough engine oil - Check and refill engine oil.
Fuel injection pump timing is not adjusted - Use the correct fuel injection pump timing adjustment.
Worn or scored pistons - Replace the pistons as required.
Connecting rod is misaligned or worn - Alignment procedure or replacement is required.
Battery capacity is low - Battery needs to be recharged.
Battery is draining quickly - Service battery or change it.
Disconnected cables or faulty battery terminals - Check wire connections and change or service terminals.
Battery is discharged or defective - Recharge or replace battery.
Battery wires are disconnected or incorrectly connected - Check wires and connect correctly.
Battery capacity is low - Recharge the battery.
Starter motor is defective - Starter needs to be replaced.
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