International D155 Troubleshooting
| Engine Model: International Harvester D155 |
| Engine Type: 4-cycle inline 3-cylinder naturally aspirated liquid-cooled diesel |
| Total Displacement: 155 cu.in (2.5 L) |
| Rated Engine Power: 45 Hp (33 kW) at 2500 rpm |
| Fuel System Type: Direct or indirect fuel injection |
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| Engine starts hard or doesn't start |
Fuel filter element clogging - Change filter element.
There is air in the fuel system - Bleed the system.
Defective injection nozzle - Clean or change injection nozzles.
Fuel injection pump damage - Install a new pump or rebuild.
Valve timing is improper - Set the valve timing correctly.
Fuel pipes are plugged - Service fuel pipes.
Injection timing is out of adjustment - Adjust according to specifications.
Worn piston rings and cylinder - Change faulty components.
| Engine starts but then stalls |
Fuel filter plugged - Filter maintenance required.
Fuel injection pump damage - Change pump or rebuild it.
Dirty air filter element - Service or replace the air filter.
Nozzle opening pressure is incorrect - Adjust as recommended.
| Engine stops unexpectedly during operation |
Fuel injection timing is not adjusted - Adjust according to specifications.
Fuel filter element clogging - Clean the filter or install new filter element.
Low coolant temperature - Normalize the temperature by warming up the engine.
Injection nozzles are burnt or jammed - Service or change injection nozzles.
Low idle speed setting is not correct - Adjust low idle speed.
Valve clearance is not correct - Need to adjust valve clearance.
Fuel injection pump failure - Install a new fuel pump or repair.
| Diesel engine loses power |
Defective or clogged injection nozzle - Check and replace nozzles if required.
Dirt in the fuel hoses or lines - Clean fuel system hoses and lines.
Air filter is dirty - Service air cleaner.
Worn cylinder head gasket - Install a new gasket.
Unadjusted injection timing - Adjust as recommended.
Fuel injection pump is broken - Replacement or repair required.
Any of moving engine components is faulty - Repair or replace defective components.
Radiator core is clogged or radiator cap is leaking - Clean radiator or install new cap.
Lack of coolant in cooling system - Add coolant fluid and inspect the cooling system for leaks.
Loose or damaged fan belt - Install new fan belt.
Engine oil insufficient - Fill up the oil to required level.
Blown cylinder head gasket - Install new cylinder head gasket.
Wrong injection timing - Adjust as recommended.
Low oil level - Add oil to the engine crankcase.
Worn oil pump - Remove and inspect oil pump.
Oil filter clogged - Change or clean engine oil filter element.
Relief valve is stuck or broken - Relief valve need to be replaced or cleaned.
Crankshaft bearing clearance is excessive - Test and repair or replace worn parts.
Excessive crankpin bearing clearance - Test and repair or replace worn parts.
| Excessive oil consumption |
Oil leaking: Damaged gaskets or seals - Replace defective parts.
Crankcase oil too light - Use proper viscosity oil.
Damaged or seized piston rings - Change piston rings.
Worn valve guides and valve stems - Valves must be replaced.
Pistons or cylinder liners are worn - Inspect pistons and liners, fit new components as necessary.
Low coolant temperature - Warm up to required temperature.
Insufficient engine oil - Checking oil level and add if necessary.
Incorrect adjustment of fuel injection pump timing - Adjust fuel injection pump as required.
Scored or worn pistons - Have pistons replaced.
Misaligned or faulty connecting rod - Align or change connecting rod.
| Starter motor cranks slow |
Low battery power - Battery needs to be recharged.
Battery is draining quickly - Service charging system or install new battery.
Wires are disconnected or battery terminals are corroded - Connect wiring properly or install new terminals.
Battery is low or faulty - Recharge or change battery.
Disconnected or incorrectly connected wires - Inspect battery wires and connect correctly.
Low battery output - Battery needs to be recharged.
Starter motor is damaged - Starter needs to be replaced.
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