Perkins 4.236 Troubleshooting
| Engine Model: Perkins 4.236, A4.236 |
| Engine Type: 4-cycle vertical 4-cylinder direct injection liquid-cooled diesel |
| Total Displacement: 236 cu.in (3.86 L) |
| Rated Engine Power: 81 Hp (60 kW) at 2800 rpm |
| Aspiration Type: Naturally aspirated |
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| Engine difficult to start or will not start |
Dirty fuel filter - Service or replace the filter.
There is air in the fuel system - Bleed the system.
Clogged or burnt injection nozzle - Service or change injection nozzles.
Fuel injection pump is broken - Rebuild or replace pump.
Incorrect valve timing - Correct or replace timing gear.
Fuel pipes are dirty - Clean or change fuel pipes.
Injection timing is out of adjustment - Use correct injection timing adjustment.
Worn cylinder or piston rings - Change defective parts.
| Engine starts but immediately stalls |
Dirty fuel filter - Service the filter.
Faulty fuel injection pump - Change pump or rebuild it.
Clogged air cleaner - Replace air filter element.
Nozzle opening pressure is improper - Adjust according to specifications.
| Engine stalls during operation |
Incorrect adjustment of fuel injection pump timing - Adjust fuel injection pump as required.
Fuel filter plugging - Clean or change the filter.
Engine not warmed up - Warm up to required temperature.
Injection nozzles are burnt or jammed - Change or repair injection nozzles.
| Engine stops at low idle speed |
Incorrectly set low idle speed - Adjust as required.
Improper valve clearance - Correct valve clearance needs to be set.
Fuel injection pump is not working correctly - Install a new pump or rebuild.
Faulty or dirty injection nozzles - Test injection nozzles and change if necessary.
Dirt in the fuel lines or hoses - Clean fuel lines and hoses.
Dirty air cleaner - Clean or replace element.
Worn cylinder head gasket - Cylinder-head gasket replacement required.
Injection timing is improper - Adjust injection timing as required.
Fuel injection pump is faulty - Change pump or rebuild it.
Any of moving engine parts is worn - Change or repair damaged parts.
Dirty radiator core or faulty radiator cap - Clean radiator or replace cap.
Lack of engine coolant - Add coolant fluid and inspect the cooling system for leaks.
Excessive wear of the fan belt - Replace the fan belt.
Engine oil level is insufficient - Check and refill engine oil.
Blown cylinder head gasket - Cylinder-head gasket replacement required.
Injection timing is improper - Set the injection timing correctly.
| Oil pressure is insufficient |
Insufficient engine oil - Checking oil level and add if necessary.
Worn oil pump - Remove and inspect oil pump.
Oil filter element is dirty - Change or service engine oil filter.
Stuck or worn relief valve - Change or service relief valve.
Crankshaft bearing clearance is excessive - Test and replace or repair worn components.
Clearance of crankpin bearing is excessive - Test and repair or replace worn parts.
| Excessive engine oil consumption |
Oil leakage: Seals or gaskets are defective - Defective components must be replaced.
Oil viscosity is incorrect - Use correct viscosity oil.
Worn or stuck piston rings - Install new piston rings.
Valve guides or stems are damaged - Valves must be replaced.
Cylinder liners or pistons are worn - Check pistons and liners, replace as required.
Engine is not fully warmed up - Warm up engine as required.
Low engine oil level - Checking oil level and add if necessary.
Improper setting of fuel injection pump timing - Adjust as recommended.
Pistons are worn or broken - Pistons replacement required.
Connecting rod is misaligned or worn - Need to align or replace the connecting rod.
Low battery power - Battery is drained, charge it.
Battery drains quickly - Service battery or change it.
Battery terminals are corroded or wires are disconnected - Check wiring connections and replace or clean terminals.
Battery is drained or worn - Charge or change the battery.
Wiring harness is disconnected or improperly connected - Check wiring harness and connect as required.
Low battery output voltage - Battery is drained, charge it.
Defective starter motor - Repair or install a new starter.
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