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| Home / Car Engines / Nissan Engines / Nissan A10 |
Nissan A10 Troubleshooting
| Engine hard to start or doesn't start |
No fuel in fuel tank - Add gasoline.
Low-quality gasoline - Use correct gasoline grade.
Dirty fuel system - Check and clean.
Defective wiring connection of spark plug - Check the spark plug wire connection, repair or replace.
Spark plug is damaged - Change spark plug.
Ignition system problems - Inspect ignition system and change failed components.
Clogged fuel filter - Change fuel filter.
Dirt in the fuel lines - Service fuel lines.
Clogged or damaged fuel pump - Clean or change fuel pump.
Carburetor settings incorrect - Adjusting as required.
Poor compression - Inspect and replace wear parts.
| Irregular engine running |
Defective ignition - Inspect ignition system and change faulty parts.
Plugged air filter - Clean or change filter.
Faulty spark plug - Replace spark plug.
Dirty or damaged fuel pump - Clean or install new fuel pump.
Valve clearance is wrong - Adjust to proper valve clearance.
Ignition timing is wrong - Adjust ignition timing correctly.
Incorrectly set low idle speed - Need to adjust idle speed.
| Engine starts but immediately shuts off |
Faulty spark plug - Change spark plug as required.
Carburetor is faulty or dirty - Service or replace carburetor.
Ignition coil is defective - Replace ignition coil as necessary.
Broken or loose valve springs - Install new valve springs.
Valves sticking - Valves need to be cleaned.
| Engine overheats |
Insufficient engine oil - Check and refill engine oil.
Engine is under excessive load - Load reducing is recommended.
Too lean carburetor mixture - Adjust carburetor properly.
Ignition timing is wrong - Set the ignition timing correctly.
Valve setting is improper - Valves needs to be adjusted properly.
Radiator core is clogged or radiator cap is leaking - Install new cap or clean radiator.
Coolant level is low - Add coolant and check the components of cooling system.
Defective thermostat - Install new thermostat.
Damaged water pump - Water pump need to be replaced.
| Engine knocking sound or abnormal noise |
Stale fuel - Change gasoline.
Engine overloaded - Load reducing required.
Low engine oil level - Fill up the engine oil.
Incorrect low idle setting - Adjustment required.
Clogged or defective fuel pump - Inspect fuel pump and change as required.
Crankshaft or main bearings wear - Replace crankshaft or bearings.
Improper valve clearance - Adjustment procedure required.
Damaged cylinder bore or piston rings - Replace faulty parts.
| Engine power is insufficient |
Incorrectly adjusted or clogged carburetor - Carburetor needs to be adjusted correctly or cleaned.
Clogged air filter - Clean or replace air filter.
Fuel pump is dirty or defective - Inspect fuel pump and change as required.
Ignition system is defective - Inspect ignition system and change faulty parts.
Defective cylinder head gasket - Change cylinder head gasket.
Valves are stuck or burned - Clean or replace valves.
Faulty cylinder block components - Change defective parts.
Oil filter is dirty - Change or service oil filter.
| High fuel consumption |
Air filter is dirty - Service or replace air filter.
Improper adjustment of carburetor main jet - Adjust the carburetor main jet properly.
Spark plug is loose or faulty - Spark plug need to be replaced or tightened.
Bad ignition timing - Adjust ignition timing as required.
Valves are worn, burned or stuck - Clean or change valves.
Sleeve, piston, or rings are damaged - Replace faulty parts as required.
Improper valve clearance - Adjust to proper valve clearance.
Weak cylinder compression - Inspect cylinder block and change worn parts.
| High engine oil consumption |
Worn seals or gaskets - Change worn parts according to specifications.
Valve guides or stems are damaged - Replace the valves.
Worn or broken piston rings - Install new piston rings.
Piston or cylinder liner is worn - Inspect piston and liner, fit new components as necessary.
| Engine backfires |
Too lean carburetor mixture - Adjust carburetor properly.
Fuel lines are dirty - Fuel lines must be clean.
Wrong ignition timing - Set the ignition timing properly.
Incorrect valve setting - Valves needs to be adjusted properly.
Air filter element is plugged - Replace or service air filter.
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