Overheating of Engine

Overheating of Engine Points : overheating of engine, ic engine overheating problems, problems in internal combustion engines Too high a running temperature may lead to local boiling at critical sports in the cylinder head or block — for example around the sparking plug and exhaust valve sealing. This is apt to cause pre-ignition although there may be no outward sign of boiling.

Engine overheating is a serious problem that can cause major engine damage. The driver may notice the engine temperature light glowing, temperature gauge reading high, or coolant boiling. Boiling coolant will expand and blow out though the overflow as steam. Common causes of engine overheating are:

1. Low Coolant Level (leak or lack of maintenance has allowed coolant level in engine and radiator to drop too low.
2. Rust or Scale (mineral accumulations in system have clogged radiator core or built up in water jackets).
3. Stuck Thermostate (thermostat fails to open normally, restricts coolant flow.
4. Retarted Ignition Timing (late ignition timing allows combustion flame to blow out open exhaust valve transferring too much heat into exhaust valves, ports, and manifold).
5. Loose Fan Belt (water pump drive belt slips under load and reduces coolant circulation).
6. Bad Water Pump (broken pump shaft or damaged impeller blades prevent normally pumping action).
7. Coolapsed Lower Hose (suction from water pump may flatten hose if spring is missing or hose is badly deteriorated).
8. Missing Fan Shoround (air circulates between fan and back of radiator, reducing air how through radiator).
9. Ice In Coolant (coolant frozen from lack of antifreeze can block circulation and cause overheating).
10. Engine Fan Problems (fan clutch or electric fan troubles can prevent adequate airflow through radiation).

Any of these or other troubles can make the engine overheat. You must use your knowledge of system operation and basic testing methods to find the problem’s sources. Note: Some Scanners (computer testers) will give temperature sensor readings. This might be helpful when trying to solve engine overheating and other related problems.)