Contents: Swollen hose ⇓ Cracked hose ⇓ Wear of the hose end (due to weak…⇓ Dirt in the cooling system ⇓
Both upper and lower radiator hoses do hard work in adverse conditions. They are subject to pressures of up to 1.5 kg/cm² and temperatures of over 100°C, and must pass approximately 30,000 litres of coolant per hour – so their condition must be monitored.
Swollen hose
A good test for a hose is to feel it for softness and porosity. Often these defects appear as swollen areas on the hose. The most likely cause is exposure to oil. The hose can burst at any time when it is hot and under pressure.
Cracked hose
Cracked hoses appear because usually the hoses are simply inspected, but not felt, whether they are hard.
Wear of the hose end (due to weak clamping)
Loose clamps are a common cause of damage to coolant hoses. The tube-hose connection wears out and fluid leaks out when the engine is hot.
Dirt in the cooling system
Dirt, rust and scale in the cooling system will cause wear on the inside of the hose. This can be felt externally as a soft or refined place.
[The original text is published on the website: HYUNDAIBOOK]