FTG Technical Tuesday – Radiator Cleanliness. The biggest cause of overheating is a clogged or dirty radiator. Silt, sand and other debris can get stuck between the fins of your radiator. This causes the air from the fan to be blocked and not allowing it to pull the heat from the fins. Radiators should be checked and cleaned weekly (more so when used in an extremely dusty environment). Only low to medium pressure compressed air should be used. High air or water pressure may cause the fins to bend and block air flow. Pressure washer should only be used as a last resort on a completely plugged radiator.
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