A high percentage of CaterpillarŪ radiator failures are due to seal problems. The most common, are shown below.
Common OEM Seal Failures
Heat Exhaustion
This can occur when the operating temperature range of the rubber has been exceeded. The effects on the seal can include reduction of seal flexibility and hardening, leading to leakage.
Oil/Diesel Contamination
This is a common problem in cooling systems. If an oil cooler bundle leaks or a cylinder line cracks, radiator seals can be exposed to fuel/oil through the cooling system. If the seals are not rated for these fluids they can start to absorb them, then often swelling up and becoming soft and "spongy". Once this occurs the radiators will begin to leak.
Incorrect Installation
Care must be taken to align the radiator with the seals. If a seal is "pinched" during reassembly it can often reduce the service life of the radiator.
Micon Industries has spent years developing the HT Series Seals; the rubber formulation was developed specifically for radiators operating in all kinds of environments from everyday applications to the most extreme. The HT Series Seals are completely oil & fuel resistant and can operate at extremely high or low temperatures for years. The compound has incredible memory set resistance even after years of service in harsh environments. The HT Series Seals are regarded as the very best by cooling system professionals worldwide. Avoid failures and costly down time, use HT Series Seals.