If you’re planning any DIY repair work with silicone hoses, then we hope someone has already advised you to invest in new silicone hose clamps, too. If not, then consider yourself officially warned!
Many DIY mechanics choose to use silicone hoses instead of traditional rubber hoses with their radiator. Usually when replacing hoses, it’s best to invest in new hose clamps at the same time. And since silicone hoses are typically thicker than rubber alternatives, you might need new large hose clamps anyway. But that’s not the only reason you should purchase silicone hose clamps.
When working with soft-surface hoses, like silicone, it’s crucial that you use only special types of hose clampsspecifically designed for such uses. Most hose clamps have a long row of perforations inside the clamp; those notches are used to adjust the diameter of the clamp. But when using silicone hoses, these notches can damage the integrity of the hose. This can cause extrusion or shearing, and over time, compromises the continuity and strength of the seal, leading to cracks, shearing, and even leaks.
So how do silicone hose clamps work? These automotive hose clamps have a special liner that extends along the inside band of the clamp, covering the perforations and protecting the hose. And if you buy the right radiator hose clamps, the liner won’t cause any bumps that will hurt the quality of your seal.
But even after placing your new hose clamps, it’s important to continue checking them every 12 months. Make sure the engine is off and cool, then look for signs of wear and tear in the clamps, as well as obvious damage or signs of leaks. If you find any loose clamps, tighten them (without over tightening!). You can also use your thumb and fingers to test the hose itself for weak spots. Do this by squeezing the hose near the clamps, the middle, and ends of the hose. If something doesn’t feel right, or if the silicone hose doesn’t have a uniform feel throughout its length, then it’s time to replace it.
