![]() By proactively maintaining your vehicle's cooling system, freeze plugs are less likely to fail. In addition to using the right coolant, consider getting your vehicle's cooling system flushed at least once every two to three years. But sadly most METAL ones seize and corode or rust, and dont do there job. If you only use water - or if you don't use enough antifreeze - your engine's freeze plugs may pop and fail. Yea the freeze plugs are actualy for casting purposes to romove excess sand after the casting problem, as well as for when your motor freeze they are suppose to pop out. Even if it's distilled water, it probably needs a specific amount of antifreeze as well. To prolong the life of your engine's freeze plugs, be sure to use the correct coolant as recommended by the automaker. ![]() In other words, coolant will leak out your engine through the freeze plug's passage. Once a freeze plug has popped out of the engine, it will create a breach in the cooling system. Freeze plugs prevent this from happening by allowing the frozen water to expand out the plugs' passages.Īfter a freeze plug has failed, however, it must be replaced. Water expands as it freezes, and the pressure created by this expansion can cause cracks to form. If the coolant inside an engine freezes, it may cause the block to crack. Final Block Preparation Make sure all freeze plugs are removed, all threaded ports open. Freeze plugs were originally used to protect engines from cold-related damage. Remove 1 the freeze plug by drilling a 3/8-inch hole. This isn't necessarily a bad thing, though. Nonetheless, you should still use caution to protect your engine's freeze plugs from failure.įreeze plugs typically fail by freezing. They use a combination of water and antifreeze. Automobiles today no longer use plain water as coolant. ![]() When the water coolant inside a vehicle's engine froze, its freeze plugs would push out. While effecting at removing heat, plain water is susceptible to freezing. In the past, plain water was used to cool combustion engines. To fill these passages - and therefore protect against coolant leaks - automakers use freeze plugs. During production, passages are created in engines that allows for the removal of casting sand. And if your engine's freeze plugs fail, it could lead to catastrophic damage that's both costly and difficult to repair.įreeze plugs are small, cylindrical-shaped plugs that are used to fill the passages in an engine created by the sand cores. While freeze plugs often last for hundreds of thousands of miles, they aren't immune to failure. Unfortunately, though, many drivers rarely or ever check their vehicle's freeze plugs. Designed to be installed in the side of your engine block to pull water out and. Also known as core plugs, freeze plugs play an important role in protecting automotive engines from cold-related damage. A great item from King Racing Products are these Water Return Freeze Plugs.
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