There are a number of products on the market designed to make sealing a leak in your radiator simple and easy.  Although there are multiple brands, the methodology of these leak sealant products is fairly universal.  Start by ensuring the engine is off and cool.  Remove the radiator cap and pour the contents of the leak sealant directly into the cooling system.  Top it off with a coolant and water mixture if your vehicle’s engine is currently low.  Replace the radiator cap and start the engine.  The leak will seal as the sealant makes its way through your coolant system.  This method is not as permanent as professional radiator repair or an epoxy, but will suffice to seal small leaks until more permanent repairs can be made. Allow the engine to run for 5-10 minutes while the stop leak product makes its way through the coolant system. After running it, allow the engine to sit overnight as the sealant sets. When you identify a visible crack, clean the area around it thoroughly.  Any remaining grease or dirt in the area may prevent the epoxy from establishing a seal.  Use a brake cleaner and a rag to help you remove stuck on grime.  Once the area is clean, allow it to dry completely before attempting to use the epoxy.  Knead the epoxy in your hand until it becomes malleable enough for you to spread it out over the crack.  Remember to be thorough and to keep the epoxy at least an eighth of an inch thick so it can withstand the pressures of the coolant system when the vehicle is running.  You can purchase radiator epoxy at most auto parts stores. Allow the epoxy to set overnight before starting the vehicle. Eggs are not a good long term solution, but they can actually seal pinhole leaks in your radiator until you are able to have it properly repaired.  Start by separating the egg yolks from the whites.  Discard the whites, then put the yolks from three or four eggs into your coolant system through the radiator cap.  Start the engine just as you would with a leak sealant and allow the egg yolk to travel through the coolant system.  The yolks will congeal and seal small leaks in your radiator and allow it to hold pressure long enough to get you home or to a garage to have repairs done.  Using egg yolks could potentially lead to clogs in your coolant lines and is not recommended except in emergencies. This method is less reliable than the commercial products you can use to permanently repair your radiator. Pepper is another unlikely tool you can use to slow or stop a small leak in your radiator long enough to make it home or to a garage for repairs.  Wait for the engine to cool completely, then open the radiator cap and pour in about a half a pepper shaker’s worth of common black pepper.  The pepper, like sealant or egg yolks, will travel through the coolant system and get caught in the crack as the pressure tries to flush it out.  This will create a temporary seal that you can use to hold coolant and pressure long enough to drive for a short time.  Like egg yolks, this method is not recommended unless you are in an emergency and is less reliable than commercial products. Pepper may be able to seal longer cracks than egg yolks, but is only recommended for small leaks. Regardless of the method you used to seal the leak in your radiator, it’s important that you check on the repair once you’ve given it an opportunity to set.  After driving the vehicle for a short time, keep an eye out for signs of leaking.  If you believe you may still be leaking coolant, conduct the same tests to try to identify the source of the leak.  There may be multiple leaks or your repair may not have sufficiently sealed the system.  Identify any new leaks and repeat the process.  Egg yolks and pepper are not meant to be permanent solutions to a radiator leak.  Consider using a leak sealant or epoxy to sure up the repair once you make it home. Significant cracks may be beyond repair.  In those cases, your radiator will likely need to be replaced. Make sure to refill your coolant system with a 50/50 water and coolant mix any time it is low.
कमर्शियल लीक सीलेंट (commercial leak sealant) का इस्तेमाल करें: दिखाई पड़ने वाली दरारों के लिए एपोक्सी का इस्तेमाल करिए: लीक करते हुये रेडिएटर को सील करने के लिए अंडे का इस्तेमाल करिए: छोटी लीक्स को सील करने के लिए पेप्पर (pepper) का इस्तेमाल करिए: मरम्मत पर ध्यान दीजिये: