Combustion Gas Leak Tester Kit with 3 Test Caps

Failure of the cooling system can be resulted from several reasons, including leaks in the hoses leading to the cooling system unable to hold the pressure and the ability to cool the engine down, or at least to keep the engine at proper working temperature, decreases. In this case, you may want to check the leaks by pressurizing the cooling system with another popular tool set from Cosda, which can be found at the bottom of this page. When the cooling system cannot be pressurized anymore, the boiling point of the coolant will be decreased and some portion of the coolant will become water vapor and escaped into the air.  

Another possible reason for the cooling system failure can be caused by the failure of the head gasket, which is located between cylinder head and cylinder block to make both parts become more seamless. The head gasket may wear out over time because of the harsh working environment and that allows the combusted air or exhaust air from combustion chamber, coolant, and engine oil to mix altogether, or one goes into another's system. For example, if the engine oil goes into the cooling system, which can be observed by finding a thin layer of oil floating on the surface of the coolant when the coolant is drained, the coolant cannot do its cooling-the-engine job properly. On the contrary, if the coolant goes into the lubrication system, then the antifreeze and water mixture is not able to lubricate the metallic parts in the engine as well as the engine oil does. Eventually, the head gasket problem becomes cooling and lubrication system problems, and those problems lead to more problems such as engine overheating in the engine compartment like a chain reaction. 

This tool kit uses a smart way to check the head gasket without needing to remove the cylinder head. By checking if there's presence of CO2 in the coolant, we are able to determine if the combustion chamber exhaust air is introduced into the cooling system. After connecting the tool to the radiator filler neck, let the engine run for a while, and the cooling system temperature builds up. The vapor from the cooling system will be collected by this tool, and you can pump the rubber bulb on top of the test chambers to draw more vapor.

If the tester fluid color changes from blue to green if CO2 is found in the cooling system. If the amount of CO2 is high, the test fluid may even turn yellow. 

This tester fluid is manufactured in the US. The high quality makes you reassured that the test fluid does not give you a false alarm. What’s even more exciting is that the tester fluid can be used multiple times. An empty bottle is included in this kit so you can pour the used fluid in there. The color of the tester fluid will turn back to blue after a couple of days, and you can simply use it again and again until the color never turns back to blue. 

We are very experienced with shipping this tool internationally. If you are thinking about ordering this tool set in bulk, we can also provide a Safety Data Sheet (SDS) if the logistics carrier has doubts or requires such a document. 

This kit comes with three steel cap adapters, that fit to the majority of Japanese and Korean cars and some American cars, and the conical adapter fits to most cars with a threaded cap on the expansion tanks, which is usually the case on European cars and some American vehicles. To sum up, this tool kit basically fits almost every car. If you think that the three steel cap adapters may not be necessary, we also have another set that does not include those adapters. 

Just write to us directly if you have further questions, and we can discuss more in detail from there. Looking forward to hearing from you!