How do you find a leak in a coolant system in a Mazda RX7?

To find a leak in the coolant system of a Mazda RX-7, start by visually inspecting hoses, connections, and the radiator for signs of coolant residue or wetness. You can also use a pressure tester to pressurize the system, which may help reveal leaks by causing coolant to escape. Additionally, check the water pump and the engine block for any signs of leakage. If needed, use a UV dye in the coolant and a UV light to help identify hard-to-see leaks.