• Do not stake the areas protruding around the pipes, brackets or tank ribs. • The points shown in the illustration cannot be staked with the SST. Use pliers and be careful not to damage the core plate. 6. INSPECT FOR WATER LEAKS (a) Tighten the drain plug. (b) Plug the oil cooler pipes to prevent any water leakage into the oil cooler. (c) Plug the inlet and outlet pipes of the radiator with SST. SST 09230-00010 (d) Using a radiator tester, apply pressure to the radiator. Test pressure: 1.5 kg/cm² (21 psi, 147 kPa) (e) Inspect for water leaks. HINT: On radiators with resin tanks, there is a clearance between the core plate and tank plate where a minute amount of air will remain, giving the appearance of an air leak when the radiator is submerged in water. Therefore, before performing the water leak test, first swash the radiator around in the water until all air bubbles disappear. 7. PAINT TANK PLATES HINT: If the water leak test checks out okay, allow the radiator to completely dry and then paint the tank plates.