Hi, use a syringe to join from the hole above the radiator. When it is full, turn the engine flywheel by hand to make the pump work continuously. At the same time, it will continue to inject water. The pump will pump water into the cylinder. Loosen the drain screw on the cylinder. When the pumped water reaches the highest position, the water will leak out of the screw. At this time, tighten the screw to stop adding water.
Jin
Thank you Jin, I will give that a try tomorrow.
Roger