31. Valve seats are often formed by first press-fitting an approximately cylindrical piece of a conical-section of the corresponding valve.32. I am not easily intimidated except in hardware stores filled with highly unfamiliar merchandise like valve seat retrofit kits. 33. These combustion chambers were formed by the two shallow concave domes where the intake and exhaust valve seats were. 34. The solenoid lifts the needle valve from the valve seat , and fuel under pressure is sent in the engine cylinder. 35. These usually can be updated with hardened valve seats that resist wear, regardless of whether leaded or unleaded fuel is used. 36. Turning the handle causes the stem to rise and lifts the washer off the valve seat , enabling the water to flow. 37. Fortunately, each MCA-Jet valve and valve seat are a self-contained cylinder-shaped unit that screws into the cylinder head for easy replacement. 38. The lift wires that guide the ball into position on the valve seat hang up and misalign the ball with the seat. 39. This is made possible by machining the cylinder head, with new valves and valve seats , as well as improvements in engine cooling. 40. This melting point of 535 �C can cause problems on the hot spots of the engine like piston crowns, valve seats , and turbochargers.
