BSE 2484 Lab # 6 Cylinder Heads & Valves STATION # 1(Intake & Exhaust Valves) Valves: •Valvesopen and close the intake and exhaust ports allowing the engine to function •Valvescreate a seal between the valve face and the valve seat •Valve springshold the valves closed against the valve seat •Valve face(the tapered edge of the valve head) and seat (pressed into the engine) creates the seal for compression •Valve guidesfit snugly around the valve stemto align the valve head in the port/seat •Valve marginis the un-tapered edge of the valve head. As the valve wares or is ground the margin is reduced the narrower the margin the more likely the valve is to burn. Identify the parts of the valve. Part A and Part B Blank # 1Part C and Part D Blank # 2Part E and Part F Blank # 3
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