Lab_06__Cylinder_Heads___Valves_

Lab_06__Cylinder_Heads___Valves_ - BSE 2484 Lab 6 Cylinder...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
BSE 2484 Lab # 6 Cylinder Heads & Valves STATION # 1 (Intake & Exhaust Valves) Valves: Valves open and close the intake and exhaust ports allowing the engine to function Valves create a seal between the valve face and the valve seat Valve springs hold 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 guides fit snugly around the valve stem to align the valve head in the port/seat Valve margin is 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. P a r t A a n d P a r t B Blank # 1 P a r t C a n d P a r t D Blank # 2 P a r t E a n d P a r t F Blank # 3
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
BSE 2484 Lab # 6 Cylinder Heads & Valves STATION # 2 (Valve Timing) A four cycle engine produces power in four stages: Intake: Air and fuel are drawn into the cylinder Intake valve open, piston traveling down Compression: Air fuel mixture compressed Valves closed, piston traveling up Power: Air fuel mixture ignited and burned Valves closed, piston traveling down Exhaust: Spent air fuel mixture expelled from the cylinder Exhaust valve open, piston traveling up Observe the engine at this station! Is this engine’s valve timing correct? Yes (or) No Blank # 4 Use the attached diagrams to help determine if the engine is in time! Which parts must be properly aligned to synchronize the valves to the piston? Blank # 5 a. crankshaft and connecting rod b. crankshaft gear and camshaft gear c. valve lifters and valves d. none of the above
Background image of page 2
STATION # 2 STROKE # 1 STROKE # 2 STROKE # 3 STROKE # 4
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/31/2008 for the course BSE 2484 taught by Professor Dhvaughan during the Spring '08 term at Virginia Tech.

Page1 / 11

Lab_06__Cylinder_Heads___Valves_ - BSE 2484 Lab 6 Cylinder...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online