Valve lash or clearance refers to the...

Question 1 / 2707066636eef28f7522a1c520472

Question 1 of 2707066636eef28f7522a1c520472

Valve lash or clearance refers to the __________.

Question 1 of 27070

Valve lash or clearance refers to the __________.

🔍 Key Concepts

• Valve train components: valve stem, rocker arm or cam follower, pushrod, camshaft • Thermal expansion of engine parts and why moving parts need clearance • Purpose of setting valve clearance/lash during engine maintenance

💭 Think About

• Which two parts must have a small gap so the valve can fully close as the engine heats up and parts expand? • Which options describe something that is actually a gap/clearance versus a force or a shape? • When mechanics "adjust valve lash" on a diesel, what are they adjusting with a feeler gauge under the rocker arm or adjusting screw?

✅ Before You Answer

• Verify which choice clearly describes a physical gap between two valve train parts that move against each other. • Eliminate any option that describes spring force or cam shape, since those are not clearances. • Think about what you physically measure with a feeler gauge when setting valve lash on an engine.

Question 1 of 27070

Valve lash or clearance refers to the __________.

clearance between the top of the valve stem and the valve lifting mechanism

compression force of the valve springs

clearance between the valve seat inserts and the valve head

fuel injection cam profile