Question

scenario 3 - valve clearance
you need to measure the gap between the rocker arm and the valve stem on an overhead cam engine.
tool used:
reason:

Explanation:

A feeler gauge is commonly used to measure small gaps like the one between the rocker arm and valve - stem in an overhead cam engine. It consists of a set of thin metal blades of known thicknesses. By inserting the appropriate blade into the gap, the clearance can be accurately determined.

Answer:

Tool Used: Feeler Gauge
Reason: Feeler gauges are designed to measure small clearances precisely.