Answer :
Final answer:
Plastigauge is used to measure bearing alignment in an OHC engine with removable bearing caps, providing an accurate clearance measurement using a comparison scale.
Explanation:
When working on an Overhead Cam (OHC) engine with removable bearing caps, the correct tool used to measure bearing alignment is called Plastigauge. Plastigauge is a specifically designed, pliable gauge that measures the clearance or space between fitted surfaces of the engine, such as between the bearings and the journal. To use Plastigauge, a piece of it is placed on the journal, the cap is then torqued down to specifications, and the cap is removed to compare the width of the flattened Plastigauge to a provided scale. This method is simple yet accurate for ensuring the correct bearing clearance.
