Answer :
Final answer:
Blocker ring clearance is typically measured using a Feeler gauge, which is the correct tool for assessing the clearance between the blocker ring and the gear cone in automotive transmissions.
Explanation:
The blocker ring clearance can be checked using a Feeler gauge. A feeler gauge is a tool used to measure gap widths or clearance between two parts. When dealing with automotive transmissions, a mechanic would use a feeler gauge to assess the clearance between the blocker ring and the gear cone. This is a crucial measure to ensure the transmission shifts smoothly without grinding. Other options like a dial bore gauge and a dial indicator have their uses in other applications but are not the best choice for checking blocker ring clearance. Plastigauge is used primarily for measuring bearing clearances. Therefore, the correct answer here is B. Feeler gauge.
