Final Answer:
The installation and removal of valve seat inserts involve specific procedures and tools to ensure proper functioning and longevity of the engine.Therefore the correct option is -B
Explanation:
Removable valve seat inserts are handled with specific tools and procedures. Tech A's suggestion of using a pry bar or puller to remove the inserts could risk damaging the seat or cylinder head. Conversely, Tech B's assertion aligns with proper practices.
Installing these inserts requires a specialized driver for precise placement. Furthermore, staking, a process involving deforming the metal around the insert, is crucial post-installation to secure the insert firmly in place.
Staking prevents the insert from moving or coming loose during engine operation, ensuring optimal performance and safety. This method maintains the integrity of the seat, cylinder head, and overall engine function.
Therefore the correct option is -B