Technician A states that a pilot bearing can be removed using chassis grease and a round rod. Technician B claims that all pilot bearings may need a thin coating of grease after installation. Which technician is correct?

In this scenario, both technicians present valid points regarding pilot bearings.

Technician A correctly describes a method for removing a pilot bearing. Using chassis grease in conjunction with a round rod can create hydraulic pressure that helps to extract the bearing from its housing. This technique is effective because when grease is packed into the bearing cavity and pressure is applied through the round rod, it can push the bearing out without causing damage to surrounding components.

Technician B's claim about applying a thin coating of grease after installation is also accurate. This practice helps to reduce friction and wear between the bearing and the input shaft, which can enhance durability and improve the performance of the transmission. A thin layer of grease ensures that the bearing is lubricated properly without attracting excessive dust and debris.

Therefore, both technicians are correct because their statements address different aspects of dealing with pilot bearings—removal and lubrication post-installation.