Question

Two technicians are discussing engine cleaning. Technician A says heads and engine blocks only need cleaned on the outside, since oil keeps the inside clean. Technician B says heads and blocks will need to be hot tanked, blasted or baked. Who is correct?a. Technicians A.b. Technicians B.c. Both Technicians A and B.d. Neither Technician A and B.

Answer 1

Technician B is correct; both the inside and outside of engine heads and blocks need thorough cleaning, which can be accomplished through processes like hot tanking, blasting, or baking to remove internal buildup.

Step-by-step explanation:

When discussing engine cleaning, both Technician A and B bring up valid points, but only Technician B is correct in the complete sense. Cleaning the outside of heads and engine blocks is certainly necessary, but it is a misconception that the oil keeps the inside clean enough to not require any further cleaning. Over time, engines can accumulate sludge and debris internally, even in the presence of oil.

Technician B suggests that heads and blocks will need to be hot tanked, blasted or baked, which is indeed the process for thoroughly cleaning engine components. These methods help remove the buildup of oil residue, carbon deposits, and other contaminants from the inside surfaces of the engine. Proper internal and external cleaning of engine components is crucial for the longevity and efficient operation of the engine.