Question

Tech A says that when inspecting piston ring grooves for wear, you should place a new rings in the groove and then insert a feeler gauge between the ring and the groove.

tech B says that you should simply insert a feeler gauge in the ring groove and then compare the measurement to specification

-A
-B
-Both
-Neither

Answer 1

The correct procedure for inspecting piston ring grooves involves placing a new piston ring into the groove before using a feeler gauge to measure for wear. Tech A's method is accurate and allows for a comparison against manufacturer's specifications.

Step-by-step explanation:

The question pertains to automotive engineering, specifically the procedure for inspecting piston ring grooves. Tech A's approach is the correct method. To inspect for wear, a new piston ring should be placed in the groove first to ensure that it is correctly seated within the groove. Then, a feeler gauge is inserted between the new ring and the groove to measure clearance.

The measurement can be compared to the manufacturer's specifications to determine if the gap is within tolerance. Tech B's suggestion to directly measure the groove with a feeler gauge without a ring could lead to inaccurate results, as it does not account for the shape and fit of the ring itself.