Question

A says improper balance shaft timing causes severe engine vibrations.

B says the balance shafts are timed in relation to the cam

-A
-B
-Both
-Neither

Answer 1

The question deals with the effects of balance shaft timing on engine vibrations, where both A's and B's statements are correct as improper timing can lead to severe vibrations and balance shafts must be timed with the camshaft.

Step-by-step explanation:

The question concerns the relationship between balance shaft timing and engine performance. A correctly states that improper timing of the balance shafts can result in severe engine vibrations. Balance shafts are designed to offset vibrations created by the engine during its operation, particularly in inline-4 and V6 engines. B asserts that these shafts should be timed in relation to the camshaft, which is also true. Precise timing is essential to ensure that the counterbalance effect of the shafts occurs at the right moment to cancel out the engine vibrations. Therefore, the correct answer is Both A and B.