| After testing your medium-speed engine's exhaust valve springs you find one with a spring constant that is lower than specified by design and a length that is reduced in length from that specified by design. What is the recommended course of action? |
| A) Anneal spring to restore the spring constant to the original value. |
| B) Restore the spring to its original length by stretching. |
| C) Remove shims to restore spring to its original length. |
| D) Replace spring and check the valves cam and follower for marring caused by bounce. |
