What is NOT true about engine belts in hot weather conditions?

Engine belts are subject to different stresses and conditions that can affect their performance, especially in hot weather. While the correct statement indicates that cracking does not inherently present a serious safety threat, it is important to understand the context of each of the other statements.

In hot weather, the heat can cause rubber belts to weaken or become brittle, which may lead to cracking. However, while cracking may indicate wear, it does not automatically equate to an immediate safety issue unless the belt completely fails while in use. The situation can be managed with regular maintenance checks.

Furthermore, belts can indeed become loose in hot weather due to thermal expansion or changes in engine operation. Thus, ensuring that these components are properly tensioned is essential. Routine checks are critical for maintaining the integrity of engine belts, as these inspections help catch potential issues before they lead to more significant problems.

In summary, while cracking is a possibility in hot conditions and could lead to concerns if left unaddressed, it does not directly imply a serious safety threat on its own. Regular inspections are vital to ensure the overall effectiveness and reliability of engine belts.