Machine-translated by Google. Questions are authored in English.
Top

Discussion

Which component fails first if a driveshaft boot splits?

  • A.The differential
  • B.The hub nut, which is loosened by the vibration that the failing joint transmits along the shaft to the hub
  • C.The constant velocity joint
  • D.The wheel bearing, which is contaminated by the grease escaping from the joint as the shaft rotates at speed

Answer: C

Grease escapes and water and grit enter, and the joint wears rapidly until it clicks on lock and eventually fails. Replacing the boot promptly is far cheaper than replacing the joint. Boot condition is a standard inspection item. The order in which the effects act is what decides the outcome, so it is worth establishing first. Most errors here come from carrying across a result from a neighbouring case where it does not hold.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.