How to Determine if the Universal Joint is Faulty?
1 Answers
When the universal joint is faulty, you can hear a clicking noise when turning the steering wheel left or right while driving, and the steering wheel's free play increases. The noise is particularly noticeable when turning on bumpy or uneven roads, giving the sensation that the steering gear is about to detach. Below is relevant information: 1. The main forms of universal joint damage include: wear, cracks, and severe damage to the journal surface (such as metal peeling, obvious dents, etc.). If there is slight peeling on the journal surface, use an oilstone to polish the surface before continuing to use it. If there is severe damage, replace the universal joint. 2. Inspection and maintenance of the universal joint include the following: (1) Check the fit clearance between the universal joint bearing and the journal. Clamp the universal joint in a bench vise, place the needle bearing sleeve on the journal, and use a dial indicator against the highest point on the outer surface of the bearing housing. Push the needle bearing housing up and down by hand; the change in the dial indicator's reading represents the fit clearance between the bearing and the universal joint. This clearance should be less than 0.05mm. (2) The needle bearings in the universal joint must not show severe burning, rusting, or fatigue peeling. Otherwise, they should be replaced. When replacing, ensure the needles are of uniform length and diameter. (3) The retaining tabs (support plates) on the universal joint bearing must be completely secure, and the bolts should be intact. Thread damage should not exceed two threads. If requirements are not met, repair or replace as necessary.
