What is the adjustment method for kingpin inclination angle?
2 Answers
The adjustment method for kingpin inclination angle is as follows: 1. Use a four-wheel alignment machine to check the data and adjust according to the vehicle's standards, using the alignment machine to position the wheels and detect wheel data; 2. Adjust the left kingpin inclination angle bolt. If the displayed data is red, it needs to be adjusted directly to the green standard data; 3. Adjust the right rear wheel camber bolt. If the data shows red, it needs to be adjusted directly to the green standard value. The kingpin inclination angle requires a four-wheel alignment for adjustment because it can check whether the data is normal. If the data is not within a reasonable range, it needs to be adjusted in time.
I've recently been researching caster angle adjustment on my own because it affects steering stability and return-to-center feel. You have to start with the suspension system and use a wheel alignment machine to measure the angle—either find a professional shop or rent the equipment yourself to check. The steps involve driving the car onto the alignment platform, taking readings with the machine, and then adjusting the position of the suspension strut or steering knuckle, usually by adding shims or turning an eccentric bolt. Before making adjustments, you need to confirm the specifications in the manual—too small an angle weakens steering return, while too large an angle makes steering heavier. DIY carries high risks, potentially leading to uneven tire wear or unsafe driving, so I recommend leaving it to a technician if you lack experience. It's best to combine this with routine maintenance checks for suspension wear to ensure driving safety.
