What should caster be set at?
A safe starting point for caster is 2 to 3 degrees of positive caster. Positive caster is achieved by either adding shims to the rear bolt or removing shims from the front attachment point for the upper control arm.
How do you set the angle of castor?
Turn the steering wheel right until the wheel is turned 20 degrees right of straight ahead (turning 40 degrees total). Hold the gauge at a 90-degree angle and the reading will be your caster angle for the left wheel.
Do all vehicles with strut suspension have caster adjustments?
A vehicle equipped with struts and no provision for caster adjustments is out-of-spec on caster. Technician A says that a worn upper strut mount may be the cause. Technician B says the alignment and steering angles will be affected if the vehicles coil springs are weak or collapsed.
What happens with too much caster?
The main problem with too much caster, is that you reduce your contact patch in turns, so you are more likely to slide out in high speed turns or on slick surfaces, It also increases wear on the inside and outside edges of the tires.
How do you fix a caster angle?
One common way to adjust caster is to install an offset caster bush. This bush mounts the back or front of the lower wishbone to the car and has the centre bolt hole offset in a forward direction. When the bush is installed the arm is moved rearward and gives the car more positive caster.
Can caster be adjusted?
One way to adjust caster is with an adjustable arm. In the case of a MacPherson strut system this can be in the form of an adjustable tension rod that holds the lower arm forwards or backwards in the wheel arch. The screw can be adjusted to move the wheel forwards or backwards adjusting the caster angle.
Can caster angle be adjusted?
Does caster affect ride height?
Caster influences directional control of the steering but does not affect the tire wear and is not adjustable on this vehicle. Caster is affected by the vehicle height, therefore it is important to keep the body at its designed height. Overloading the vehicle or a weak or sagging rear spring will affect caster.
Can caster cause death wobble?
But the fact is that having too much or too little caster can cause problems for your Jeep’s steering. If your Jeep has too little caster angle, it can be a candidate for developing death wobble.
Does ride height affect caster?
Ride height can also affect caster. Spring sag or overloading a vehicle can alter ride height up to several inches, which can increase caster readings by up to a degree or more. That’s why ride height should always be measured prior to checking wheel alignment.
How does caster affect steering?
Caster. Increasing the amount of positive caster will increase steering effort and straight line tracking, as well as improve high speed stability and cornering effectiveness. Positive caster also increases tire lean when cornering (almost like having more negative camber) as the steering angle is increased.