Skip to main content

Featured

Tyre Ratings & Best Tyres for Road Use — With Real Vehicle Examples

1. Tyre Ratings: What to Look For These ratings appear on the tyre sidewall and help you judge quality, safety, and performance. Treadwear Rating This tells you how long a tyre is likely to last. The higher the number, the longer it should last. A treadwear of 400 means the tyre will last about 4 times longer than a baseline test tyre. Traction Rating This shows how well the tyre grips on wet roads. The grades are: AA (excellent), A (good), B (moderate), and C (poor). Temperature Rating This tells you how well the tyre resists heat. High heat resistance means the tyre won’t overheat and burst at high speeds. Grades: A (best), B, and C. Load Index This number shows how much weight one tyre can safely carry. You must match this to your vehicle's weight class. Speed Rating This tells you the maximum speed the tyre can handle safely. For example, H = 210 km/h, T = 190 km/h, etc. 2. Best Tyres for Personal Vehicles (By Model) a. Toyota Corolla / Honda Civic Recommended Tyre: Michelin Pr...
Post a Comment
Read more

Bleeding Brakes and Testing

This is necessary whenever air has entered the system. The main procedures in the operation are:

  • ensure that the reservoir is full
  • start from the furthest wheel from the master cylinder
  • attach one end of a transparent rubber tube to bleeder valve and immerse other end fluid contained in a jar
  • open bleeder valve and slowly pump pedal until air bubbles cease to appear, close bleeder valve as pedal valve as pedal is being depressed.
  • Repeat at all wheel cylinders
  • top up reservoir
Note: Bleeding should only be necessary when:

  • the level in the master cylinder is allowed to fall too low
  • the fluid has been drained off
  • the system has been opened for repair
Brake testing 
In practice, brake efficiencies may be determined by:
  • Measuring the stopping distance for a given speed
  • using a decelerometer such as the tapley of feredo meters.
  • using a brake testing machine.





Email Post

Comments

Post a Comment

Popular Posts