What causes rear drum brake imbalance?
A brake imbalance can be caused by several different problems in your braking system. These include uneven brake pad / shoe wear, worn discs / drums, a damaged piston or damage to the brake caliper.
What happens if you fail a brake imbalance Mot?
Failed mot on rear brake imbalance, difference was ove 40 percent (max allowed is 30 percent). Car had been sitting a while, figured sticking calliper or slider pin problem. Rubbed down the slider pins,regreased, replaced caliper with a new one, bled the brakes. Retest tonight, fail again, this time difference is 37 percent.
Can a handbrake be used on an imbalanced rear brake?
Hence the imbalance and MoT failure. Handbrake application yielded a similar result. So – off with the (old) drums, sanded them, sanded the (brand new) shoes, swapped the drums from one side to the other, re-adjusted the shoes and back down to the test station. Same result – almost exactly the same, actually (i.e. LHS strong, RHS weaker).
Is there a brake imbalance in a corolla JAP?
My wife’s Toyota Carib ( a 4WD 1.8 Corolla Jap Import) failed its WOF (like the MOT) the other day, due to brake imbalance. The deal is is that the rear RH brake is 36% down on the rear LH brake. I had a mechanic take the drums off and clean the brakes, but on re-testing the RH brake was still 33% down.
Can a brake imbalance cause a car to sail through?
Apparently the rules were changed recently with regards to brake imbalance, and if they hadn’t changed, she would have sailed through. When the brakes are applied and the braking force is measured on both rear wheels, the braking force comes on evenly (both wheel applies same braking force).
What causes an imbalance in the brake system?
A brake imbalance can be caused by several different problems in your braking system. These include uneven brake pad / shoe wear, worn discs / drums, a damaged piston or damage to the brake caliper.
Hence the imbalance and MoT failure. Handbrake application yielded a similar result. So – off with the (old) drums, sanded them, sanded the (brand new) shoes, swapped the drums from one side to the other, re-adjusted the shoes and back down to the test station. Same result – almost exactly the same, actually (i.e. LHS strong, RHS weaker).
Apparently the rules were changed recently with regards to brake imbalance, and if they hadn’t changed, she would have sailed through. When the brakes are applied and the braking force is measured on both rear wheels, the braking force comes on evenly (both wheel applies same braking force).
Why are the rear brakes imbalanced across an axle axle?
If the hand brake is fine with little or no imbalance, that suggests all is well with the drums and brake shoes and no contamination. The brake compensator limits the pressure that can go to both wheels when the chassis is unladen so unlikely to cause an imbalance. Likely culprit is a seized wheel cylinder, but thats just a logical guess:)
What does rear brakes imbalanced mean?
What does this mean? Brake imbalance is caused because one side of the braking pair (front or back axle) is not applying as much power as the other side.
Why is my car pulling to the left when I brake?
Brakes can also cause a car to pull to the left or right if one of the calipers gets stuck within the braking system. Other common brake issues can include a collapsed brake hose or dry slide pins. Having faulty brakes is always important for you address right away before you put yourself and other drivers in danger.
Do they check brake fluid on MOT?
Additional safety checks will be carried out during the MOT The test centre will investigate/check: underinflated tyres. contaminated brake fluid.
Why are my rear brakes Imbalanced on the LHS?
When each wheel is tested individually to assess its ultimate braking force, the LHS locked the rollers up at a rotating force of 110kg (roughly, not sure about units), while the RHS only managed 50 or even less. Hence the imbalance and MoT failure. Handbrake application yielded a similar result.
What causes MOT failure on rear brake imbalance?
Failed mot on rear brake imbalance, difference was ove 40 percent (max allowed is 30 percent). Car had been sitting a while, figured sticking calliper or slider pin problem.
What causes a car to pull to one side when braking?
Car Pulling to One Side When Braking This could be caused by a brake hose gone bad or a caliper problem. One brake caliper may be applying more or all the pressure during braking, resulting in unbalanced stopping. 7.