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).
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.
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).
When do brakes come on evenly on both rear wheels?
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 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.
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).
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 rear wheel to lock up when braking?
Problem: One or both rear wheels lockup during braking or the rear end of the car squats when braking. Cause: Rear Wheel lockup or squatting has many causes. Here is the list of possible causes: Service and parking brake adjustment. Rear brake hardware. Shoe lands or bosses. GM clip in wheel cylinders. Brake drum condition.