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Drums are more efficient than discs* - the reason why we mostly see discs these days is that discs are better at dissapating heat. This is not an issue in a handbrake setup.
*Except in the BMW handrakes, it seems.
Handbrakes and MOT's
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Drums are more efficient than discs* - the reason why we mostly see discs these days is that discs are better at dissapating heat. This is not an issue in a handbrake setup.
*Except in the BMW handrakes, it seems.
They're just a pain to adjust, VAG group handbrakes must be the easiest to work on ever!
It is true.
Drums are fine.
Fox, it shouldn't need constant adjustment. Is it one drum for the handbrake, or two? If its one, that's probably the answer.
If not I'd be horrified driving such a large car with it accepted as being substandard by the manufacturer.
Drums are fine.
Fox, it shouldn't need constant adjustment. Is it one drum for the handbrake, or two? If its one, that's probably the answer.
If not I'd be horrified driving such a large car with it accepted as being substandard by the manufacturer.
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All MOT testing station have rollers for testing brakes etc?
sorry mate yout wrong
jags where the first cars to have disc's fitted and they had to have warning sticker on the bumper to warn cars behide of sharp braking.
your right about heat but also think about, the size of pistons in calipers compared to wheel cylinders, think about the surface area of the compound. i you wanted a drum brake with the same force as a disc it would have to be about 4 times the size.
drum brakes are harder to work on, fade a lot faster and trap the dust
jags where the first cars to have disc's fitted and they had to have warning sticker on the bumper to warn cars behide of sharp braking.
your right about heat but also think about, the size of pistons in calipers compared to wheel cylinders, think about the surface area of the compound. i you wanted a drum brake with the same force as a disc it would have to be about 4 times the size.
drum brakes are harder to work on, fade a lot faster and trap the dust
Have you never seen an MOT being done before or something? How do you think they check brake efficiency, with their hands?
Edit: beaten badly
They also have some hand held device for testing cars which won't go on the rollers.
If you would like to read it first instead of trying to make yourself look smart i said "Im pretty sure" never said it was definitely did i???
Disc brakes are rubbish for parking brakes as a hot disc will contract as it cools causing the brake to release slightly, in extreme cases this can result in you coming back to find your car at the bottom of the hill instead of where you parked it. Conversely as a drum brake cools the drum contracts onto the shoes making the brake come on even harder.