Yes, they are definitely too tight. The pads should slide in w/o any force. If you have to force them in, the pads will not "retract" when you get off the brake. As a result, you will get excessive pad and rotor wear and excessive heat.
Get under the car with the bolt head facing you, its the normal "lefty loosey, righty tighty." If you are using a ratchet wrench set it to "lefty loosey" and go to town on it. When you are looking at the head of the bolt it loosens by turning anti-clockwise.
Use special grease for ceramic brake pad assemblies
But they don't dissipate heat as well, and that high heat can degrade the grease in caliper and pad slides. So it's critical that you use synthetic high-temp brake pad grease to lubricate the caliper pins, pad abutments and pad slide hardware.A thin layer of brake lubricant is that is needed. Apply lubricant on caliper pins, clips, edges of the brake pad mounting tabs, and back side of the brake pads if needed. *Do not apply lube on the friction side of the brake pads.
No. It really doesn't matter. Generally you want to get the pad so the wear indicator will make contact WITH the turn of the rotor instead of against it, but if you don't its not a big deal.
The most common reason new brake pads won't fit is corrosion on the caliper carrier bracket. Other causes include: Excessive paint on the brake pad arms. Wrong pads.
If it is a reputable shop, calmly ask them to look at the brakes that were installed by them , and if they had a problem with that batch, they may try a swap (left to right) if your car has the kind that can do that. (some do not). Bring it back to where the brakes were serviced, and let them know your experience.
Yes, although you might not be able to see it with the naked eye. When pressure is released, the brake pads “pull back” slightly so that they do not actually touch the rotors unless pressure is applied.
Tends to happen with new pads. Possible solutions will be to just ride them out, or file them down a mm or so. Depends really, If it's a different compound to what you used before then it'll take a bit longer. Sand down your disc and do a few runs, that should bed them in.
Another reason why your car may be grinding is that there is debris on your brake pad or rotor. If a mechanic sees debris on the rotor when they are replacing the pads, they should clean it or repair it. But often, dirt or dust sneaks on between the pad and rotor when the new pad is being installed.
There is no space between the pad and rotor . . . the pad rides up against the rotor at all times, the caliper just increases the pressure when the piston extends. agree w/John. It's pretty much 0.0" clearance after pads are installed and brake pedal depressed
Rubbing disc brakes can make irritating noises, slow you down and cause premature wear to both your pads and rotor. The most common reason for disc rub is bad caliper alignment, something that's both quick and easy to sort out.
New rotors are coated with a rust inhibitor and as you use the brakes for the first few times, this inhibitor burns off and can cause the brakes to 'smoke'. The smell may also be part of this.
Squeaky, screeching or grinding brakes. It is not just embarrassing, it could be dangerous. It could mean your car's brakes need work and worse, your safety could be at risk. The problem is, even though, your brakes are making some sounds, it may still stop ok.
Brake grinding is always a serious problem, and should be dealt with immediately. When your brakes are making a loud grinding sound when you press on the pedal, this is almost always caused by contact of the rotor disc with part of the caliper. This is usually because of extreme wear to the brake pads or rotors.
I believe 3mm of pads should do several times 1k miles. If inner's and outer's are equally worn - then much more, say at least 10k miles. It depends of course how intensively you use them.
In vehicles with a conventional proportioning valve, the front brakes typically wear two to three times faster than the pads or shoes in the rear. Consequently, a vehicle may go through one or two sets of front pads before all four brakes need to be relined.
Most pads start their life with about 12 mm of friction material, and most mechanics suggest replacing them when they get to 3 or 4 mm. You should replace your car's brake pads before the backing plate begins gouging out the brake rotors — a complication that can make the job even more expensive.
One of the first symptoms commonly associated with bad brake rotors is noise. If the rotors are warped (meaning not perfectly flat) or severely worn, they may produce squealing or squeaking sounds. Usually, warped rotors will produce a squeak, while severely worn rotors will produce a scraping sound.
For example, if the caliper bolts to the rear of the rotor, then the wear indicator should be on the bottom inner. If the caliper bolts to the front of the rotor, then the wear indicator should be on the top inner. By front of the rotor, I mean calipers mounted on the front side of the vehicle.
As a general rule of thumb, there's about a 40,000 mile range in play. Average brake pad life is somewhere around 25,000 to 65,000 miles. However, many people have heard of brake pads lasting more than 70,000 miles, even beyond the 80,000 mile threshold. You may have even experienced super-long brake pad wear yourself.
Driver Error: The single most common cause of abnormally fast brake wear is driver error. This is most usually seen with “two-footed” drivers who use their right foot to work the gas and their left to work the brake. These drivers tend to leave their left foot resting ever so slightly on the brake pedal.
A common cause of uneven brake pad wear is DTV (Disc Thickness Variation). Often, components within the caliper, such as the guide pins, can seize and cause the brake pad to drag along the rotor whilst the brakes aren't applied which in turn leads to uneven brake pad wear.
