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38

The decision to replace is largely based on the thickness. The repair manual should tell you the minimum thickness, below which you should replace the rotors when doing the repair. Use a pair of calipers and measure the rotor thickness, if you're below this number you need to replace the rotors. You may also wish to replace the rotors if you have ...


15

If the manual is saying small amounts of DOT3 can be used, what they are most likely saying is if you find yourself with low brake fluid and only DOT3 is available, it is better to use that than to not have brake fluid. Once you get back home though you need to get the recommended DOT4 back in the system by bleeding the system and filling with DOT4. As ...


14

For general driving, you can leave the car in drive. It doesn't damage the transmission leaving it in drive while stationary at the lights - although you don't want to be doing silly things like revving the engine while holding the brakes on. In an automatic car, you don't really use neutral. It is a step on the way to selecting Park, which means that the ...


13

There are three cases that cause brake rotors to need to be resurfaced/turned and/or replaced. Gouging of the rotor by the brake pad holding mechanism (the pad were rubbed completely away and the metal holding the pad start digging into the rotor) Warping of the rotor from extreme use (rotor gets too hot and warps upon cooling) The rotor itself wears down ...


13

DOT4 brake fluid has a higher boiling point than DOT3, making the fluid less likely to boil. Using cheaper, lower-grade fluid increases the chances of your brakes failing in situations where they build up lots of heat, e.g., driving down a mountain on a twisty road. More information: http://www.carbibles.com/brake_bible_pg2.html


13

tl,dr: The short answer is no, with caveats. The longer answer starts with "well, you can kill your car with anything if you try hard enough." Let's use specific examples of when you should use your transmission for engine braking: Waimea Canyon or Mount Washington. In either case, you are descending thousands of vertical feet at significant grades. If ...


13

Drum brakes are cheaper to manufacture than disc brakes, because there are fewer moving parts and because in the rear the parking brake (which often works by a drum-and-shoe mechanism even on four-wheel-disc-equipped cars) can share a drum with the "regular" brakes. All other things being equal, discs work better than drums, especially in wet conditions. ...


13

I would recommend you get slotted, but not drilled rotors. Regular rotors will work fine for typical track use. What is more important is the type of brake pad you purchase to go with your disks. The reason I suggest not getting drilled rotors is, they have a tendency to crack at the holes due to stress risers. They will not last as long as you'd like them ...


13

If it has been driving fine since then, all you have probably done is worn the brake pads down. Not fatal - but check when you pull the handbrake on that it is solidly holding the car stationary. If you notice vibration, then I'd worry about pads/disks being warped or damaged. You may find though that you need the handbrake cable to be tightened, as it may ...


12

There are a number of ways this can be done. It can range from a two person job, with on one the pedal and the other at the bleed nipple, to a one man job where the new fluid is forced through the system under external pressure. For DIY purposes the most common is the two man (person?) way. Person A is at the nipple, which has a hose attached and the other ...


12

There is no difference between the two. To replace it, you have to flush out the old brake fluid with new fluid. See this answer on how to bleed brake lines for more details.


11

Consider the possibility that the brakes make the noise at all speeds but that higher speeds mask it. The most likely cause is worn pads/shoes. You should check their remaining thickness against the manufacturer's recommended minimum. (Look in a repair manual if you have one, or search the Web.) Check the thickness of the brake rotors, too. If the car has ...


11

The braking surfaces of a rotor require precision machining. The tolerances are in the .002" range. You would never come close without a quality lathe. Each manufacturer also has specifications for minimum total thickness, side to side variance for vented rotors, the smoothness of the finish and run-out which is the difference between the highest and lowest ...


11

The main purpose of neutral on an automatic is for towing or pushing the car. Obviously you can't push it with the transmission in park, and if you tow it with the transmission in gear or in park and the drive wheels are in contact with the ground, you'll ruin your transmission or your tires or both. I'm sure there are some other uses too, but they're ...


11

If you lost all (or almost all) of your brake fluid, you have a leak. Check all of your calipers (assuming disk brakes all around) to see if there is a leak at the wheels. If none there, check the soft lines (rubber lines at the wheel) for leaks. If no leaks there, check around the master cylinder and anti-lock brake unit for leaks from the lines. If you do ...


11

Generally you don't replace calipers in pairs, only replace the damaged side. With that being said you may still not need to replace the caliper to solve your problem depending on the design. Their may be a kit that comes with new sleeves, o-rings, and grease. Replacing those will solve the problem, but again it depends on make, model, year.


10

Wow, I'm in the minority here. It is my firm belief that you should have your rotors turned with every brake pad/shoe replacement! If you do not do this everything will work perfectly fine, until you apply the brakes then if your brake rotors/drums were glazed, heavily scored or worn out of parallel to the new brake pad your will stopping distance WILL be ...


10

The only way to know if a rotor needs to be replaced is measuring it with a micrometer and comparing that to the manufacturers specifications, so, no, we can't tell you if it needed to be replaced. However, since this was your first brake job I seriously doubt they needed to be replaced. Common practices is to "turn" rotors when doing a brake job. The ...


9

It's not a concern really other than being annoying if in fact the brakes are new. It's not a difficult fix; just putting disk brake quite on the back of the pads should solve the problem. It should have been done when they did the brake job, so I would take it back to the dealer where you bought it and ask them to fix it. At my place it would be done at no ...


9

No, it does not need to be done every time. Don't believe the hype. If you have warping, then you should re-surface, provided you have not worn beyond the minimum dimensions for your discs.


9

You're going to have to bed the brakes in properly. Be very careful. http://www.zeckhausen.com/bedding_in_brakes.htm follow these instructions (at your own risk). A friend had a similar car as yours (IS300) and had the same problem. Once I bedded the rotors in, noise was minimized.


9

Yes your brake rotors are out of round. You can resurface them as long as they are not too thin. The rotor varies in thickness and as it turns when the brakes are applied causes the car to vibrate, and or pulse the brake petal. It's not an emergency unless it's shaking the car or steering wheel a lot when you brake. I would put a priority on getting it ...


9

Improper wheel nut torque, use a torque wrench, or an impact wrench with torque sticks to put on the wheels. Rapid cooling such as running through water with the brakes hot is also suppose to cause it. Cheap pads, they breakdown under heat and leave deposits on the rotor surface. Ball joints should not cause the rotors to warp. Example of Torque sticks ...


9

For the majority of brakes, they should be fine after a track day, but the real risks come from significantly overheating the brake fluid, or from stopping with hot brakes and having them cool while parked. This is why at track days it is always recommended that you stop after ten or so laps, if you have standard brake systems, to allow your brake fluid and ...


9

Contact area Blank rotors have a larger area in contact with the pads than slotted or drilled rotors. Therefore they provide better braking at the same temperature. Cooling To cool the rotor, manufacturers use a vented rotor, not a cross-drilled or slotted rotor. cross-drilling puts holes perpendicular to the flow of air - they have no cooling effect ...


9

There is no need for replacing the callipers together, as they will be heavy on your pocket, the reason why the pads and rotors are replaced together is since they work in tandem and working by rubbing against each other. The callipers on the other hand float over the entire assembly so there is no real point of changing them. You might need to change ...


8

It sounds like the caliper is sticking. If the piston is sticking then you would end up with one side worn down more then the other. Also, a piston should compress with a clamp, if it is that hard then that also points to it sticking. The smoking then could be from the pads being in constant contact with the rotor(if it is in that strong of contact). You ...


8

If this was a one time occurance the damage should be minimal. If the brake shoes were worn or damaged the lining material may have cracked from overheating. This is rare if they were in good shape. The damage done will depend on the type of parking brake brake along with the extent of wear before the incident. The older design of parking brake used the ...


8

In a word, accuracy! A lathe as used by a mechanic will have the precision required, and the instrumentation available, to ensure the rotors are turned evenly. You'd be surprised at how much vibration you can get at 70mph from the smallest inconsistencies in rotor height - and how much you lose in stopping power!


8

If your guide pins are stuck, the caliper won't be able to slide properly. With a sliding caliper, when you apply the brake, the piston pushes one pad against the disc (rotor), and simultaneously pushes back against the caliper (Newton's equal and opposite reactions), causing the caliper to slide along the guide pins, and pull the other pad against the ...



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