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How do I get the front rotors off my 2005 Chevy uplander? I have the caliper and mounting bracket off. Are the rotors siezed on by rust and I tap them off or do I have to take the 34MM? nut off?
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did you clean the surface where the rotor sit. normaly a vibration while braking is rotor are out of line (pad touch and don't )wave rotor.But clean surface where the rotor sit and make sure the two pins of caliper slide freely. and very important tight wheels nuts to spec torque.
forst you will remove the two bolts that hold the caliper to the caliper bracket. With the caliper removed you can then use an 18mm socket and a breaker bar to remove the two bolts that hold the caliper bracket to the axle. These two bolts have threadlock on them and can be a real bear to remove. I have broken more than a couple wrenches and sockets removing these. Once the caliper bracket is removed you will then be able to remove the rotor. A hammer may be needed to break it free from the hub.
Pay particular attention the the caliper bracket and the area where the pad mounts to it. if you look under the abutment clips you will usually find a lot of rust which will cause the pads to bind in the bracket. Cleaning the rust out of this area and apply a little high temp anti sieze compound and your new pads will last a lot longer.
The brake rotors on a Toyota Matrix
are an extremely important aspect of the brake system. Over time, the
rotors, which are the round disc that the caliper and brake pads clamp
when the brakes are applied, can get scored, warped or simply wear too
thin from use. Rotors should be regularly inspected for wear and
replaced if necessary to ensure that your Matrix's brakes function
properly and safely. Replacing rotors is a simple job that can be done in a few hours
Loosen the lug nuts that fasten the wheels on. Raise the Matrix with a jack and support it securely with jack stands. Remove the wheels.
2
Clean the brake caliper, rotor and nearby areas with brake
cleaner and a clean rag. Make sure there is no dirt, oil or contaminants
on the brake components.
3
Remove the bolts that hold the caliper to the caliper
mounting bracket. There will be two bolts that can be removed with a
socket and ratchet or an open-ended wrench.
4
Slide the caliper off of the rotor. Support the caliper with a
piece of wire or string so that the weight of it is not on the brake
line, which could be damaged from the weight of the caliper.
5
Remove the caliper mounting bracket by removing the two bolts with a ratchet or an open-ended wrench. Set the bracket aside.
6
Pull the rotor straight off of the hub. On the Matrix,
the rotors are not bolted on with anything, once the wheel and the
caliper are out of the way. However, the rotor may be frozen onto the
hub from years of dirt and rust. Use a rubber mallet to tap the rotor
off.
once the caliper and bracket are removed, the rotors should just come off. These are hat style rotors and just slip over the hub. They do have a tendency to rust on, sometimes hitting them with a hammer between the studs will break them loose. some rotors have threaded holes between teh wheel studs that you can screw a bolt into to break them free.
1. remove 2 bolts holding caliper on (either 12 or 14 mm) 2 remove 2 bolts holding caliper bracket (which holds the brake pads) (17mm) 3. remove the 2 phillips head bolt holding the rotor on 4 remove rotor, if rusted may need to tap it off 5 reverse procedure, when reinstalling caliper, may need to press piston back into caliper to get it to fit over new rotor
depending if you have the tools to do the job and pb blaster lock tite and white and dark grease for a beginer it has a rating of 7-8. if you work on cars and know what your doing, then its easy.. first thing is to remove the calapers then remove the calaper mounting bracket spray around the studs and bolts with pb blaster also around the hub and tap around the whole area around rotor dont hit the studs (with hammer) to break the rust buildup this should break rotor free then you may want to clean the rust off so that the rotors seat properly remove and clean new rotors with brake cleaner to get off the film off them (shipping rust retardent) and wipe. spray bolt holes to clear any rust left while removing old rotor and braket and dry. place a small ring of lock tite on bolts holding caliper brackets and let stand till harden or almost hard. replace new rotors install bracket/s and bolts (torq to ? 80foot lb) while replacing rotors replace brake pads, replacing just rotors will over heat new rotors in spots and warp rotors!!! make sure you pull the pins that retain the calipers to the bracket and add light coat of white grease to pins so calipers slides easy and evenly
Remove 2/3of the brake fluid from the master cylinder.
Raise and support the vehicle.
Remove the tire and wheel assembly.
Remove the front wheel hub extension (dual wheel vehicles only).
Insert a drift or large screwdriver through the brake caliper into one of the brake rotor vanes in order to prevent the rotor from turning.
Mark the relationship of the front wheel hub extension to the hub
Remove the front wheel hub extension bolts
Remove the front wheel hub extension from the vehicle. It may be necessary to tap around the perimeter of the hub extension with a rubber mallet to loosen it from the hub
Mark the relationship of the rotor to the hub.
Remove the caliper and mounting bracket as an assembly.
Hang the caliper and the mounting bracket assembly from the suspension using mechanics wire.
Remove the rotor.
If the rotor is difficult to remove due to corrosion in the hub area use the following procedure to remove the rotor (25 series only).
Clean all the surface areas and the threaded holes of contamination
Generously apply penetrating oil or the equivalent to the hub/rotor area
Insert (2) M10 x 1.5 bolts (jack screws) into the threaded holes of the rotor
Tighten both bolts evenly to force the rotor from the hub.
To install:
Clean all rust and contaminants from the both side of the rotor and the hub flange.
NOTE
If the rotor was removed using the jack screw method you must ensure that the hub flange is free of nicks or marks caused by this procedure. Remove all raised nicks or marks before installing the rotor.
Install the rotor.
Install the caliper and the mounting bracket as an assembly.
Its not uncommon for rust to accumulate on rotors. Normally rotors are good for 50,000 miles or more. If they're not warped or severly grooved, the rust won't hurts them.
Just completed doing my rotor place a car jack stand or stack 2 blocks on each side of your A frame. Let jack down and place some blocks behind front of and rear of tires left on the ground. To remove your caliper mount look on reverse side of caliper mount for 2 large hex bolts. Lightly spray around them with some liquid wrench (try not to get spray everywhere). Remove bolts with a wrench and probably a hammer or a ratchet and a hammer. Tap lightly on wrench using short strokes. If this doesn't loosen the bolts use some heat (heated wrench technique) small propane kit to heat caliper mount not too hot just enough to heat it up to just above too hot to touch then reapply wrench tapping lightly. You need a C-Clamp to push the caliper in. After caliper is in remove c-clamp from caliper. If the caliper wont go in you have to replace it. Remove rotor cap with a flat head screw driver and hammer tapping around the edges lightly. Remove the pin out of the bolt behind the rotor cap. Remove nut then remove rotor. Some vehicles will not have a nut and pin system, just a shaft to hold the rotor in place. If the rotor is rusted on tap firmly on inside (back side) of
rotor to break it loose from the rust . Spray rust with liquid wrench let sit for 2 minutes then wipe dry. Use a clean cloth or rag to handle new rotor. Slide new rotor on the shaft and replace nut the pin (if no nut and pin continue to next step. Place caliper over rotor and screw in hex bolts on back side of caliper using a wrench or ratchet tighten 1/2 turn of being tight. Re -attach caliper mount onto caliper. Tighten 1/4 turn past tight. Lift truck with jack replace tire and remove jack stands and or blocks from under A frame let truck down and remove blocks
when replaceing front rotors, how tight should the nut be to hold it on?
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