Forum Thread

insalled new rotor, pad and caliper now wheel is too tight

457 409 June 11, 2017 at 07:04 PM
Installed new rear pad, rotor and caliper on my altima and the wheel is too tight. there is no space between the pads and rotor at all. took car for spin the wheel is getting hot.
Note: did the same on the rear passenger side no, such issue.
It is a remanufactured caliper from autozone, rotor/pad from advanced auto (a slickdeal find)

Any clues?

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#2
The wheel is too tight? That doesn't make sense. Does the caliper move freely when off the vehicle? Did you lubricate it before installing? Did you make sure that the pads are seated fully in the caliper without any foreign object in the way?
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#3
Quote from Jabbit
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The wheel is too tight? That doesn't make sense. Does the caliper move freely when off the vehicle? Did you lubricate it before installing? Did you make sure that the pads are seated fully in the caliper without any foreign object in the way?
I did lubricate the caliper. Pads are seated fully and caliper bracket was closed after that. caliper comes with piston all the way inside by default, with pads and rotor there is no gap at all, there should be some room for the piston to move. i don't understand.
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#4
I went through 3 rotors on my truck before I got one that didn't warp within 2 weeks

Go get another
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#5
Quote from stufine
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I went through 3 rotors on my truck before I got one that didn't warp within 2 weeks

Go get another
Hmmm. Could that be the case here?. If it was warped then when rotating the wheel at some point it will be not tight Right? In this case it was tight 360 degree.
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#6
Quote from GlobWarmNoGood
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Hmmm. Could that be the case here?. If it was warped then when rotating the wheel at some point it will be not tight Right? In this case it was tight 360 degree.
Just means I don't trust either of those places
You could switch pads and then rotors with other side to see whats up.
are there removable shims on the pads?
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#7
Quote from stufine
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Just means I don't trust either of those places
You could switch pads and then rotors with other side to see whats up.
are there removable shims on the pads?
I see what you are saying, appreciate the insights.
I will try to switch the pads and see. The other side I have been using for a month so may be worn a bit.
Thus is what I have m.advanceautoparts.com/p/carquest-wearever-gold-ceramic-brake-pads-rear-4-pad-set-gnad905/15520594-P?brandName=Carquest+Wearever+Gold
It is not removable from what I saw.
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#8
I will hate myself if I have to remove the caliper itself again. Loosening the bracket bolt was PITA Smilie
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#9
Quote from GlobWarmNoGood
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I will hate myself if I have to remove the caliper itself again. Loosening the bracket bolt was PITA Smilie
I would take it apart and reassemble. Either something isn't assembled correctly or you have a defective part.
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#10
Quote from LiquidRetro
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I would take it apart and reassemble. Either something isn't assembled correctly or you have a defective part.
bent bolt or not sliding along the bolt, keeping it pushed to one side
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#11
If you were able to reassemble it, then there should be enough room for free movement. That said, everything must be lubed properly and I hope you replaced the "shims" (really, they are slides for the pads to ensure they move properly).

When you're driving, the pads are separated from the rotor by a tiny fraction of an inch - the caliper has no mechanism to "pull back" the pads after it applies pressure to them to stop the car, so they are pretty much going to look like they are contacting the rotor even when the brake isn't being applies.

That said I have had one situation like yours - I heard the characteristic brake scrape, checked the wheels, noticed that the fronts were down, so I replaced the rotors and pads. I thought it was kinda fishy that the new pads didn't come with shims, but I "resurfaced" the old ones a bit with a wire wheel before installing the new pads. A few days later I noticed my MPG dropped by like 10% and also that one of the wheels was very hot. In the end I wound up buying a new set of pads with new shims - that fixed the issue which was one of the pads getting cocked in the shims and basically grinding against the rotor all the time. (lesson... always replace shims)

Can you manually rotate the wheels when the car is put on a jack and in (N)? IF so I don't think you have a caliper binding or cocked pad issue

Lastly, I used to have lots of issues with worn rotors - ever since I started bedding in new equipment [tirerack.com], that problem has stopped.
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Last edited by Dr. J June 12, 2017 at 12:14 PM.
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#12
Rotors can wear out???
I am inclined to blame the rebuilt caliper here. I am also puzzled as to how you are able to install everything if it's really that tight. Did you have to (usually twist) the new caliper to get it all the way back into it's depressed position.

Question for clarification: You replaced both calipers or just one side?
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#13
Quote from stufine
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bent bolt or not sliding along the bolt, keeping it pushed to one side
OK. could be. Note: I started having the tightness right after installing the pads and closing the caliper and tightening the sliding pin bolt. Did not apply the break even once, so the piston was all the way in.
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#14
Quote from Dr. J
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If you were able to reassemble it, then there should be enough room for free movement. That said, everything must be lubed properly and I hope you replaced the "shims" (really, they are slides for the pads to ensure they move properly).

When you're driving, the pads are separated from the rotor by a tiny fraction of an inch - the caliper has no mechanism to "pull back" the pads after it applies pressure to them to stop the car, so they are pretty much going to look like they are contacting the rotor even when the brake isn't being applies.

That said I have had one situation like yours - I heard the characteristic brake scrape, checked the wheels, noticed that the fronts were down, so I replaced the rotors and pads. I thought it was kinda fishy that the new pads didn't come with shims, but I "resurfaced" the old ones a bit with a wire wheel before installing the new pads. A few days later I noticed my MPG dropped by like 10% and also that one of the wheels was very hot. In the end I wound up buying a new set of pads with new shims - that fixed the issue which was one of the pads getting cocked in the shims and basically grinding against the rotor all the time. (lesson... always replace shims)

Can you manually rotate the wheels when the car is put on a jack and in (N)? IF so I don't think you have a caliper binding or cocked pad issue

Lastly, I used to have lots of issues with worn rotors - ever since I started bedding in new equipment [tirerack.com], that problem has stopped.
The pads i have installed and replaced have shims attached to it, not replaceable, I assume shims are right on the back side of the pad material, The U shaped thin metal hardware where pad slides back and forth - i replaced that, put an new one and added antifeeze on it.

i could not turn the wheels while jacked up, right after install. it was so tight.

Mine was a new rotor, pad and caliper.
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Last edited by GlobWarmNoGood June 12, 2017 at 09:13 PM.
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#15
Quote from zzyzzx
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Rotors can wear out???
I am inclined to blame the rebuilt caliper here. I am also puzzled as to how you are able to install everything if it's really that tight. Did you have to (usually twist) the new caliper to get it all the way back into it's depressed position.

Question for clarification: You replaced both calipers or just one side?
could the rebuilt caliper have little less spaces inside to hold the pads? wondering on the same lines.
i was able to close the caliper without much of a problem. (i had iinitially put the pad with wear indicator on outside and outside one inside. But then i could not close caliper. realized the issue and reversed the pads and was able to close the caliper). then tightened the 14mm bolt.

rear passenger side pads, rotor and caliper was replaced a month ago, no issues. this time did the same on rear driver side. i purchased 2 sets of pads, rotors and rebuilt calipers.
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Last edited by GlobWarmNoGood June 12, 2017 at 09:12 PM.
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