New Brake Pad thickness? | Page 2 | Ford Escort Owners Association (FEOA)

New Brake Pad thickness?

Discussion in 'Wheels/Tires/Brakes' started by zzyzzx, Dec 8, 2017.

  1. Bas1c973sco

    Bas1c973sco FEOA Member

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    Pressure may stay the same but because of the pads being thinner there is more displacement in the caliper for brake fluid making your pedal activate the brakes at a lower height and somewhat squishier, also if te back plate is a better conductor then you have more heat going to the piston and then brake fluid, which then I guess under heavy braking we could say the fluid get so hot that the pedal gets spongy because of it boiling. The difference between DOT 3 and DOT 4. One takes more heat before giving up.

    So if you had 1mm brakes you wouldn’t want to take mountain pass roads or at least I wouldn’t risk it.

    I didn’t really word what I was trying to convey properly, because of how thin they are, it would lead to having less pressure being able to be applied.


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  2. zzyzzx

    zzyzzx FEOA Member

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    The Factory Service manual specifies minimum thickness for the rotors and pads. Presumably that is because if the rotor is at its minimum thickness, you don't want the brake pads below minimum because of the travel limitations of the caliper piston. In other words, at some point, one is potentially tempting fate, but brakes and rotors for these cars are cheap and easy to replace.
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  3. Joey_Twowagons

    Joey_Twowagons FEOA Member

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    I would think the main reason for changing the pads a bit before they are totally used up is to make sure that they are not run to the point of metal on metal.

    By the way, I was checking Rockauto wholesaler closeouts the other day and they have genuine Motorcraft brake shoes marked down from $57 to $7. If I lived in the US I would order some, plus I have a NOS spare set already.
    Last edited: Dec 26, 2017
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  4. zzyzzx

    zzyzzx FEOA Member

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    I thought about that too, but that still falls under the Do you feel lucky? possibilities.
  5. Bas1c973sco

    Bas1c973sco FEOA Member

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    I’m sure none of us are Clint Eastwood. Lol
    For me once you get to 3-4mm that’s when it’s close to replacement probably another 5-10k mi (considering it’s not being used as a fleet vehicle) and you’re good for replacement. If the rotors are still good going metal to metal might also prevent you from being able to shave the rotors and have the ability to reuse them, because of the scoring.


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  6. zzyzzx

    zzyzzx FEOA Member

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    From the time I started to the time I got that dreaded bottom bushing out, cleaned up, and lubed, it took me 2 hours.

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