Brake Noise

SteelStrokeSteelStroke Wagonist
in Suspension, Braking & Wheels
Hear is the situation.

I replaced the rotors and pads. Now the Haynes manual I have states that it has brake shims but none were in evidence when I put the new pads in. I used semi-metallic pads as a replacement BTW.

When I drove it right after replacement, I got a grinding noise but it has diminished somewhat (only have 100 miles on new rotors/pads). But when I apply the brakes the grinding gets worse and when I turn I get a scraping noise as well. I was of the mind that it's all new and just needs to break in but it is still doing it.

I pulled off the wheels and checked but nothing seems to be rubbing (i.e the back plate) and no marks on the rotor.

Do I need to put shims in to prevent this noise?

Thanks

Comments

  • HaydzHaydz Moderator
    Only some brands of pads will operate properly without the shims (like the EBC shit).
  • SteelStrokeSteelStroke Wagonist
    New shims ordered.
  • SiWagonSiWagon Council Member
    Was there a tube of grease(e.g.molykote m77) w/the pads?This needs to be applied to the pad back & shims.A while back they use to spray a blue adhesive on the pad backs and shims.I don't think they use this anymore.

    The grinding noise could be if you are using a more aggressive brake pad(e.g. Ferrodo).
  • BIOHAZARDBIOHAZARD Wagonist
    ive seen and heard pads squeak and grind because the pads were of low quality all the time. meaning that if you buy the cheap pads this could happen.
    on the cheap pad front dont get the brand "auto xtra". these are the pads im talking about that do this all the time, on all makes and models on the first test drive.
  • SteelStrokeSteelStroke Wagonist
    SIWagon..No tube of grease..I got the pads from O'Reilly for 16 bucks..what kinda grease can I apply to the back/shims and is it available separate? What if I put an ounce or two of Stoli's vodka on em? May not stop the noise..but they will be happier LOL
  • SiWagonSiWagon Council Member
    SiWagon wrote:
    ... a tube of grease(e.g.molykote m77) ...
    Honda manual mentions molykote m77 so you can probably get it @ the Honda dealer.I'm sure your local auto parts house has a equivalent grease forless $$$.
  • BrakeExpertBrakeExpert New Wagonist
    Okay heres what you do. Only OEM pads are gonna use the good OEM shims. They can be used on any other aftermarket brake pad. Between the shim and the pad goes an anti-vibration compound. The greases are good sometimes, but ideally you want a real anti-vibration compound. Its ususally a thick liquid, that you apply and after 5 minutes, gets tacky like gum. Apply it, waht 5 minutes, and shove the shim on the pad. Try and get an even coating.

    I have used this method on all 32 different brake combinations on my car and have not had squeal in the last 6 years, including Porsche brakes with Pagid race pads.
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