Bendix == bait and switch?

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Apr 26, 2008 | 07:08 PM

#41

popatim

PopaDopaDo

True Car Nut

Joined: Jan 2005

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From: NY

IIRC, the blueing is caused by heat.

May 14, 2008 | 01:35 PM

#42

sp4149

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Joined: Apr 2006

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From: San Diego

Quote:

Originally Posted by sp4149

I installed the Brembo rotors and Hawk HPS pads last night, installation went easily. The Brembo rotors were Made in Mexico and don't appear to be as heavy as the Napa rotors they replaced. Weight of the Brembo rotors is about 16 pounds each. Broke in the pads according to Hawk'* directions Stopping is smooth but I won't be pushing them for the first 100 miles or so. Hopefully they are gentle on rotors as advertised.

On the old rotors (after about a year on the 95 SE) the discs were a discolored blue over most of the braking surface (except at edges). On our Porsche 968 with Zimmerman rotors the braking surface is universally bright, no blueing). As you can see in the photos, three of the four surfaces had the blue discoloration, while one looked normal. Is this due to dragging pads, or is it nothing to worry about? The old pads were barely worn. I wonder if they contributed to the warping of the rotors.

Comments?

While the old Napa rotors that warped were definitely beefier than the Chinese cheapies, they also failed fast, less than 12 months and only about 8, ooo miles. The blue discoloration indicates overheating was the contibuting factor in the rotors warping.

I found the invoice for the brake pads, " Raybestos Quiet Stop". I'm thinking that the problems Andrew and I had were due to the brake pads, not the rotors. Hopefully the newly installed Hawk HPS pads will be gentle on the rotors as advertised. Until I found the invoice, I didn't remember how much I spent on the Quiet Stop pads, they were close to $70, about what I paid for the Hawk pads.

-sp4149

May 15, 2008 | 01:09 PM

#43

HurstGN

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From: Pittsburgh, PA

Just .02 in case it matters anymore....in the past once I needed new pads, rotors were just fine, never been cut. So we dressed the rotors and I installed Delco BruteStop pads. Not 10K miles later, problems set in. The pads and rotors were shot. When I went back to register a complaint, I told them what I did. the answer was, "It'* your fault". What?!?! They went on to explain that when BruteStop pads were used, you HAD to use BruteStop rotors or you'd end up where I was. I never heard of such a thing before, but apparently the pads required a special makeup of metal in the rotor or they would chew them to hell. I thought this guy was blowing smoke up my you know what. I told him they didn't inform me of any special requirements on the rotors when I bought the pads. The manager offered to replace the pads for free and I would have to buy the new rotors if I took the pads (had to be BruteStop rotors, remember). Well, since I needed both anyways, and it was cheaper to accept the pads and buy the rotors I did. Put them on the car and had no problems at all with chewing up rotors this time. So I guess there was some magic in those rotors, but I never looked into it further. All I know is the rotor did matter. I don't think BruteStops are sold anymore. I do know many others had the same problem I did.

So now when I get pads, I always ask if it matters what I have for rotors in case it matters somehow.