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Car Forum / Volvo Cars / March 2005Glazed rotor 850
I bought my 1997 Volvo 850 a couple of years ago. The brakes began squealing within a couple of weeks. I took it in for a brake job to the tune of $450, which worked for a couple of days. Now another mechanic says the rotors are glazed, need to be turned, then if I put new pads on, all will be well. Recently, they don't just squeal when the brakes are applied, but often squeal (more softly) just driving down the road. Any ideas on this? Also, ALL FOUR of my front calipler pins came completely out. What's that about? They would not let me drive it home from the shop where I had it checked out, nothing was holding the brakes together but the clips. Anyone ever heard of something like that? TIA for your help. Laurel > I bought my 1997 Volvo 850 a couple of years ago. The brakes began > squealing within a couple of weeks. I took it in for a brake job to [quoted text clipped - 12 lines] > > Laurel 1st) the fact that the shop wants to turn the rotors should scare you the thickness from new to replacement 26mm New min thickness 23mm min thickness @ brake pad replacement is 23.8mm 2nd) as for all four caliper pins to come out is hard to believe as the caliper is held in by 2 caliper slides that are bolts for all 4 to to just come out & the fact that you were driving the car without the calipers hitting the wheels are slim & none If it was my car & I was not knowledge in automotive repair I would look for another repair facility you can choose a very qualified independent Volvo repair shop or your local Volvo dealer Glenn ASE Certified Automotive Technician Volvo Master Technician  Signature"*-344-*Never Forgotten" Is for the New York City Firemen who lost their lives on September 11,2001. The official count is 343, but there was also a volunteer who lost his life aiding in the initial rescue efforts. And I will never forget them as long as I live, nor should any American. >1st) the fact that the shop wants to turn the rotors should scare you >the thickness from new to replacement 26mm New min thickness 23mm min [quoted text clipped - 3 lines] >just come out & the fact that you were driving the car without the >calipers hitting the wheels are slim & none This makes absolutely no sense at all, and may as well be written in Sanskrit. Please, if you want to be helpful, write it in a way that people can understand. Remember that this is an international group, and is read by many people for whom English is not a first language. Punctuation is free; if you use it we stand a chance of knowing what you say. Otherwise why post at all? SignatureTSH For email, replace 'SpamOnlyToHere' with my initials > >1st) the fact that the shop wants to turn the rotors should scare you > >the thickness from new to replacement 26mm New min thickness 23mm min [quoted text clipped - 20 lines] > > For email, replace 'SpamOnlyToHere' with my initials I'm sorry, I disagree with you. Glenn is one of the most knowledgeable posters here, and I've learned alot from him. If you don't like what or how he posts, then you don't have to read his replies. SignatureMike F. Thornhill (near Toronto), Ont. Replace tt with t (twice!) and remove parentheses to email me directly. (But I check the newsgroup more often than this email address.) >> >the thickness from new to replacement 26mm New min thickness 23mm min >> >thickness @ brake pad replacement is 23.8mm [..] >> This makes absolutely no sense at all, and may as well be written in >> Sanskrit. >I'm sorry, I disagree with you. Glenn is one of the most knowledgeable >posters here, and I've learned alot from him. If you don't like what or >how he posts, then you don't have to read his replies. Ohgruffmutter. Yeah OK, bad day an'all. Sorry Glenn. I don't normally comment about other people's posting styles (and to be fair, it wasn't a comment about his knowledge), but the above piece of bowdlerisation was outstanding. I'm still struggling with what it means. SignatureTSH For email, replace 'SpamOnlyToHere' with my initials <snip> > This makes absolutely no sense at all, and may as well be written in > Sanskrit. [quoted text clipped - 6 lines] > if you use it we stand a chance of knowing what you say. Otherwise why > post at all? Bit of a twist in the old knickers, eh mate? > <snip> >> This makes absolutely no sense at all, and may as well be written in >> Sanskrit. >Bit of a twist in the old knickers, eh mate? Look, I didn't get this email address for nothing, you know. SignatureTSH For email, replace 'SpamOnlyToHere' with my initials > I bought my 1997 Volvo 850 a couple of years ago. The brakes began > squealing within a couple of weeks. I took it in for a brake job to [quoted text clipped - 3 lines] > the brakes are applied, but often squeal (more softly) just driving > down the road. Any ideas on this? Surely it's the pads that are glazed. I've never heard of glazed rotors. Whether they need to be turned is a matter of thickness and flatness. > Also, ALL FOUR of my front calipler pins came completely out. What's > that about? They would not let me drive it home from the shop where I > had it checked out, nothing was holding the brakes together but the > clips. Anyone ever heard of something like that? That sounds extremely odd. I'd wonder if something was botched during the brake job. How did the mechanic think it could have happened? > TIA for your help. > > Laurel > Surely it's the pads that are glazed. I've never heard of glazed rotors. FWIW, I was waiting in the company garage and saw they had just bought a "glaze breaker" that showed it being applied to a brake rotor. The device looked like a cup-type wire brush that fits in a drill but had some sort of abrasive balls on the wires. What that is all about... your guess is as good as mine. I'm not going to ask! Mike He thought they weren't tightened to spec. Although it was extremely odd to him, too, and I think that is the only explanation he could think of. Regardless of Glenn's punctuation, his recommendation of finding a competent tech came through loud and clear. (I hope its okay to respond to several posts in one reply.) rub your pre-moistened a.shole all over the rotors and reattach. Works for me! Bai AB > I bought my 1997 Volvo 850 a couple of years ago. The brakes began > squealing within a couple of weeks. I took it in for a brake job to [quoted text clipped - 12 lines] > > Laurel sorry, i forgot to mention that fanny juice WILL NOT work. > I bought my 1997 Volvo 850 a couple of years ago. The brakes began > squealing within a couple of weeks. I took it in for a brake job to [quoted text clipped - 12 lines] > > Laurel |
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