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  1. #101
    I can't car too good. SaukRapids's Avatar
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    Default Re: 2005 CompG - Dear Mr. Stiegemeier,

    Rainy roadside, "lets move this now" situation. No one got hurt. She's a little shook up, more about the car than making an emergency stop. I got it back in less than half hour. Tale ensues.



    Well now, that doesn't look right.



    How I got it home at 10mph.



    Guess she heard a humming, then a growling, then a horrible grinding. Pedal pressure fell off when she was pulling off that main road. Traffic was clear, luckily.

    We'd just discussed that she'd read calipers can loosen on drilled and/or slotted rotors. I assured her I used Goku strength on all bolts. The missing tube of red loctite wouldn't matter because breaker bar, I said.

    Well, it did f%&^ing matter because Jesus Balls what a close call. I wanna laugh at how subtle and stupid it is, but the bottom line is that I took a risk. A risk that was careless and moreover, needless. Please, learn from this. It could've been much worse than a scratched caliper.

    I mean ..sh*t, man ..my kid rides in that car.

    I dunno what to say besides I'll be taking an extra long pow-wow break tonight.. ..what a somber moment.

  2. #102
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Default Re: 2005 CompG - Assembly mishap. Please take note!

    I've never used loctite on caliper bracket bolts. I always impact them on and never had one come off.

    I don't think the pad/rotor combo would make it any different, just bad luck.

    SMGPFC Member #1

  3. #103
    I can't car too good. SaukRapids's Avatar
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    Default Re: 2005 CompG - Assembly mishap. Please take note!

    I'll be in there tomorrow to poke around and check all four corners. That other bracket bolt was loose too, just not as loose. Gotta see if there's any other damage.

  4. #104
    GT Level Member CHI2000GTP's Avatar
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    Default Re: 2005 CompG - Assembly mishap. Please take note!

    Glad everyone's OK man. Hopefully no significant damage. I will soon be buying rotors myself, so I Googled this phrase "calipers can loosen on drilled and slotted rotors" and didn't really find anything about it. Got to page 5 of the results, which is deep, lol. I would be interested in reading about this.
    2000 GTP 4DR - Stock
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  5. #105
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    Default Re: 2005 CompG - Assembly mishap. Please take note!

    I never use red on the bolts either, and the rotors used shouldn't really matter. Glad nobody was hurt, post your findings.

  6. #106
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    Default Re: 2005 CompG - Assembly mishap. Please take note!

    Glad your ok. I never use loctite on brake stuff. I seem to damn near have to round off the bolt to get them out sometimes. If I were to try some I would lean towards blue. Red is a SOB to take off. Was it the caliper bolt or bracket bolt that backed out?


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  7. #107
    GXP Level Member Turbocharged400sbc's Avatar
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    Default Re: 2005 CompG - Assembly mishap. Please take note!

    ive realy only seen this on vehicles where the caliper brakets were painted/powdercoated on the seating surfaces.

    also seen with PC pulleys/etc

    paint/PC is not a structural coating like zinc or actual plating
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  8. #108
    I can't car too good. SaukRapids's Avatar
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    Default Re: 2005 CompG - Assembly mishap. Please take note!

    I have air tools. Not enough space in garage with all the winter crap in there, bleh.

    Well, I wasn't ready to talk physics last night. Walked the road a bit later and again this am looking for that bolt. Couldn't find it.

    Been to the garage too, after remembering two distinct possibilities. Less likely is that there's been a slight shudder when backing and turning right since we bought it. I lifted the front, turned wheels to lock both ways and couldn't replicate. It must shake under effort ..but enough to vibrate a caliper's bolts out? Probably not. May test with a helper wheels on the ground.

    I'm %93 certain that when I did that side, I used a deep impact socket and small extension for the breaker. There's creeping intuition that the tool may have bound. No marks from quick inspection. Gonna try lining tool back up and see later.


  9. #109
    I can't car too good. SaukRapids's Avatar
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    Default Re: 2005 CompG - Assembly mishap. Please take note!

    Quote Originally Posted by Turbocharged400sbc View Post
    ive realy only seen this on vehicles where the caliper brakets were painted/powdercoated on the seating surfaces.

    paint/PC is not a structural coating like zinc or actual plating
    Good info. I'll check because the stock ones don't have red where the bolts touch.

    The powerstop ones might.

  10. #110
    I can't car too good. SaukRapids's Avatar
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    Default Re: 2005 CompG - Assembly mishap. Please take note!

    Quote Originally Posted by markpa View Post
    Was it the caliper bolt or bracket bolt that backed out?


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    Bracket. I'll try and get pics up today.

  11. #111
    I live far away. WarStryker13's Avatar
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    Default Re: 2005 CompG - Assembly mishap. Please take note!

    If the powdercoat or paint cracked and flaked off in between the mating surfaces, that would have caused a gap when it fell out during normal road vibrations and made it instantly loose.

    I've seen something like this once before, but with an old wheel... It was a demo derby car that had "painted" steel wheels put on because aluminum isn't good for repeated crashing. The paint turned out to be about 8 layers thick, and cracked when the lugs were tightened down.

    Needless to say, the wheels came flying off in spectacular fashion halfway through the race.
    Might as well go big, you're going home at the end of the day regardless.
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  12. #112
    GrandPrix Junkie spazzz's Avatar
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    Default Re: 2005 CompG - Assembly mishap. Please take note!

    I just ordered some Powerstop Impalas last night.

    I tap them tighter with a 5 pound mall and half inch socket wrench after wiffing on them.
    Last time I used red loctite and wasn't looking forward to tapping them out with the mall. It was bad enough disassembling with the stock fastener juice.

    I will definately file the powder coat off the inside bolt ears and use blue loctite this time.

  13. #113
    I can't car too good. SaukRapids's Avatar
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    Default Re: 2005 CompG - Assembly mishap. Please take note!

    The rim essentially looked like this when I arrived. The upper bracket bolt fell out. The caliper tipped forward on the lower bolt, hitting the rim. (from google images)



    Here's what I found. Very light scoring on the pads.



    The only mark on the rotor. Not sure what it is, haven't cleaned it. Doesn't feel like a gouge.



    Rings on the inside of rim.



    Ouch, my epidermis!



    And guess what, worn off powdercoat.



    When she said she stopped right away, it must've been right away ..because this didn't happen.



    Getting a bolt. I have new pads, should I use those or just reinstall? I'm probably going to just put it back on.

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