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Brake Rotor Bolts (Read 153 times)

scubachef

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Brake Rotor Bolts
03/19/13 at 08:45:17

I'm currently doing the conversion to cast GS wheels and came across two questions not related to the switch but more for my own knowledge and a search did not yield answers.

There is a copper colored film on the inside of the rotor where the shoulder of the bolt sits.....what is it and what purpose does it serve?

The threadlocker on these bolts was strong to say the least. Is this a special compound for this application that Suzuki used and I should try to find or do you think I am safe with Loctite?

The PO was the original and did not touch the brakes so both items were factory applied.

I will be posting the wheel swap when I'm finished in case I stumble on something that hasn't been covered yet. As always, thanks for the comments/help.

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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28886 L.A. California Gender:	Re: Brake Rotor Bolts Reply #1 - 03/19/13 at 08:49:30 The locktite used from the factory is whitish. That maybe a rust preventative... either plating or just a smear of something. Haven't really noticed it before.
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scubachef Full Member Offline SuzukiSavage.com Rocks! Posts: 140	Re: Brake Rotor Bolts Reply #2 - 03/19/13 at 09:29:45 Yes the threadlocker kind of looks like the pipe compound you would use to seal threads in plumbing applications. Oh, the bike was produced in '96 if that has any bearing on anything.
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oldNslow Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 2683 Rochester, NY Gender:	Re: Brake Rotor Bolts Reply #3 - 03/19/13 at 09:43:35 Im guessing it's some kind of anti-seize compound. Mostly it's silver colored but I have seen gold/copper colored stuff. In the hole where the shoulder of the bolt sits would be the logical place for it.
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28660 Tucson Az Gender:	Re: Brake Rotor Bolts Reply #4 - 03/19/13 at 12:04:55 No ideere... but them bolts is some tough boogers...
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Gary YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 15	Re: Brake Rotor Bolts Reply #5 - 03/19/13 at 18:09:31 Sometimes copper anti-seze it hightemp.
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ZAR Serious Thumper Offline Rock this town! Rock it inside out! Posts: 961 Kentucky, USA Gender:	Re: Brake Rotor Bolts Reply #6 - 03/19/13 at 18:34:14 Gary wrote on 03/19/13 at 18:09:31: Sometimes copper anti-seze it hightemp. +1
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oldsavage YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 28 panhandle of florida Gender:	Re: Brake Rotor Bolts Reply #7 - 03/19/13 at 20:11:52 Looks like the spray on copper gasket seal, I used 3 layers to build up my head gaskets. Maybe the bolt shank was a bit loose the last time it was changed and they used the copper combpound to beef it up and make it tight?
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scubachef Full Member Offline SuzukiSavage.com Rocks! Posts: 140	Re: Brake Rotor Bolts Reply #8 - 03/19/13 at 21:31:13 Anti seize makes sense. It is on all the bolts and they are really tight so I can see anti seize being there. Cool, mystery solved I guess.
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Digger Serious Thumper 2005 No Login Offline Ya gotta be tough to ride singles! Posts: 1604 Colorado Springs, CO Gender:	Re: Brake Rotor Bolts Reply #9 - 03/22/13 at 20:20:36 scub, In the top photo in the original post, it almost looks as if the copper-colored film has flaked off. Is that truly the case?
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scubachef Full Member Offline SuzukiSavage.com Rocks! Posts: 140	Re: Brake Rotor Bolts Reply #10 - 03/26/13 at 21:59:15 Yes, it is a paper thin layer and is not pliable. In some of the holes it flaked out and in 2 it remained intact in the hole.
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WD Serious Thumper 2005 No Login Offline Professional "scooter trash". Posts: 5207 Rosemark TN Gender:	Re: Brake Rotor Bolts Reply #11 - 03/26/13 at 22:43:54 Copper spray to kill galvanic corrosion between the rotor bolt (one kind of steel), rotor (a different kind of steel) and the alloy hub. It's a placebo, the bolts are still going to corrode where the 3 dissimilar metals meet. Old boat thing (ex-Navy). Doesn't always work.
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scubachef Full Member Offline SuzukiSavage.com Rocks! Posts: 140	Re: Brake Rotor Bolts Reply #12 - 03/27/13 at 07:31:45 Well alright, I have learned something new and haven't even had my morning coffee yet Thanks WD
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