Service Manual Question
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Safety Car
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Service Manual Question
Anyone here have access to a current GM Corvette service manual for the C7 2019 Grand Sport? I am taking delivery of a new 2019 Grand Sport in about a month and the first thing I plan on doing is swapping out the Brembo brake pads. There is a 13 mm center bolt that holds the brake pad assembly to the caliper. Can you tell me if the service manual calls out instruction about reinstalling this bolt with a coating of either Locite Blue, or Loctite Red, or some other OEM GM thread lock, or does it say no thread lock is needed? TIA.
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Racer
Joined: Apr 2013
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From: york south carolina
Im a big fan of anti seize especially where its known to rust. Some manuals may request nothing on them but i myself b put a light coat to make me feel better especially when i know ill be back to check them again. This is just my 2 cents
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Safety Car
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This is how I feel also. I want to insure the next time I have to remove a bolt it is that much easier to remove. If not, then your talking about having to drill the bolt out and possibly destroying the caliper.
Drifting
Joined: May 2007
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From: Huntersville, NC
The torque values are for a dry threads with no lube. Anti seize is a lube so if you torque to spec, you will putt added stress across a gap, possibly distorting the caliper. Not a great idea IMHO. You might be risking cracking the caliper
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Safety Car
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That's a very good point. I hadn't thought of that. Thanks for the input. Just wondering tho if this bolt should be rechecked for proper torque after say maybe one month? With all the heat and vibration the caliper sees wonder if I am over-thinking the safety aspect.
Drifting
Joined: May 2007
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From: Huntersville, NC
Caliper bolts
Are you tracking the car? If so you will be removing that bolt to change pads all the time. The threads are a fine pitch, and that will help keep them at torque. I don't worry about mine.
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Bill
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Lets say you are one of the people who just buys the car and drives it till the stock pads wear out in 5 or 6 years. Nobody at the factory put any thread locker on the bolt. GM doesn't seem to be concerned the bolt will come loose and potentially cause them a recall/lawsuit due to it coming apart. These brakes are used by other OEMs and they don't seem to have any issues with the bolt coming loose. As for the C7 application I haven't heard of people having issues with the bolt/nut coming loose over the last 3 years. Thus, I don't think it is something worth worrying about.
Bill
Bill