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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHAntiseize on Caliper bolts?
Leading reported evidence
Use loctite
Performed · outcome unconfirmed
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1
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Read evidence and context
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i've never used anti-sieze, nor have I used loctite.
Leading evidence: 'Use loctite' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean bolt and the threads and bolt up as normal' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
Clean the bolt and the threads and bolt up as normal.
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Suggestion
Manual says to replace the fasteners when the calipers are off and that's what I do.
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Suggestion · Original poster
I am about to do my brakes, watched a You tube video that suggest using Anti-seize on the caliper bolts.
But I do believe (also confirmed by someone else) that new caliper bolts come with a compound already applied to the threads, and so Porsche's torque value would be inclusive of using anti-seize.
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Suggestion
If you want to reuse the bolts, I wouldn't use Loctite Red in this case, way overkill, IMHO, I'd use Blue.
But I do believe (also confirmed by someone else) that new caliper bolts come with a compound already applied to the threads, and so Porsche's torque value would be inclusive of using anti-seize.
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I am about to do my brakes, watched a You tube video that suggest using Anti-seize on the caliper bolts. Is that safe? I can see using it for the rotor screws, but would it cause a problem to have it on the caliper bolts?
Any ideas?
Thanks,
The steel caliper bolts screws into the aluminum carrier. Anytime you mate steel and aluminum, you should use anti-seize to prevent corrosion and galling the threads. Additionally, the anti-seize also acts as a lubricant when screwing the bolt in, ensuring that the proper torque down value is reached through the tensile force between the bolt and housing instead of friction.
i've never used anti-sieze, nor have I used loctite. IMHO, locktite creates issues w/ gummed up threads. Once, this caused the bolt not to go in straight and wound up messing up the aluminum wheel carrier, to the tune of $1100.
I take out the bolts, and then with a wire brush, clean everything and take it nice and slow.
torque to proper values. never had an issue on or off the track.
Adding anti slip affects the torque value (metal-lubricant-metal now not metal-metal) and you’re more likely to effectively over torque due to the lubricancy of the anti slip and consequently strip the thread.
Clean the bolt and the threads and bolt up as normal.
As Doug said, Porsche recommends replacement of the caliper bolts as one time use. The new bolts are coated with something, easy to see. FWIW, the originals are Allen/Hex, and the replacements I got from Suncoast are Torx (55? anyone?), so be aware if you don't have the Torx, you may get them out but not in without a trip to the parts store. If you want to reuse the bolts, I wouldn't use Loctite Red in this case, way overkill, IMHO, I'd use Blue.
I've seen calipers get so hot on tracked/raced cars that the painted bodies get scorched and discolor. Moderate heat will make Loctite totally ineffective, except maybe the green. That will make disassembly difficult. Certain things on vehicles are susceptible to loosening due to vibration, others are not. If the caliper bolts are, and one tracks/races the best thing to do is use a mechanical locking device such as drilling the bolt heads and safety wiring.
Yes, you are correct - anti-seize or other lubricants will artificially raise the torque value. But I do believe (also confirmed by someone else) that new caliper bolts come with a compound already applied to the threads, and so Porsche's torque value would be inclusive of using anti-seize.
This is a source reference. Confirm exact model applicability in the original material.
