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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHCaliper bleed nipples seized
Leading reported evidence
Install stainless ones in mine
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
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0
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1
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Read evidence and context
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Suggestion
Make sure it's a snug fit (if you've cleaned the rust and crud off, depending on the state of the nut you may need to tap the socket on - do not use a size up as it'll slip and chew the flats).
Leading evidence: 'Install stainless ones in mine' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean rust and crud off, depending' (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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Performed · outcome unconfirmed
I used Irwin mole grips on the brake fitting and once cracked wiggled it backwards and forwards till free.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Suggestion
Make sure it's a snug fit (if you've cleaned the rust and crud off, depending on the state of the nut you may need to tap the socket on - do not use a size up as it'll slip and chew the flats).
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Suggestion
Old engineers trick is to use candle wax (youtube it)
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Suggestion
Have a search on Youtube and you'll see a few people using the hammer trick.
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Clean rust and crud off, depending
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Make sure it's a snug fit (if you've cleaned the rust and crud off, depending on the state of the nut you may need to tap the socket on - do not use a size up as it'll slip and chew the flats).
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
12 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T113718Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Had a horrible time with mine on the 997. Tried all sorts.
The most successful and risk free method I found was to use a proper 6 point socket on top, with a T handle to avoid unnecessary loads.
Having said that, I still ended up having to send mine away to have some drilled out.
Good luck.
As above.
Also, clean up around them as best you can with a small brass brush (or wire brush or toothbrush if that's all you've got). Plusgas on the outside and down the hole (obviously you'll need to bleed them).
Tap on top (not on the side) with a hammer before, during and after soaking with plusgas.
To undo them use the six sided deep socket. Make sure it's a snug fit (if you've cleaned the rust and crud off, depending on the state of the nut you may need to tap the socket on - do not use a size up as it'll slip and chew the flats).
Then the moment of truth. I don't know if it's psychological but with some sticky fasteners I preload the socket by pulling on it then, at the same time, tap it with a hammer to crack the fastener off.
Finally a big dose of good luck!
GCR fitted stainless ones in mine. Fortunately all came out OK.
I also had a challenge removing the short brake pipe between the calliper and hose. Rusted so much a spanner wouldnt fit. I used Irwin mole grips on the brake fitting and once cracked wiggled it backwards and forwards till free.
Good luck!
Went through this recently as the previous owner had sheared the 2 outside ones on the front on both sides. I managed to remove the remaining 6 by doing the following:
- Apply heat to the calliper around the nipple. Don't use a really high heat torch like oxy as you'll turn the calliper to liquid.
- Tap around the calliper with a small hammer, also tap the nipple itself. Note I'm saying tap and not smack.
- Get a 6 point socket or spanner on the nipple with a reasonable length handle
- Tension the spanner/ratchet then smack the end round to undo it
Useful things I learned:
- Releasing oil/spray such as WD, Plusgas etc doesn't do much to ease the galvanic bond between steel and aluminium. Old engineers trick is to use candle wax (youtube it)
- Shocking the threads (by hitting the spanner round) is less likely to shear the bolt than the constant force of just hauling on it.
Thanks all, I've soaked them in wd40 as that's all I currently have, I've given them a tap with a hammer also. I'll likely try the nipples again tomorrow and see how it turns out from there. Good tip with the hammer as I didn't know that.
Have a search on Youtube and you'll see a few people using the hammer trick.
I see you're in Fife. If it all goes wrong and they end up shearing I used West of Scotland Engineering in Glasgow to drill mine out. They said it's a pretty common job for them drilling the bleeders out of Brembos. They have a contract with Taggarts (jag/Land Rover) just for that service.
Innotec deblock is the best release agent i have ever used.
It actually does what its designed to but does need time to dwell,24/48 hrs.
I would deblock it,then tap the nipple lightly after 2 days then go to undo. If that doesnt work then its drill out time.
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