17 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHLocking Wheel Nut Failure - Page 1 - Boxster/Cayman - PistonHeads UK
Leading reported evidence
Replace most of the original bolts
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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.
Discussions that performed work without a confirmed outcome
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.
Performed · outcome unconfirmed
By the time my old 986 got to 10 years old I had replaced most of the original bolts because the collars were literally turning to powder.
Leading evidence: 'Replace most of the original bolts' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'rears being more 'valuable'' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Recommend mcguard if you need' (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.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
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.
Discussions that performed work without a confirmed outcome
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.
Performed · outcome unconfirmed · Original poster
I use a small hammer to check that the locking part is properly seated, I'm careful to keep the wheel wrench at the correct angle to keep the locking nut fully engaged --- and then I tap it loose form the bolt once it's removed ...
I use a small hammer to check that the locking part is properly seated, I'm careful to keep the wheel wrench at the correct angle to keep the locking nut fully engaged --- and then I tap it loose form the bolt once it's removed ...
I use a small hammer to check that the locking part is properly seated, I'm careful to keep the wheel wrench at the correct angle to keep the locking nut fully engaged --- and then I tap it loose form the bolt once it's removed ...
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.
Discussions that suspect a cause
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.
Suspected cause
(On a 986 actually, but still...) I wondered if it was due to the rears being more 'valuable' to the types likely to pinch them, but then again could be rubbish.
(On a 986 actually, but still...) I wondered if it was due to the rears being more 'valuable' to the types likely to pinch them, but then again could be rubbish.
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.
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
I can recommend McGuard if you need to buy replacements.
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.
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 · Original poster
It's a particular problem on the trackday recommended torque settings of 120 ft lbs ...
Discussions that performed work without a confirmed outcome
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.
Performed · outcome unconfirmed · Original poster
I use a small hammer to check that the locking part is properly seated, I'm careful to keep the wheel wrench at the correct angle to keep the locking nut fully engaged --- and then I tap it loose form the bolt once it's removed ...
I use a small hammer to check that the locking part is properly seated, I'm careful to keep the wheel wrench at the correct angle to keep the locking nut fully engaged --- and then I tap it loose form the bolt once it's removed ...
I use a small hammer to check that the locking part is properly seated, I'm careful to keep the wheel wrench at the correct angle to keep the locking nut fully engaged --- and then I tap it loose form the bolt once it's removed ...
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
rears being more 'valuable'
No successful repair reported for this finding.
0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
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.
Suspected cause
(On a 986 actually, but still...) I wondered if it was due to the rears being more 'valuable' to the types likely to pinch them, but then again could be rubbish.
(On a 986 actually, but still...) I wondered if it was due to the rears being more 'valuable' to the types likely to pinch them, but then again could be rubbish.
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.
17 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
PistonHeads: 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: 20261026T203514Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hello
I swapped my wheels last night and the Locking Wheel Nut Key adapter has failed. Is this normal for a Porsche?
I'm trying to decide if I should replace with new lockers or just get bolts.
Thanks
I bought a new set. It seems that my old key had slipped inside the outer slightly. So the inner section was protruding on the inside less than it should. Probably due to impact/s of some sort. This meant the key was interfacing with the nut less than it should. This led to the failure. Not sure if anyone is interested but it is worth checking yours. A key failure will lead to the nuts being tricky to remove as were mine.
ATM said:
12 reg
Statute of limitations goes back 6 years, so you're in with a chance!
It's not as if it has any moving parts so I'd be speaking to my OPC.
It's a particular problem on the trackday recommended torque settings of 120 ft lbs ...
I use a small hammer to check that the locking part is properly seated, I'm careful to keep the wheel wrench at the correct angle to keep the locking nut fully engaged --- and then I tap it loose form the bolt once it's removed ...
It's not the best !
Cx.
ChrisW. said:
It's a particular problem on the trackday recommended torque settings of 120 ft lbs ...
I use a small hammer to check that the locking part is properly seated, I'm careful to keep the wheel wrench at the correct angle to keep the locking nut fully engaged --- and then I tap it loose form the bolt once it's removed ...
It's not the best !
Cx.
If I was going that hard I think I replace them with some standard hex nuts.
ATM said:
ChrisW. said:
It's a particular problem on the trackday recommended torque settings of 120 ft lbs ...
I use a small hammer to check that the locking part is properly seated, I'm careful to keep the wheel wrench at the correct angle to keep the locking nut fully engaged --- and then I tap it loose form the bolt once it's removed ...
It's not the best !
Cx.
If I was going that hard I think I replace them with some standard hex nuts.
There is nothing fundamentally wrong with the locking nut and removal tool, but the tool is an interference fit and needs to be located firmly before attempting to remove the nut as mentioned above.
Wilmslowboy said:
failed on my Mrs Cayenne .... new locking nut required..only £14 but had to wait 6 weeks
Failed on mine too and wait time for me was 3 weeks. Parts department noted that 4 other folk were also waiting. Was told that my swapping of wheels (summer-winter) each year was "over use" of them. Hmmm.
ChrisW. said:
It's a particular problem on the trackday recommended torque settings of 120 ft lbs ...
I use a small hammer to check that the locking part is properly seated, I'm careful to keep the wheel wrench at the correct angle to keep the locking nut fully engaged --- and then I tap it loose form the bolt once it's removed ...
It's not the best !
Cx.
I guess nobody is going to steal the wheels as you are hammering around the track so why not use normal bolts if you are re-torqueing at track?
edc said:
I guess nobody is going to steal the wheels as you are hammering around the track so why not use normal bolts if you are re-torqueing at track?
That is exactly what I have done ...
Odd question but is it normal to only have locking nuts on the rear, not the fronts? (On a 986 actually, but still...) I wondered if it was due to the rears being more 'valuable' to the types likely to pinch them, but then again could be rubbish.
snotrag said:
Odd question but is it normal to only have locking nuts on the rear, not the fronts? (On a 986 actually, but still...) I wondered if it was due to the rears being more 'valuable' to the types likely to pinch them, but then again could be rubbish.
More likely that the ones on the front had corroded so badly that the owner replaced them with normal bolts. By the time my old 986 got to 10 years old I had replaced most of the original bolts because the collars were literally turning to powder. The car was used in all weathers so the bolts got exposed to lots of rain and winter salt.
This is a source reference. Confirm exact model applicability in the original material.
