Do/should mechanics checked for fatigued/stretched studs?

[SpeedySpeedBoy]

I recently had two wheel studs snap on different wheels(in one case a wheel came off) and I was wondering if I needed to change all studs on car or only the broken studs since all wheel could have been over torqued, under torqued, cross threaded etc.

I asked two different mechanics and they said you only needed to change the broken studs.

I then read articles online which say even though there is no visible thread damage, due to over tightening, under tightening etthe others may become fatigued or stretched and this could cause them to eventually snap. Apparently there are ways to test these e.g. magnifying glass and measuring stud lengths as I've seen some guys on q and a websites mention.

However when I mentioned this to two different mechanics(one who runs an mot center) both said its nonsense and they don't test for stretched or fatigued studs. They replace broken or thread damaged studs and ensure everything is torqued down properly. One said 'I don't know what you've been reading, but its nonsense and these online guys have too much time on their hands'.

After whats happened I'm very worried about having another broken stud.

After whats happened shouldn't the mechanics be testing for any remaining stretched or fatigued studs in which case are my mechanics incompetent/do I need to find new ones?
Lets say my current studs are fatigued or stretched but haven't snapped yet, going onwards provided they are torqued down properly, are the safe from snapping/coming off or will the weakened studs fail soon\over time?

Edited by SpeedySpeedBoy on Saturday 18th August 15:36

[steveo3002]

i dont think any average garage will test these for you , they should under normal use last the life of the car , so its pointing towards some tyre center has had the impact gun on them and abused them , good chance theyve all been treated the same

[SpeedySpeedBoy]

steveo3002 said:

i dont think any average garage will test these for you , they should under normal use last the life of the car , so its pointing towards some tyre center has had the impact gun on them and abused them , good chance theyve all been treated the same

An average garage not checking them and not knowing about the issue are are two different things. This is a serious issue so they can at least tell me to go and get them tested elsewhere or replace all studs to be safe, however if they don't even know about these issues should I be finding new mechanics?

Based on the chance that they have all been over\under torqued they should at least say you need to get them tested\changed however it would seem this is a very real danger and they don't even know about it. do you reckon that most average garages don't know about it?

Edited by SpeedySpeedBoy on Saturday 18th August 15:48

[Shaw Tarse]

Which thread https://www.pistonheads.com/gassing/topic.asp?h=0&...
https://www.pistonheads.com/gassing/topic.asp?h=0&...

[sunbeam alpine]

I'm curious - just how would you carry out the test?

[SpeedySpeedBoy]

Shaw Tarse said:

Which thread https://www.pistonheads.com/gassing/topic.asp?h=0&...
https://www.pistonheads.com/gassing/topic.asp?h=0&...

Hey retard, they are completely different topics, one is asking about the legality of missing a stud, and another is asking about if anything can be done about whoever caused the broken stud, and this thread is asking about repairing studs and competency of mechanics. Is that so difficult to see??!!

Why do some of you guys just have to always dig threads up for the sake of it? I guess the mechanic was right about one thing though - some of these online guys just have too much time on their hands.

[steveo3002]

sunbeam alpine said:

I'm curious - just how would you carry out the test?

possibly measure an old one vs brand new , not sure that would tell

cheaper to get them all replaced if you think theres been abuse , but no garages dont go around testing bolts and studs

[guards red]

First thing you need to check is that the nuts you are using are correct for the wheel and the car. Using the wrong nuts can cause snapped studs.

[Krikkit]

Just replace them all - they're not that expensive, and chances are if they've been seriously overtorqued in the past (which I assume is their failure cause?) they might all be overstretched.

[Plate spinner]

Krikkit said:

Just replace them all - they're not that expensive, and chances are if they've been seriously overtorqued in the past (which I assume is their failure cause?) they might all be overstretched.

Exactly

[BugLebowski]

SpeedySpeedBoy said:

One said 'I don't know what you've been reading, but its nonsense and these online guys have too much time on their hands'.

Pretty much sums it up tbh

[meehaja]

I’ve just been through a week of car trouble hat ended up with an ovalled wheel nut hole, the loss of 4 out of 5 bolts and some expensive garage work. Suggestion was the powder coat on the wheels may have been “soft” allowing the bolts to work loose, but I’ll be replacing 20 anyway, just in case as none of the wheels were on as tight as I’d like.

[Alucidnation]

Definately worth a claim for some compo OP.

[gareth_r]

meehaja said:

I’ve just been through a week of car trouble hat ended up with an ovalled wheel nut hole, the loss of 4 out of 5 bolts and some expensive garage work. Suggestion was the powder coat on the wheels may have been “soft” allowing the bolts to work loose, but I’ll be replacing 20 anyway, just in case as none of the wheels were on as tight as I’d like.

If the powder coaters knew what they were doing, they would have masked the mating surfaces.

Nut/bolt to wheel and wheel to hub should be metal to metal.

[vikingaero]

Seriously OP, can you imagine every fitter at Kwik Fit/ATS/Independent getting a magnifying glass out and measuring every stud they take off?

[Alucidnation]

Yes, he is going to start a campaign to lobby the relevant bodies to include this as part of servicing and maintenance at car workshops.

And obviously, anyone working on their own car must also get them checked and signed off in the appropriate manner.

[750turbo]

SpeedySpeedBoy said:

Shaw Tarse said:

Which thread https://www.pistonheads.com/gassing/topic.asp?h=0&...
https://www.pistonheads.com/gassing/topic.asp?h=0&...

Hey retard, they are completely different topics, one is asking about the legality of missing a stud, and another is asking about if anything can be done about whoever caused the broken stud, and this thread is asking about repairing studs and competency of mechanics. Is that so difficult to see??!!

Why do some of you guys just have to always dig threads up for the sake of it? I guess the mechanic was right about one thing though - some of these online guys just have too much time on their hands.

Why - Because you are a troll, and not even a good one by PH standards

1/10

[Pericoloso]

750turbo said:

SpeedySpeedBoy said:

Shaw Tarse said:

Which thread https://www.pistonheads.com/gassing/topic.asp?h=0&...
https://www.pistonheads.com/gassing/topic.asp?h=0&...

Hey retard, they are completely different topics, one is asking about the legality of missing a stud, and another is asking about if anything can be done about whoever caused the broken stud, and this thread is asking about repairing studs and competency of mechanics. Is that so difficult to see??!!

Why do some of you guys just have to always dig threads up for the sake of it? I guess the mechanic was right about one thing though - some of these online guys just have too much time on their hands.

Why - Because you are a troll, and not even a good one by PH standards

1/10

And insulting a moderator is always advisable.

I was going to add some valuable input ,wont be bothering now.

I'm sure you're upset about that.....

I was a mechanic for 16 years ,never once saw a broken wheel stud.

[AlexRS2782]

SpeedySpeedBoy said:

Shaw Tarse said:

Which thread https://www.pistonheads.com/gassing/topic.asp?h=0&...
https://www.pistonheads.com/gassing/topic.asp?h=0&...

Hey retard, they are completely different topics, one is asking about the legality of missing a stud, and another is asking about if anything can be done about whoever caused the broken stud, and this thread is asking about repairing studs and competency of mechanics. Is that so difficult to see??!!

Why do some of you guys just have to always dig threads up for the sake of it? I guess the mechanic was right about one thing though - some of these online guys just have too much time on their hands.

Quite amusing you calling someone a retard based on your post / thread history on here

Is this the same car that supposedly broke down on the M25 and then got removed / towed after you somehow managed to get yourself arrested by TrafPol whilst waiting for the RAC?

[rxe]

You can’t test them without serious expense. They’re not precision components, if one is 0.1 mm longer than another, it’s that a manufacturing tolerance or stretch?

To test them properly you’d need to x-ray them, you might pick up cracks with some sort of magnaflux type process.

Much cheaper to buy a new set if you’re really worried about them.