broken chain mystery
Re: broken chain mystery
Got a pic of the same link from the side?
It looks like it had fractured a while ago by the corrosion on the exposed metal?
It looks like it had fractured a while ago by the corrosion on the exposed metal?
Re: broken chain mystery
Looks like that's a tight spot on chain where there is very little movement and its stressed
Re: broken chain mystery
Were you the kid at school who copied off everyone?SMUDGER wrote:Looks like that's a tight spot on chain where there is very little movement and its stressed
Re: broken chain mystery
Haha I don't read other ppl comments lollee wrote:Were you the kid at school who copied off everyone?SMUDGER wrote:Looks like that's a tight spot on chain where there is very little movement and its stressed
Re: broken chain mystery
Yeah yeah ...SMUDGER wrote:Haha I don't read other ppl comments lollee wrote:Were you the kid at school who copied off everyone?SMUDGER wrote:Looks like that's a tight spot on chain where there is very little movement and its stressed
Re: broken chain mystery
[quote="lee"]Got a pic of the same link from the side?
It looks like it had fractured a while ago by the corrosion on the exposed metal?[/quote
that was my thought.
It looks like it had fractured a while ago by the corrosion on the exposed metal?[/quote
that was my thought.
Re: broken chain mystery
Doubtful that corrosion would have caused the failure, unless it was very badly pitted. It's also possible that acid cleaning has compounded a slight flaw in the material.
Was it the soft link (joining link)? If so it is likely that a stress fracture was caused buy the link being peened.
The pin looks in good condition so unlikely to be caused by a tight link. The cause could also be from a single high force incident ie sudden impact.
Could have been a small inclusion in the material.
Without a good look at the fracture face to asses the type of break it's hard to say.
PS this is the sort of thing I do for a day job.
Last year I had an expensive chain (£120) break, clean through a link, stress fracture. Nowhere near the soft link.
Bought a chain for £60 due to emergency, I have only just adjusted it after 2.5k miles, including 2 trackdays.
Was it the soft link (joining link)? If so it is likely that a stress fracture was caused buy the link being peened.
The pin looks in good condition so unlikely to be caused by a tight link. The cause could also be from a single high force incident ie sudden impact.
Could have been a small inclusion in the material.
Without a good look at the fracture face to asses the type of break it's hard to say.
PS this is the sort of thing I do for a day job.
Last year I had an expensive chain (£120) break, clean through a link, stress fracture. Nowhere near the soft link.
Bought a chain for £60 due to emergency, I have only just adjusted it after 2.5k miles, including 2 trackdays.
- Cabernet
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Re: broken chain mystery
I love ❤ my shaft.
A Kentish man living in Manchester.
"As soon as he (Tozzi) started with the personal remarks I assumed he was struggling with the rest of his case", Ross Brawn 2009,
"As soon as he (Tozzi) started with the personal remarks I assumed he was struggling with the rest of his case", Ross Brawn 2009,
Re: broken chain mystery
Face to arses? Don't think I'd like your job mate, sounds a bit shit if you ask me lolDooffle wrote:
face to asses...
PS this is the sort of thing I do for a day job.
Viva BMW shaft drive \o/
Re: broken chain mystery
Dirty buggerer, although you should have written "I love to get shafted" ha ha haCabernet wrote:I love my shaft.