I give it a good look over and the crank (non-driveside) is freely sliding on and off the splined axle. I distinctly remember this being impossible when I originally fitted the crank to my old bike as it was such a tight fit (and hence the need for a crank puller). This is no longer the case.
He's fitted it back on for me but considering it's only being held on by the securing bolt/screw I can't trust it enough to ride the bike.
Has he broken my crank? What should I do?
This is nice example as to why you should buy the tools and do it yourself.
So, you gave him a second chance?
I don't think we are able to forecast over the internet if it's going to be OK or not. Either you trust the guy or you don't.
How many drivers does a buggy have?
So let's just say I'm drivin' this buggy...
and if you fix your attitude you can ride along with me.
I'm taking it to another shop for a second opinion tomorrow but would basically like as much evidence as possible to take this guy down - if it's broken, he owes me a crank.
- Shop Owner / Manufacturer
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- Location: UK
A torque wrench *is* required - that is why Campagnolo give a torque setting for the axle end bolt.
If the crank is not driven the correct distance up the splines, which are tapered, it can fret and deform and will indeed eventually fall off - it will behave in essence just like an under-tightened square taper crank.
It may be that the splines are also damaged, careful examination required by (we would advise) ourselves if you are in the UK, or someone very familiar with PowerTorque and who has spare units to cross-check against.
You don't say if the crank is alloy or carbon - it may be that the alloy insert, for whatever reason, has failed in the carbon, if it's the carbon crank, so allowing you to push the crank freely up the splines of the BB axle - as I would be surprised if wear caused in a single 30km ride was enough to make this possible, though it does of course depend how far up the splines the crank will push by hand.
This is not a problem that Campagnolo have an case open for at Vicenza as far as I know, so it sounds as if it *may* be a fitting error - but every (potentially) warranty-type case has a first occurrence, so it would be useful for a Service Centre to look at this for you.
Head Tech, Campagnolo main UK ASC
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