This means that my right crank arm and the chainrings are wobbling on the axled. Bad news. I know I should probably move on and chuck em in the bin but I was curious if in theory and in practice it might easily be re-bonded.
I used Araldite on a set of Aerozine MTB cranks that did this. They lasted about a year before I decided to replace them.
Get them spotlessly clean with solvent (I used brake cleaner) and warm them up with a blowtorch or hot air gun to make the epoxy flow properly. Make sure you remove the excess before it hardens.
I have successfully rebonded pedal inserts into Raceface Next carbon cranks. I drilled a hole in the end of the cranks to deliver low viscosity epoxy into the centre of the crank/insert interface and used a syringe to inject under pressure. Have had some big pedal strikes since and they're still going strong.
[url= http://singletrackworld.com/forum/topic/alloy-bb-shell-come-away-from-carbon-frame-what-adhesive ]This thread[/url]
Brave man!!!
Brave man!!!
🙂 They weren't dropping out - just a tiny bit of play - but enough movement to get some hi-flo marine grade epoxy around.
This is all very interesting, thank guys!