Hi guys wondering if anyone can help me brainstorm a way to fix this if my attemps fail.
I am in a town with no bike shop and just arrived via bus. We stupidly did not remove the chain tensioner from one of the bikes and it must have hyper extended and the spring inside slipped and gouged a strip off so now it won't hold tension. We tried just shortening the chain (this has worked for me in the past) but the cog sizes unlucky won't allow a tight enough chain so there is still some slack. We tried removing more but it was dangerously too tight (snapped one of the master links).
We have this tensioner
I managed to get some JB weld from a hardware store and I put some inside around the gouge where the spring was slipping, hopefully this may hold the tensioner in place, but I won't know for another 14 hours (the drying time).
Is there anything else I could grab from a hardware store to tension the chain? I should mention I have messaged every person I could find with a bike or part for sale in this town to see if they have an old rear derailleur or a tensioner.