Guys, I am coming back with a technical question.
So, since 2-3 days I hear some strange repetitive noises coming from the chain.
2 days ago I've done a normal adjustment to the chain and the mark lines were at 4 lines. Today (after ~800 kilometers) I've discovered the chain was VERY loose (almost touching the central stand) I've tightned it again and I had to go all the way to only 3 lines to make it OK.
So that's very much in very little kilometers... And after adjustment the "hrsh hrsh" repetitive sound hasn't went away...
The chain is an EK 525, installed in Guatemala, has ~18000 kilometers. It is clean and lubed regularly. Until 2-3 days ago everything seemed OK, no chain noise no nothing. Nothing strange happened and we've used it mostly on-tarmac (other than some offroad in Peru, Bolivia and in Argentina). But no more than 1000 km in total out of those 18 000. So I was relaxed thinking the chain is about mid-life but now... this happened.
We are now in El Calafate so I am a little in doubt what should I do? Any idea about what would cause this and what would be the best course of action? Continue on to Ushuaia or... ?
Thanks for the help.