Yesterday I finally picked up the new mech from the local decathlon and got around to setting to work before today's commute.
I got the new FD clamped on roughly in the right place and threaded up a new cable.
Measured the chain and found it was exceeding .75 so binned that. decided to thoroughly clean the chainrings and give them a closer look for wear as I had a feeling they was getting a bit long in the tooth. I dont think I was wrong...
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I dont think the granny ring looks too bad but the other two are looking worn to my eye. They have 15'000+ all weather, grotty, north of england daily miles on them so I can't really complain especially seeing as I managed 364 days activity last year so maintenance slipped. ( I was going for 365 but missed the day the Mrs Tomb pushed out the heir).
So I am now trying to source a replacement 48/38/28 8 speed compatible triple rather than replacing the rings. I think the square taper receiver is worn, its been on and off about 8 bottom brackets of dubious quality including one occasion where it worked loose and now seems to have a permanent wobble.
Never the less I put it back together with a newish part worn chain. As i re-threaded the chain I notice that the tension jockey wheel was like a dick in a bucket. There was rub marks on the cage and this slop would probably explain the chattering noise. I remembered I had bought a spare pair of jockey wheels and eventually found them and fitted them. I then threaded the chain and started to set up the new FD, noting something was amiss I spotted this.
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(yes i know the chain on the bike behind is filthy - its not been used for 18 months.)
I initially thought that I had miss-threaded the chain and was cursing the stupid Shimano Quicklinks (as opposed to the KMC type) when I stopped and noticed the chain was routed the same as on the bike behind. I scratched my head and noticed that the mech was not pivoting around the pivot closest to the hanger. This just about moved by hand and corrected the chain routing. I couldn't find a suitable key to undo the pivot so all I could do was lube and grease as best I could. It's better and operates now but is still tight and will need further attention.
With the bike at least operational got on with tiling the conservatory roof.
I now need to make up my mind on the replacement chainset, but 8spd triples with 48t outers seem to be getting a bit rare.