My right shifter is reluctant to drop into a higher gear when I pull the shift lever with my finger. If I push it it works fine.
Flushed out with gt85 and it seems a bit better but still not great. Is there anything I can do or is it time for the bin?
Opened it up to see there is nothing screwing up the internals?
Not yet- thought I'd ask first. I opened a X9 shifter once and it didn't go well- was finding bits of it for weeks!
GT85 won't do anything just attracts grit, open it up as frosty says get your self a good quality white grease degrease the shifter clean it up with a toothbrush taking care not to damage the internals and then grease her up! this has fixed 99% of shifters I've worked on.
Grand- will give that a go. Anything to watch for when removing the cover (springs etc)
i've had a good success rate with broken road shifters. i'd be inclined to open it up.
have a good search and see if it's been done before. i [badly] google translated a japenese how to for the road STI. was quite helpful; at least the pictures were!
see shimano techdocs for exploded views.
From my experience it is only the tiny little screws you need to keep an eye you don't want to lose them as you will never find them again.
[i]exploded views[/i]
always a slightly worrying term when applied to small mechanical devices with strong springs inside them!
An exploded view is usually the last chance you get to see half the components when taking the cover off.
I'd already checked the exploded views but they don't help much. Just show how casing and mount is screwed together.
I guess I've nowt to lose so will give it a go tomorrow.
Top tip.
Sit in the bath when you do it... (Plug hole blocked of course) 🙂
Pmsl!!
Somehow I don't think t'Boss would approve
Usually there's a little pawl, controlled by a hair-spring, that pivots on a shaft, this often gets gummed up. A drop of GT85 on the pivot, combined with moving it, generally solves the problem. Blasting it from outside will usually miss the affected area, and you won't be able to work it either. Disassembly only requires removing the casing, not any of the working mechanism.
It's always worth checking the shifter isn't fouled by your grips.
Good point, or pressing against your brake lever as well.