Shifters wearing out ?

[rowdyflat]

When a Shimano 2 way release {rear derailleur right } shifter wears and the little shifter arm wont change to a higher gear with your index finger clicking towards you but changes when you push away the little shifter with your thumb, is that because some catch inside is worn out ?
Hope I have explained what I have observed clearly .
I have pulled one apart in the past they are very complex.

 

[rowdyflat]

Will try the " take the plastic screw out and pile in the WD40."

 

[blacksp20]

I’d assume that the release mechanism has worn for the pull direction but not the push. Maybe try shifting with just your thumb.

 

[moorey]

When a Shimano 2 way release {rear derailleur right } shifter wears and the little shifter arm wont change to a higher gear with your index finger clicking towards you but changes when you push away the little shifter with your thumb, is that because some catch inside is worn out ?
Hope I have explained what I have observed clearly .
I have pulled one apart in the past they are very complex.

Who uses their finger to shift in 2021?

 

[Flow-Rider]

Use the high quality silicon spray, not the cheap wd40 crap. The thin sprays seem to work for about 2 or so rides, I've found.

 

[bear the bear]

Who uses their finger to shift in 2021?

I do, but bear has small paws....

 

[moorey]

I do, but bear has small paws....

No. That’s no excuse. Do better.

 

[shiny]

Who uses their finger to shift in 2021?

I use my finger and thumb depending for shifting down the cassette. Reason I like Shimano is that it gives the choice. Is that a paddling?

 

[rowdyflat]

Who uses their finger to shift in 2021?

Most of the people who dont know it exists and those with thumb injuries .

 

[rowdyflat]

I’d assume that the release mechanism has worn for the pull direction but not the push. Maybe try shifting with just your thumb.

Yep works but its my wife's shifter and its hard enough to get her to concentrate.
I did pile in the WD40 , may try silicon too and it seems a lot better so may be the grease is holding back the clicking thingo ?

 

[moorey]

Most of the people who dont know it exists and those with thumb injuries .

Thumb fine for heavy down shifting, but not for light up shifting?

 

[Minlak]

Yep works but its my wife's shifter and its hard enough to get her to concentrate.
I did pile in the WD40 , may try silicon too and it seems a lot better so may be the grease is holding back the clicking thingo ?

It could just be a dirt / crude / old grease build up - WD40 is not a lubricant though - put something else in there after the WD 40 dries out - Well unless you put it on your brakes then it is a pretty good lubricant it seems

 

[rowdyflat]

Yeah will put in some silicon spray after thanks everyone.