fossyant
Ride It Like You Stole It!
- Location
- South Manchester
You probably won't need to dismantle it. Check the calliper moves OK, check the cable, then drown it in GT85 (pads removed) and clean it up.
Shimano Tiagra rear brake caliper: Brakes apply OK, but won't release...
- Thread starter Mazz
- Start date
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cyberknight
As long as I breathe, I attack.
- Location
- Land of confusion
I have a pair of tiagra brakes that the lever that you move to open the brake up doesnt do anything anymore .
I think mine's getting like that - the amount of movement is negligible.
fossyant
Ride It Like You Stole It!
- Location
- South Manchester
Needs a good clean then. I'm running 35 year old Shimano brakes that still work fine - just a case of regular cleaning and some lube. I've always centred mine, including dual pivots, by using a cone spanner, rather than the adjuster screw. It's more reliable.
cyberknight
As long as I breathe, I attack.
- Location
- Land of confusion
im on about the lever that opens the brake to allow the wheel out, the calipers are super clean and lubed but the lever doesnt do anything at all .
fossyant
Ride It Like You Stole It!
- Location
- South Manchester
Probably gunked up (dirt in the cam). Worth a strip down of the calliper lever.
Roadrat77
Active Member
- Location
- Birmingham
There is a small screw on the right of the brake assembly at the top that will allow you to make incremental adjustments to the pad centering in relation to the rim (keep in mind it moves BOTH pads in the same direction so one will towards the rim and the other further away). I do find that loosening the main bolt to reposition the whole assembly almost inevitably moves the whole assembly to the direction of tighten when you fully tighten it. I tend to make an allowance for it when positioning it and then make the final adjustment with the screw I mentioned earlier.
Ming the Merciless
There is no mercy
- Location
- Inside my skull
This, when new pads are fitted they are thicker, and you need to turn the bit highlighted in red clockwise to increase gap from new pads to rim.
bikingdad90
Guru
The metal spring that operates the arms might just need bending a bit so that it takes up the slack and actually operates both arms and not just one.
UPDATE: Problem sorted.
This hex bolt (circled blue) was way too tight. I slackened it off a tad and now brake operates as it should.
Cheers all.
p.s. the replacement brake shoes are Shimano-branded and a lot more responsive than the BBB ones I had before.
This hex bolt (circled blue) was way too tight. I slackened it off a tad and now brake operates as it should.
Cheers all.
p.s. the replacement brake shoes are Shimano-branded and a lot more responsive than the BBB ones I had before.
Ajax Bay
Guru
- Location
- East Devon
Consider if you might remove the circled bolt and apply some threadlocker before tightening back up (but not too tight).
