Frozen front mech

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NATURAL ANKLING
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Joined: 24 Oct 2012, 10:43pm
Location: English Riviera

Re: Frozen front mech

Postby NATURAL ANKLING » 31 Aug 2016, 9:19am

Hi,
hamster wrote:I had the same symptoms years ago on a Shimano mech of similar quality (300LX MTB). Essentially it seemed to corrode inside one of the pivot shafts and this rusted it solid.

Might be where you live, I tend to apply one drop to each of eight pivots on both derailleurs periodically, otherwise its only standing bikes in garden from new that suffer this.
Eye dropper filled with gear oil is best applicator.
NA Thinks Just End 2 End Return + Bivvy
You'll Still Find Me At The Top Of A Hill
Please forgive the poor Grammar I blame it on my mobile and phat thinkers.

Binkyboy
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Joined: 29 Oct 2010, 5:05pm

Re: Frozen front mech

Postby Binkyboy » 2 Sep 2016, 10:53am

Bit late I know, but check the return spring isn't broken/cracked/unseated.

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Gattonero
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Re: Frozen front mech

Postby Gattonero » 2 Sep 2016, 10:58am

Binkyboy wrote:Bit late I know, but check the return spring isn't broken/cracked/unseated.


The return pring on a FD is quite strong, unlikely will break or corrode to the point of freeze the part.
Going off its seating points is unlikely too, but that can be sorted by using a suitable leverage, like a barrel adjuster, or a long M5 bolt drilled ø2.5mm inside.

To lube the recessed areas, I have a small flask of Finish Line Wet (the green one) with an extension straw made from a used Bic pen inner 8)
It is by riding a bicycle that you learn the contours of a country best,
since you have to sweat up the hills and coast down them.
Thus you remember them as they actually are...

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Hackfall
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Re: Frozen front mech

Postby Hackfall » 2 Sep 2016, 10:59am

Sora replacement arriving today. Still left the old one soaking. No movement at all. Its deeed i tell you

I'm a trendy consumer. Just look at my SM-A300FU using hovercraft full of eels.

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NATURAL ANKLING
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Joined: 24 Oct 2012, 10:43pm
Location: English Riviera

Re: Frozen front mech

Postby NATURAL ANKLING » 2 Sep 2016, 11:08am

Hi,
Never say never :P
NA Thinks Just End 2 End Return + Bivvy
You'll Still Find Me At The Top Of A Hill
Please forgive the poor Grammar I blame it on my mobile and phat thinkers.

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Hackfall
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Joined: 17 Sep 2013, 12:08pm

Re: Frozen front mech

Postby Hackfall » 16 Sep 2016, 5:52pm

By way of an update. The old mech never could be freed. Now have fitted a band on sora 9 speed mech. Works fine with my veloce 9 speed levers and shimano 9 speed rear gearing. I need to tweak the High setting as its going too far and if i am not careful will take the chain off. Just a tweak tonight i hope if i get time. Century ride in the dales tomorrow nice to have my old steelie usable for it.

I'm a trendy consumer. Just look at my SM-A300FU using hovercraft full of eels.