Front derailleur problem & Deore M595 adapter?

Craig321

Hi

Just been installing my front derailleur, however when the adjustment screws are turned the dearilleur cage doesn't move at all making it near on impossible to get them working properly. Currently I haven't attached the gear cable, so that's not the problem.

Also, does anyone know where I can buy the Deore M595 IS mount adapter?

[Edit]
Found the adapters, just need to find the right size now

Thanks
Craig.

nicklouse

yes the stops dont move the mech except maybe the bottom one if you have removed the spacer. so screw it in until it is set for the granny ring. then fit and tension the cable and then set the top stop position.

Craig321

nicklouse wrote:

yes the stops dont move the mech except maybe the bottom one if you have removed the spacer. so screw it in until it is set for the granny ring. then fit and tension the cable and then set the top stop position.

Just had another go and the adjustment screws are just very stiff. Managed to get it all lined up with the chain on the largest cog and the smallest chainring and it shifts perfectly up onto the second chainring. Can clearly see the cage moving when I turn the low limit screw, so at least I'm not stuck anymore on that part

However, when it's on the second chainring the gear cable seems very tight and when I try to go to the largest chainring the front derailleur just kind of squashes the chain rather than making it jump.

Not sure what I've done wrong, I have done everything up according to parktool/Shimano guides.

Might I need to adjust the high limit screw a little more?

dogboy73

Sounds a lot like the problems I was having when fitting my derailluer (the first one I've ever fitted & set-up!). You might want to read through the thread to pick up some tips. I learnt one or two things about those limit screws & why they didn't seem to be doing much;
http://www.bikeradar.com/forums/viewtop ... t=12699956

Craig321

Thanks for the link

Not having any problems with the adjustment of the thing now, but now when I shift from the smallest chainring to the second one the gear cable becomes too tight and I can't shift again.

Have adjusted the tension screw on the shifter and have checked tension multiple times but it's still too tight

Craig321

Ah, was to do with the tension screws after all. The H tension screw was too tight causing everything to become too tight.

Now problems with some noise! Might just be normal, but definitely is louder than normal

dogboy73

Craig321 wrote:

Ah, was to do with the tension screws after all. The H tension screw was too tight causing everything to become too tight.

Did you have it to tight so the derailluer would'nt move over enough?

Now problems with some noise! Might just be normal, but definitely is louder than normal

Is the noise coming from the front or rear? I think I'm okay at the front except for extreme gear settings that are not practical in use anyway i.e. smallest chainring front, smallest sprocket. I thought I had a bit of noise coming from the sprockets. It might need a bit of tweaking .......... or it might just be me being paranoid about any kind of noise on my rebuild :?

Craig321

dogboy73 wrote:

Craig321 wrote:

Ah, was to do with the tension screws after all. The H tension screw was too tight causing everything to become too tight.

Did you have it to tight so the derailluer would'nt move over enough?

Now problems with some noise! Might just be normal, but definitely is louder than normal

Is the noise coming from the front or rear? I think I'm okay at the front except for extreme gear settings that are not practical in use anyway i.e. smallest chainring front, smallest sprocket. I thought I had a bit of noise coming from the sprockets. It might need a bit of tweaking .......... or it might just be me being paranoid about any kind of noise on my rebuild :?

Yes, I think it was too tight so the dearilleur wouldn't move over enough causing the cable tension to be too high which made it so I couldn't shift up again.

The noise is coming from the rear - I have triple checked clearance between the front derailleur cage and the chain and it's perfect, no touching there.

One thing I did notice though is when looking from the front of the bike the chain doesn't go exactly straight to the cassette so my best guess it's rubbing as it's coming off the rear cassette causing the noise.

I'm unsure what I'd need to do to adjust this though - the chain is currently on the largest rear cassette and smallest chainring and the noise seems to be loudest at this point.

I have played around with the b-tension screw and that's fine (I thought the pully could be rubbing). I have also played around with tensions but none of it makes any difference.

Also, when on the smallest chainring and smallest sprocket the chain rubs against the bottom of the cage. I'm guessing this is because the rear derailleur is too high, even though I attached it according to manufacturers specifications/various guides :?

inthemicz

I would suggest popping into your LBS and asking for them to tweak it.

It will only cost a few quid and you may be able to get the mechanic to show you what it is.

It could be the rear mech slightly out of allignment.

You mention the noise being loudest large rear and small front. the chain line should be relativly straight at that point.

do you get a similar noise at large front and small rear?

Craig321

inthemicz wrote:

I would suggest popping into your LBS and asking for them to tweak it.

It will only cost a few quid and you may be able to get the mechanic to show you what it is.

It could be the rear mech slightly out of allignment.

You mention the noise being loudest large rear and small front. the chain line should be relativly straight at that point.

do you get a similar noise at large front and small rear?

Unfortunately my LBS (if you can call it local) isn't really an option. Costs too much to get there just to tweak the gears :S

I'm getting a similar noise on every gear, however it is definitely worst when on the largest sprocket and largest chainring. I have checked from the back of the bike and the chain is desperately out of line. The largest chainring is too far out.

Just double checked my BB spacers and the correct ones are in.

Is there anything else that could be causing this?

[Edit]
Also, when the chain is on the largest sprocket and largest chainring and you pedal backwards it'll hop down two gears.

dogboy73

Sounds almost exactly what's happening with me. I'm convinced I'm getting to much noise even though the shifting is now very smooth. Something doesn't quite seem right.

supersonic

Also, when the chain is on the largest sprocket and largest chainring and you pedal backwards it'll hop down two gears

There is no need to use this gear.

dogboy73

supersonic wrote:

Also, when the chain is on the largest sprocket and largest chainring and you pedal backwards it'll hop down two gears

There is no need to use this gear.

No. Bit of an extreme combo that one

Craig321

supersonic wrote:

Also, when the chain is on the largest sprocket and largest chainring and you pedal backwards it'll hop down two gears

There is no need to use this gear.

Maybe so, but surely every gear should work properly without a nasty noise? I have used other bikes with the same amount of gears and none of their gears make noise anywhere close to mine.

I've never used a bike where you can't use a gear, or where a particular gear makes a nasty noise.

Also, when on the smallest chainring and smallest sprocket the chain hits the bottom of the front derailleur cage and I can't see any way of stopping it as if I put the dearilleur any lower stuff would just stop working properly.

supersonic

No, not at all. And same for the small/small combo. While these gears are physically possible, all sources say to avoid. You can get exactly the same ratio in the middle chainring, a straighter chain line because of it and less wear.

There is no reason at all to use those combinations.

ALso see FAQ.

Craig321

I assume this thread is the one you're referring me to?: http://www.bikeradar.com/forum/viewtopic.php?t=12647117

I'm not saying you're wrong, however I've personally never heard of a bicycle where you can't use certain gear combinations, or where certain gear combinations rub on the front derailleur :?

Let's say I didn't use the gears you're not supposed to, I still have the issue of noise. There is a noise in every gear which is basically the noise I get when in large/large, just a bit quieter.

Is this just down to how new the bicycle is (it has never been ridden), or is there anything that can be adjusted?

Thanks
Craig.

nicklouse

yes you can use them but cogs and chains and mechs WILL rubs.

it is the way things are.

supersonic

You need to fine tune the adjustment. Very slight rub is acceptable in some combos.

But even the manufacturers of the gearsets say not to use those combos. You can't get rid of them as you'd get rid of ones that do work fine though.

Craig321

Thanks for clearing this up for me guys. All of you have been much help throughout this build . Much appreciated.

Just waiting for my post to IS converters and then I'm good to go

I'll see if fine tuning them helps with the rub on small/small but I'm not sure it'll help too much as I wouldn't really call the rubbing slight. Adjusting the front derailleur down a couple of mm should be fine though.

Just had a read of your gear thread as well. I've only ever owned bicycles with 8-9 or even 1 gear so it'll take some getting used to.

All acceptable gear combinations are working near on perfect on the bike now, just need some slight adjustment on the screws and tensions to perfect things.

Craig.

Craig321

Oh and I just remembered what the weather is like in UK at the moment...

Yay to getting my bike all crapped up on its first ride :P

dogboy73

Craig321 wrote:

Yay to getting my bike all crapped up on its first ride :P

Looking at my almost complete build, in the workstand, next to me right now in the dining room, looking very new & sparkling clean, I'm thinking exactly the same thing Before my first ride I'm going to take a shed load of pictures from all angles & make a Flickr page so I can remember it always, clean.