Thorn Cycles Forum
Community => Rohloff Internal Hub Gears => Topic started by: rafiki on October 21, 2018, 12:46:02 pm
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On my ride this morning a ford was a little deeper than I expected. Once in I kept pedalling to the other side and, in addition to wet feet, I think the Rohloff hub was submerged. It would only have been underwater for 30 seconds or so. Is it likely that water will have found its way into the hub?
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Oh no! I guess that’s impossible to answer other than by saying yes it could. If you are concerned I’d suggest an oil change. If water was inside the oil might look brown and have a smell.
Have you got rid of the other creaks and drivechain issues?
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An oil change then just in case. Thank you.
Drive is OK with the new chain fitted and chainring and rear sprocket both reversed..
Creaking BB still there. I have dismantled and tightened the bearings about 4 times now. Each time there is a little more to tweak up and then it's a bit better but the creak is still there. Next time a little bit more tweak up and it's better still - and repeat. One more try and I'm going to replace the eccentric and bearings if it doesn't go completely. I do wonder if it is something to do with the bearing spacer. Shimano instructions and SJS both say one 2.5 mm spacer on the drive side. I'm not clear why the need for a spacer but I have been following the advice. The eccentric that was fitted to my bike as original and the new one I got from SJS are both the special 73.2mm model where the Shimano instructions show 73.0 with a 2.5mm spacer. However the original on my bike did come with a spacer fitted. I had no creaking with that. Annoying but not critical.
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Perform an oil change as soon as possible to flush out any water.
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Perform an oil change as soon as possible to flush out any water.
I will, Dave. Thank you.
Any thoughts on my BB creak? It's a 2009 Sterling.
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I will, Dave. Thank you.
Any thoughts on my BB creak? It's a 2009 Sterling.
If its external bearing Shimano its probably the bearings. Otherwise it will be the interface between the eccentric and the frame that needs cleaning and greasing.
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I will, Dave. Thank you.
Any thoughts on my BB creak? It's a 2009 Sterling.
If its external bearing Shimano its probably the bearings. Otherwise it will be the interface between the eccentric and the frame that needs cleaning and greasing.
It is an external bearing Dave. Brand new, as is the eccentric. I'll remove the eccentric and re-grease. Thanks for the advice.
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I will, Dave. Thank you.
Any thoughts on my BB creak? It's a 2009 Sterling.
If its external bearing Shimano its probably the bearings. Otherwise it will be the interface between the eccentric and the frame that needs cleaning and greasing.
I stripped it down again, cleaned each part and the frame housing, re-greased everything and reassembled. Just back from a short ride and it's no better and no worse than before. Very frustrating!
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Sorry, can't help. My bottom bracket is square taper, any other thoughts like pedal/shoe interface I already mentioned.
The frustrations I had with bottom bracket area noises was clicking noises instead.
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I stripped it down again, cleaned each part and the frame housing, re-greased everything and reassembled. Just back from a short ride and it's no better and no worse than before. Very frustrating!
So, it's exactly the same as before you stripped and reassembled the whole BB/EBB assembly ??
In that case I would strongly suspect that the noise is NOT being generated from a problem in the bottom bracket area despite the fact that it sounds like it, and what you continue to believe.
I haven't read through everything that you have posted on this issue so I'm guessing that you have looked at pedals/chain ring bolts/stem/seat post/saddle ??
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I stripped it down again, cleaned each part and the frame housing, re-greased everything and reassembled. Just back from a short ride and it's no better and no worse than before. Very frustrating!
So, it's exactly the same as before you stripped and reassembled the whole BB/EBB assembly ??
In that case I would strongly suspect that the noise is NOT being generated from a problem in the bottom bracket area despite the fact that it sounds like it, and what you continue to believe.
I haven't read through everything that you have posted on this issue so I'm guessing that you have looked at pedals/chain ring bolts/stem/seat post/saddle ??
Yes, I am beginning to think that too despite almost being able to SEE the sound coming from the BB! I have checked all the items you mention. However, I am going go over it all again. Today i'm going to remove the pedals and fit an alternative pair because if it isn't the BB the sound is still very cadence linked, left and right. The saddle is quite new so I'll have a look at that too. The seatpost is still stuck solid. Chain is new and tension is according to spec. Chainring bolts tight and torqued to spec.
Hopefully I'll get the pedals changed and tested today. The rest will have to wait until my return from a trip after the weekend. I appreciate your input. Thank you.
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Outside chance it's your mudflap not being secure. Happened to me.
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There are mudguard rattles on the rough but they check out ok.
Oh, and it is unlikely saddle or stem because it happens whilst I'm pedaling standing up.
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. Oh, and it is unlikely saddle or stem because it happens whilst I'm pedaling standing up.
It could still be the stem even when you are riding stood up.....assuming that you are holding onto the handlebars whilst riding stood up.
If you CAN ride standing up AND not holding onto the handlebars, then you should be in a circus... ;D
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I changed the pedals but no change, the noise is still there. Stood on the pedals and the noise remained. Sat on the saddle, pedaled hard getting the noise and just lightly guided the handlebars and still got the noise. So: if it isn't those things and if it really isn't the BB then the next thing is the chain I suppose. It's new and the chainring and rear sprocket have been reversed. I still have the old chain so the next thing I guess is to reinstall that and see if there is any change. I'm off on a trip tomorrow so it will be next Tue or Wed before I can make the change but I'll report back then. In the meantime if anyone has further suggestions I will be glad to give them a go on my return.
Thanks all for your help and encouragement so far.
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I was most certain that the clicking noise I heard was in the bottom bracket. But when I was off of the bike, holding the bike with one hand on the saddle and one hand on the handlebar with front brake pulled, one foot on the ground, and one foot on the right side pedal, when I alternately pushed down on the pedal with my foot and released the pressure, I could hear the click but it was not coming from the bottom bracket after all. (Sorry for the extremely long sentence.)
The clicking sound was a rear rack bolt at a dropout that was not tight enough. It was pretty tight, but pushing down on the pedal flexes the frame, and that frame flex allowed the bottom of the rack to slip and move due to the bolt that was somewhat tight but not really tight enough.
In my case it was a click, not a squeak. But my point is that when you are on the bike, you really can't tell that well where odd noises are coming from.
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the next thing is the chain I suppose. It's new and the chainring and rear sprocket have been reversed.
Clutching at straws here but I've occasionally had a problem with reversing a chainring and/or sprocket. In theory all should be well but depending how they have worn or if they have developed irregularities on the teeth they might not quite mesh properly with the new chain. What size chain ring have you got, maybe one of us could lend you another ring to test before you have to go to more expense!
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the next thing is the chain I suppose. It's new and the chainring and rear sprocket have been reversed.
Clutching at straws here but I've occasionally had a problem with reversing a chainring and/or sprocket. In theory all should be well but depending how they have worn or if they have developed irregularities on the teeth they might not quite mesh properly with the new chain. What size chain ring have you got, maybe one of us could lend you another ring to test before you have to go to more expense!
The chainring is a 39T but I have had conversations here in the past about raising the gearing as I feel it is about 1 gear too low for my usual terrain. I was advised that a 44T should be my next stop.
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the next thing is the chain I suppose. It's new and the chainring and rear sprocket have been reversed.
Clutching at straws here but I've occasionally had a problem with reversing a chainring and/or sprocket. In theory all should be well but depending how they have worn or if they have developed irregularities on the teeth they might not quite mesh properly with the new chain. What size chain ring have you got, maybe one of us could lend you another ring to test before you have to go to more expense!
Point taken Mike. I shall keep an open mind.
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Fishin' and flailin' a bit here, Brian, but a couple of observations from my own experience. I had a creak on my derailleur bike, audible on both sides on the power stoke. It came from two sources:
- One was from a dry seatpost. Seatpost greased, creak lessened, but didn't disappear.
- Second source was the rear derailleur cable in its bracket beneath the BB. A touch of grease cured that.
I doubt it would be your chain: Early this past summer, I had various rattly/clackety noises from the front of my drive train. It appears that they came from several sources (BB, chain ring, and chain) -- but there was no creak involved.
My two cents' worth -- might be relevant?
Good luck.
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Perform an oil change as soon as possible to flush out any water.
I will, Dave. Thank you.
Any thoughts on my BB creak? It's a 2009 Sterling.
you more than likely need the bb shell faced the outer bearings will sit dead flush stop any creaking.I had th e same problem hope u get that hub sorted.
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Try backing the chain tension off more than you usually would and see if it goes away.
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Try backing the chain tension off more than you usually would and see if it goes away.
I will, Dave. Thank you. I'm away now for a few days but it will be done first thing on my return.
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Thanks again everybody for your advice and encouragement. I thought I'd post an update.
I changed the hub oil. The stuff that came out didn't look contaminated or different in any way from oil from previous changes. However, I am glad I did it, better safe than sorry.
Regarding the annoying creak I was getting, that is also resolved. You might recall I was convinced it was the BB despite changing everything down there. Following Dave's advice I slackened the chain off a bit more than usual but that wasn't the solution. The chain is new and the chainring I had just reversed. However I began to suspect that chainring. I have long wanted to install a larger chainring as I feel the 39T gives me lower gearing than necessary. Advice from members here some months ago suggested a 44T would give me one gear higher range so I thought now would be opportune time to get one. I fitted it today and on a short ride around the village it feels more comfortable. I'll get a better feel on my ride-out tomorrow. However, the wonderful side-effect is that, no matter how hard I try, I can't reproduce that creaking noise any more. So I guess the new chain on a reversed but worn chainring was the culprit. What a relief! Thanks again everybody.
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Great news! Really pleased you’ve got this sorted, nothing more irritating than a creak on an otherwise silent bike.
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I have never heard of a chainring causing a creaking noise. But I suppose if the bolts are a bit loose, the ring could slip and rub on the crank spider as you pedal.
You may have invented a totally new cause of and solution for crank area noises. Congratulations.
Around town I use a 44T chain ring and 16T sprocket. The lowest gear is low enough for an unladen bike on the steepest hill in my neighborhood and the high gear is nice to have on a couple different shallow downhills. But for touring, I take a few links out and put the small ring back on the bike.
When I put on a different chainring, I always backpedal the crank several times to see if the chain has a uniform amount of slack for the entire crank revolution. Sometimes the chainring is not quite concentric with the crank, and then I loosen the chainring bolts a bit and try to shift the ring position a bit on the spider and retighten the bolts to try it again. And when I have a reasonably consistent amount of slack, then I finish tightening the bolts.
Thanks for the update.
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You may have invented a totally new cause of and solution for crank area noises. Congratulations
Hehehe! Thank you. I suppose it was more of a crackling. ;)
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Around town I use a 44T chain ring and 16T sprocket. The lowest gear is low enough for an unladen bike on the steepest hill in my neighborhood and the high gear is nice to have on a couple different shallow downhills. But for touring, I take a few links out and put the small ring back on the bike.
When I put on a different chainring, I always backpedal the crank several times to see if the chain has a uniform amount of slack for the entire crank revolution. Sometimes the chainring is not quite concentric with the crank, and then I loosen the chainring bolts a bit and try to shift the ring position a bit on the spider and retighten the bolts to try it again. And when I have a reasonably consistent amount of slack, then I finish tightening the bolts.
Thanks for the tip. I'll check that in the morning.