Bikeguide.org - Bike maintenance for BMX'ers
The Street => The Bike Shop => Topic started by: Cmb4130 on May 22, 2016, 03:24:17 PM
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Anyone know how to make this stop?
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can you describe it more? is it one single click everytime you stop pedalling (and the wheel is rolling)? is it a constant 'ping, ping, ping'?
how long have you ridden the coaster, and when have you last cleaned out the clutch? (i mean the actual engagment mechanism)
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Single click every time I stop pedaling but the wheel is still rolling.
Sounds awful.
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that suggests the noise comes from something disengaging. if the clutch mechanism is 'sticky' this may happen, which just requires a cleaning
however, more things happen when you stop pedalling - chain loses the tension from your weight, rear cog no longer 'pulling' the hub to spin the wheel, etc. these can all make a noise potentially.
if you take off your chain and turn the rear cog by hand, can you replicate the noise? did any of your mates put a tiny steel ball bearing in your frame just to fuck with you? how worn is the sprocket/chain/rear cog? there're many things possible, need some narrowing down to the hub.
what does the noise sound like? a ping? a twang? click? is there a crack on the hub body?
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Freecoaster is new
Chain is new
Sprocket is brand new
The sound is coming from inside he hub.
I know spraying WD-40 inside the hub will destroy it. But is there an actual lubricant I can spray into the slack adjusting hole to grease the hell out of the hub to get the clutch to stop sticking?
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Tubes of grease are actually like tubes of toothpaste... if you press pretty hard then a bunch will shoot out at once. Try that.
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Ive had similar noises from one of my many KHE-style coasters where it made a loud noise when disengaging.
Think it had to do with the clutch having sharp edges. Didnt damage the hub, just made a loud noise.
If it is too annoying I think you can very sligthly file off the top micro-meter of where the clutch engage the hub. I would assume that this could change how evenly the clutch catches the hub Shell though, rendering this a stupid idea.
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Freecoaster is new
Chain is new
Sprocket is brand new
stuff often comes with way too much grease in it. have you taken the hub apart at all? seen the youtubes of how to do it? ediot should know what he's talking about here, regarding the stickyness. Or maybe it's something else, I don't know. I've had the hub for a year now(?) and still haven't built it up, but I know that george has mentioned the grease/lube a few times - that you don't need to add any when you install it because it already has more than necessary...
ediot, please post the yellow Standard. I never get sick of seeing that bike
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Clutch pop is common and should disappear overtime as it breaks in
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Clutch pop is common and should disappear overtime as it breaks in
This is what I'm thinking. Break that thing in.
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Clutch pop is common and should disappear overtime as it breaks in
This is what I'm thinking. Break that thing in.
Yep
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Mine did that too.
I took it apart and packed it full of Park grease. It stopped doing it.
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Mine did this when i first got it, it stopped. About 6 months later started doing it again and worse. Now my hub locks up after a hard pedal. Is there a fix for this?
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My buddy (who's a 8 year long coaster guy) Clutch was doing this as well, shortly after the Helical slack adjuster blew up into tiny pieces. He's back on his Federal coaster.
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My buddy (who's a 8 year long coaster guy) Clutch was doing this as well, shortly after the Helical slack adjuster blew up into tiny pieces. He's back on his Federal coaster.
Cool story hansel.
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This reminds me of a time nearly 15 years ago when I lived on the eastern coast of Australia in a little town call Coffs Harbour. It's a beautiful little beach town where you can get KFC and sit on a grassy outcropping and watch the dolphins swim in the ocean. A girl I knew there worked at a little fish and chips shop--sometimes she would hook me up with a greasy bag of chips for free. The mountains in that region are close to the ocean and as a result there is a sub-tropical rainforest there, just a few miles drive from Coffs. Myself and a couple of friends drove out to see it one Wednesday simply because we'd never seen anything like it--we were all from the intermountain west which is pretty much just desert and high mountain desert. In the mountains of Idaho, you need to worry about things like bears and mosquitos and the occasional mountain lion. In the subtropical rainforest, I didn't know what to worry about or watch for simply because I didn't know and I couldn't see past all the green. There is so much green there! My friends and I decided to venture off the trail like a pack of idiots so we could discover the secrets of the forest for ourselves. I don't recommend this unless you enjoy walking though mysterious wet slimy things, enormous spiders, and falling on your ass a lot. One of the girls with us screamed and pointed--I looked back frantically to see what she was on about and realized she was pointing at the ground near my feet. Actually, she was pointing at my feet! Blood! My left athletic sock was crimson red and it simply wasn't registering with me. It was my blood. It was my blood. I panicked and tripped over myself getting back to the main trail so I could assess what was wrong. Between my wet shoes and my courage stood that sock. I knew what I was going to find. There was a spider in there. A funnelweb. I knew it was a funnelweb. Or a redback. I knew it. Cautiously, I slid my shoe off and inspected. Nothing. A twig and some debris, but no spider. I had to examine my sock. I didn't want to, but I knew I had to. through the slick red blood, I noticed something unusual about the shape of my ankle--a bump where there should be no bump. My heart pumped faster and my breath drew short as I rolled down the bloody rag to reveal a mass of black and red slime. Repulsed, I looked away. Had I smashed the spider in my fury? In my rage to escaped the unknown dark forest had I sunk the fangs deeper into my own flesh?
Stephanie drew her courage and came to my aide. She pulled the bloodied sock off and found the intruder. A leech the size of my thumb was still attached, though smashed against my leg.
I haven't been to the rainforest since, though I'd love to get some fish and chips and watch the dolphins.
My KHE Astern is still running strong.
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My buddy (who's a 8 year long coaster guy) Clutch was doing this as well, shortly after the Helical slack adjuster blew up into tiny pieces. He's back on his Federal coaster.
When I took mine apart to regrease it one of my slack adjusters was in two pieces
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In my experience (KHE) it's because it's to much grease in it. Causing the clutch to stick while disengaging.
I usaly keep the grease to a minimum in my coaster, and it's been rolling great for 5 years, no problems.
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Perfect hubs except the slack adjuster does suck in them
Already cracked 2 of them
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Cool story hansel.
Thanks for your incite on the topic
Your thoughtful reply is a great contribution to bikeguide [/sarcasm]
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My Clutch hub did the same thing at first, then I took it apart to grease it and removed the little grub screw (for slack adjustment) as I noticed it could potentially hit the inside of the shell if all the way out (I run max slack)
It's been the smoothest feeling hub since
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Why take it apart to grease it when there's a slotted hole that allows you to apply grease into?
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ediot, please post the yellow Standard. I never get sick of seeing that bike
unfortunately i didn't take good care of archiving old photos, a lot of old ones are lost. i've just dug threw my old harddisks and found some shit quality pictures at bad angles, but it'd be fun to post them up i guess. i'm starting a new thread for it in the lounge.
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Add grease. The Clutch loves grease, dont be afraid.
Add it through the adjustment hole and it will eventually make it to where it needs to be, just keep working it in there.
If you need to take apart then try these:-
Disassembly: https://www.youtube.com/watch?v=vg1SjjJz9nM
Reassembly: https://www.youtube.com/watch?v=VxnWbSjyexc
Should cover most things.
If something breaks contact warranty.
:)
G.
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^^^
would it be a problem to have grease on the drive engagment surfaces (i.e. the actual clutch)?
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Why take it apart to grease it when there's a slotted hole that allows you to apply grease into?
because I didn't want to wait for it to work it's way into the clutch.
Oh, and because I wanted to play with it.
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What kind of grease should I use? WD 40 ruins sealed bearings, and regular grease is as think as marshmallow. Any recommendations?
Thanks for your help everyone.
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uurrghhhh wd 40 is not grease, only use that stuff for cleaning old grease and gunk out before you add fresh stuff
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What kind of grease should I use? WD 40 ruins sealed bearings, and regular grease is as think as marshmallow. Any recommendations?
Thanks for your help everyone.
I use Park tools grease
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Greased it up and so far it sounds like the harsh clicking noise has stopped.
Thank you.
However, when I greased it, the slack moved all the way back to its original position. I had it tightened up to feel more like a cassette.
Why did it move without loosening it?
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you adjust (tighten) the slack by tightening the grub screw. the first possibility that comes to my mind is that when you put grease in it somehow 'undid' the grubscrew.
if the grubscrew struggles to hold its place and keeps loosening itself, you could always take the hub apart and add spacers to take up the slack instead. it'd reduce some room for adjustment, but you probably know how much slack you want in the hub anyway so that isn't a big deal.
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That adjustable slack washer is the Achilles heel of the hub. My grub screw has gradually worked itself to a setting with more slack and needs the occasional tightening to get it back into position. Also the hole threaded for the grub screw creates a stress point for it to crack around the screw.
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That adjustable slack washer is the Achilles heel of the hub. My grub screw has gradually worked itself to a setting with more slack and needs the occasional tightening to get it back into position. Also the hole threaded for the grub screw creates a stress point for it to crack around the screw.
the self loosening is part of my worry about the hub - in an ideal world the slack adjuster sits perfectly well at its setting and there's no wiggle to work the screw loose etc, but it's always limited to manufacture tolerances i guess. i wonder if you could just pretend that it's metal and secure it with loctite (give it overnight to cure properly!) would work on such materials.
a second ghetto fix would be to add ANOTHER grub screw into the hole, tightening it against the first one (essentially treating them like cones on older generation hubs' conenuts) then cutting/ filing off the protruding excess. then against, putting a few actual spacers on is much less effort than this.
as for stress concentration, that part shouldn't be seeing any stress, since the whole slack adjuster is only something for the clutch mechanism to rest on, at the force of the clutch spring/drag mechanism spring.
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Its metal against plastic without any strong forces on the screw right? Wouldnt just household glue do the trick?
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Its metal against plastic without any strong forces on the screw right? Wouldnt just household glue do the trick?
loctite is classier because bikes
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Update
I greased the wheel and the noise is gone. Butter.
But!
I still can't tighten up the slack. It's a full quarter pedal which is a bit much.
I use a 2.5 mil Allen key and the adjustable nut won't tighten.
Frustrating.
I may have to take it apart to investigate.