Thought the BB was bad; was the chain
08-23-12 | 05:42 PM
#1
Thread Starter
Member
Joined: Aug 2012
Posts: 25
Likes: 0
From: ME
Thought the BB was bad; was the chain
Just a couple weeks out using my new bike (sig) it developed a fine grinding sound like bad bearings emanating from the BB. Quite noticeable and annoying on a quiet ride. Today on a whim I sprayed the chain with WD-40 which completely eliminated the noise. I couldn't believe it. I'm not sure how the chain got dry in such a short period, but sure am happy it wasn't the BB. Odd, as when I first got it the cassette and chain seemed awfully heavy with lube. So just a tip for what it's worth.
Oops, wrong forum. Sorry...
Oops, wrong forum. Sorry...
Last edited by I Bike; 08-23-12 at 06:29 PM.
08-23-12 | 05:55 PM
#3
Senior Member
Joined: Apr 2009
Posts: 39,897
Likes: 3,865
From: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
__________________
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
08-24-12 | 04:19 PM
#4
Ride, Wrench, Swap, Race
Joined: Jan 2010
Posts: 9,826
Likes: 1,805
From: Northern California
Bikes: Cheltenham-Pedersen racer, Boulder F/S Paris-Roubaix, Varsity racer, '52 Christophe, '62 Continental, '92 Merckx, '75 Limongi, '76 Presto, '72 Gitane SC, '71 Schwinn SS, etc.
I suspect it was the chain's rollers, which, while they don't really squeek, tend to rattle from the vibratiions of the tooth engagements at either end of the tensed upper run of the chain. It really can make an odd, if subtle, racket, which is instantly cured by even the lightest of lubes.
Don't expect the WD40 to damp out the roller's vibrations for long though, that's a job for a slightly more-substantial lubricant.
With luck, the WD40 might actually re-hydrate and re-distribute some of any dried lube within the chain, but I wouldn't count on it and would measure the chain for it's "elongation wear" at this time.
Don't expect the WD40 to damp out the roller's vibrations for long though, that's a job for a slightly more-substantial lubricant.
With luck, the WD40 might actually re-hydrate and re-distribute some of any dried lube within the chain, but I wouldn't count on it and would measure the chain for it's "elongation wear" at this time.
