Normal wear for a rear sprocket?
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Normal wear for a rear sprocket? - 5/15/2008 4:14:54 PM
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My_Bob
Posts: 6
Joined: 5/15/2008
Status: offline
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Hello, my first post here.
This is my first Harley, so I'm still getting used to it. Don't know what is normal, and what is not. Things I think aren't normal my dealership says are normal on Harley's. So...
I have an '07 FXDB with about 4k miles on it now. Was looking it over today, and noticed some wear on the rear sprocket. In my opinion it doesn't look good, but I don't know if this is normal, because this is my first belt drive bike. I haven't taken it down any dirt or gravel roads, haven't been caught out in the rain yet, and the belt tension doesn't look too tight, or too loose.
There is a lot of pitting in the sprocket as you can see. There is more pitting on one side of the sprocket than the other. The belt doesn't look bad, and has very little pitting. Is this normal, or something I should have checked out?
Thanks.
Note: Looking at the picture just now, I noticed that you can see the same wear pattern going around the sprocket on some deep pits.
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RE: Normal wear for a rear sprocket? - 5/15/2008 4:25:25 PM
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rbabos
Posts: 1485
Joined: 3/16/2007
From: Woodstock, Ont , Can
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That , to me is not normal. I have 6 k on my bike and that area still looks new except for some black smearing that will wipe off. Looks more like corrosion than wear. Rode hard and put away wet.
Ron
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RE: Normal wear for a rear sprocket? - 5/15/2008 4:33:08 PM
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My_Bob
Posts: 6
Joined: 5/15/2008
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It's definitely not corrosion, It's almost 1 year old, sits in the garage, and has only gets wet when I wash it. Looks like pitting from sand, or small rocks to me (but I don't ride on sandy roads...that I know of). I ride it like i own it, not like I stole it. I have another bike for that. I bought it new, and it has never seen full throttle, and hasn't been anywhere near redline.
Last time I actually looked at it, it looked just like you described yours. A little black greasy stuff on it that wiped off.
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RE: Normal wear for a rear sprocket? - 5/15/2008 5:00:29 PM
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My_Bob
Posts: 6
Joined: 5/15/2008
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I guess it might be crap from the winter season with them sanding the roads, and the roads aren't as clean as I think they are. Only thing I can think of.
When should I start to worry? Is it going to cause a problem the way it is now? Probably not covered under the warranty if I take it in, huh.
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RE: Normal wear for a rear sprocket? - 5/15/2008 5:13:29 PM
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My_Bob
Posts: 6
Joined: 5/15/2008
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Well crap. I hope I'm not putting a rear sprocket on every couple months. The sprocket looked fine 300 miles ago. Would really suck to put another one on just to look at it next month and see the same thing. Oh well, what can you do.
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RE: Normal wear for a rear sprocket? - 5/15/2008 5:43:29 PM
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hounddog
Posts: 388
Joined: 2/13/2007
From: Queen Creek, Az
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sh^t mine looked like that 30k or more ago!!! and i gots 60k total now and things still seem fine too me, put 100mi on a day, 4 days a week and its all good. i live in az and sand flies year round here, gettin a new belt soon but only cuz a rock took a half a lug off ever 7th lug on the belt. is it going to fail sum how??? or cause the belt to snap??? 
_____________________________
Hound-dog out!!! The older we get, the faster we used to be........
05 FXDCI w/ S&S Ac & Custom pipes, Also Dobeck Eng. TFI w/ many other goodies....
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RE: Normal wear for a rear sprocket? - 5/16/2008 5:32:31 AM
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1FLTRI4ME
Posts: 2519
Joined: 4/10/2006
From: Hollister,California.
Status: offline
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I would take the bike to a different dealer and see what they say.Have the dealer(s) document the problem.
On the other hand ,your bike still has a warranty right?Keep the belt tension adjusted to spec and just ride it.If the pulley/belt is FUBAR towards the end of warrany,take it in.
Hopefully this issue wont be a "wear item".
_____________________________
2006 Road Glide,Chopper Blue,SE slip ons,K&N,SERT,color matched lowers.
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RE: Normal wear for a rear sprocket? - 5/16/2008 5:44:41 AM
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chacon101
Posts: 22
Joined: 5/15/2008
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I am no expert on this but just from your pics, it would seem as though the sprocket isn't lined up with the belt 100%. If you were standing behind the bike facing the front wheel, that rear sprocket would be off kilter. Now, the amount that it's off could be so small you would never ever notice it but it just makes sense to me that if one side of the sprocket is getting worn more than the other, it's an alignment problem. Kinda like what you would see on a tire.
As for the pitting, I have no idea. I have 21k on my bike and haven't checked. Now I have something to do tonight :)
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RE: Normal wear for a rear sprocket? - 5/16/2008 5:54:34 AM
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Hounds2
Posts: 116
Joined: 9/22/2005
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mine looked just like that after 5000 miles, got about 14000 on it now and it looks the same. i have cleaned my belt periodically since new. i am not worrying about it.
scott
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RE: Normal wear for a rear sprocket? - 5/16/2008 1:05:09 PM
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Oilslick
Posts: 330
Joined: 3/4/2006
From: Warwickshire, UK.
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+1. Mine looked bad from early on. Like it had been pulled up from the bottom of the sea. It is no worse now 9000 miles on.
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FXDBI 88", 8ยบ injectors, Chubby 504's, Deuce wheel, 2" tank lift, EG air shocks
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RE: Normal wear for a rear sprocket? - 5/16/2008 4:10:16 PM
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My_Bob
Posts: 6
Joined: 5/15/2008
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quote:
ORIGINAL: chacon101
I am no expert on this but just from your pics, it would seem as though the sprocket isn't lined up with the belt 100%. If you were standing behind the bike facing the front wheel, that rear sprocket would be off kilter. Now, the amount that it's off could be so small you would never ever notice it but it just makes sense to me that if one side of the sprocket is getting worn more than the other, it's an alignment problem. Kinda like what you would see on a tire.
As for the pitting, I have no idea. I have 21k on my bike and haven't checked. Now I have something to do tonight :)
That was my first thought too, but i checked and it's as straight as can be. I think the wear on the outside of the sprocket is from the way the debris must be hitting it, and getting caught in the belt. It has to be flying up from the front tire, and maybe the inside edge of the sprocket is acting as a shield for that side. At least that's the only thing I could come up with.
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RE: Normal wear for a rear sprocket? - 5/17/2008 6:39:53 AM
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03 Fatboy
Posts: 28
Joined: 6/3/2007
Status: offline
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Take a look at the spockets on other bikes bike to see how they compare. My Fatbot has 45000 miles and doesn't look like this.
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