SuzukiSavage.com - "Metallic" noise

Blvd1960

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"Metallic" noise
11/14/11 at 11:39:47

I have a 2008 S40 w/7900 miles; last week after an 80 mile highway ride I noticed a new noise coming from the back when riding at low speed (25 to 35 mph) when shifting on second or third shift.
I checked both front and back drive belt pulleys and neither are loose, also checked belt covers, muffler supports, etc. and could'nt find anything loose or rubbing when moving.
I have the stock muffler and think maybe something inside the muffler is creating that noise, but I think there are too few miles on it to start corroding inside.
It sounds kind of like thin metal pieces vibrating or scratching.
Have you had experience on how long stock muffler could last? or with this kind of noise at low speeds?
Thank you!

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2008 S40 stock

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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28884 L.A. California Gender:	Re: "Metallic" noise Reply #1 - 11/14/11 at 11:55:49 If you can't find anything check your cam chain.
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Blvd1960 YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 25 SE CA Desert Gender:	Re: "Metallic" noise Reply #2 - 11/14/11 at 12:16:11 OK, I checked the noise video on youtube and chain knocking is different from what I get. Anyway I will check on my camchain to rule it out. Thanks, V1!
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28644 Tucson Az Gender:	Re: "Metallic" noise Reply #3 - 11/14/11 at 12:59:05 The big question,... running or rolling?... running, check camchain.. ... only when rolling, look for somethin' loose...
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RidgeRunner13 Serious Thumper Offline haulin' the groceries! Posts: 649 Mustang Island, Texas Gender:	Re: "Metallic" noise Reply #4 - 11/14/11 at 13:01:52 Check to see if there is clearance between the front of your belt cover & the front drive pulley cover. There is supposed to be a little pad between them & on mine when it fell out it would vibrate at certain rpms & sound like it was about to come apart.
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drums1

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Re: "Metallic" noise
Reply #5 - 11/14/11 at 13:04:18

I had some metalic noise in the rear at one time---the licence plate +/or holder was vibrating and rattling. I also had a rattle where I had to shove some rubber gas line pieces in between rear fender and those chrome side covers. Also, the reflector piece inside the rear blinkers was rattling. I took off amber lens and had to bend the tabs where the screws go through to tighten them up again. Sometimes it's a matter of search and destroy. Good luck.

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Blvd1960 YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 25 SE CA Desert Gender:	Re: "Metallic" noise Reply #6 - 11/14/11 at 17:23:53 The noise happens only when accelerating on 2nd or 3rd shift; when I apply clutch the noise stops. When I took apart the front drive pulley cover I did'nt see any padding. Anyway I'm going to check all your tips. Thanks for your help!
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28884 L.A. California Gender:	Re: "Metallic" noise Reply #7 - 11/14/11 at 17:48:29 Re-torque the drive nut don't just check to see if it's tight.
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Oldfeller--FSO

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Re: "Metallic" noise
Reply #8 - 11/14/11 at 20:00:52

You can chase the thing when it is small and vague until you frustrate yourself to death ....

Or, you can simply ride the bike until the noise gets a little louder and the source becomes apparent.

The noise does not seem to have much chance of being a serious item, so simply ride it and keep an eye on the pieces that have been mentioned.

read this for muffler noises -- there are a few we call "the atomic cricket"
(the only sort of cricket that can live inside a hot muffler).

http://suzukisavage.com/cgi-bin/YaBB.pl?num=1309142296

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Routy

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Re: "Metallic" noise
Reply #9 - 11/14/11 at 22:41:00

Quote:
It sounds kind of like thin metal pieces ( cut ) or scratching.
-------------------------------------------------------------------
I have what could be a similar noise coming from the rear,.... not loud, nor does it concern me much.
It quit for a while after I replaced the rear tire, but slowly came back. It resembles belt noise, and even tho belt is tracking perfectly, I still think it is.

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Rich
'07 S40 Blvd stocker, except drilled OEM exhaust and white spacer mod...1/2 (.055)

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: "Metallic" noise Reply #10 - 11/15/11 at 03:37:19 Wipe some canning wax on the belt.
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Routy Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 2280 Winston Oregon Gender:	Re: "Metallic" noise Reply #11 - 11/15/11 at 04:57:21 Any way to do that while it making the noise ??....because thats the only time I can remember to try something that
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: "Metallic" noise Reply #12 - 11/15/11 at 07:17:00 Go get a pencil & some paper, make a note to get canning wax, its at the gro. store, Stick the note in your helmet. Next time you go for a ride, go to the store..
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Routy Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 2280 Winston Oregon Gender:	Re: "Metallic" noise Reply #13 - 11/15/11 at 07:43:14 I'll give that a try,......or put it on wife's grocery list. Mite be a while tho,....kinda cold at 40-50, and I'm becoming a real woosie to the cold.
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arteacher Serious Thumper Offline Ride as if your naked and invisable! Posts: 2581 London ontario Gender:	Re: "Metallic" noise Reply #14 - 11/15/11 at 07:50:04 I wonder if bee's wax would work?
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