 Tin Can Rattle
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Joined: Jan 2005
Posts: 18,825
"Lighten up, Francis."
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OP
"Lighten up, Francis."
Joined: Jan 2005
Posts: 18,825 |
So I've noticed lately that when I accelerate there's a weird sound coming from the valve train. I know (think?) loose valves are more of a clicking sound. This is definitely "tinny." It runs fine otherwise. At first I thought it might be one of the cam tension springs after seeing these videos, but it only seems to happen when I accelerate, not at idle, and it's definitely more of a ting than a click. I'm also pretty sure it's not detonation, not a ping. Ideas? I can try and take my own video but that might prove difficult.
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Re: Tin Can Rattle
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Joined: Feb 2007
Posts: 23,134 Likes: 52
Fe Butt
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Fe Butt
Joined: Feb 2007
Posts: 23,134 Likes: 52 |
Only things I can think of in there that might make a tin can sound would be if the oil feed came loose or the cam springs. Maybe if something let go in the tensioner and found it's way up top? Those are my ideas right off. If I think of anything else I'll post it. Maybe if one of the rubbing blocks came off a cam follower? Doubt that one but I guess it's a possibility. In any case I would open up the cover and look.
I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
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Re: Tin Can Rattle
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Joined: Sep 2007
Posts: 1,668
Learned Hand
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Learned Hand
Joined: Sep 2007
Posts: 1,668 |
Could it be an exhaust leak at the head?
Howbeit when He, the Spirit of truth, is come; He will guide you in all truth:
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Re: Tin Can Rattle
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Joined: Apr 2007
Posts: 3,053 Likes: 6
Loquacious
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Loquacious
Joined: Apr 2007
Posts: 3,053 Likes: 6 |
That's a weird one. Apart from what Ian mentioned, what about a loose baffle in an exhaust or an exhaust leak as per mrt202. Is it possible for the noise to telescope back up to the head? Has someone tied a small tin can above your valve cover under your tank as a joke??? 
12 Rocket Roadster
03 Bonneville America
69 BSA Firebird Scrambler
73 Yamaha TX 750
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Re: Tin Can Rattle
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Joined: Feb 2007
Posts: 23,134 Likes: 52
Fe Butt
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Fe Butt
Joined: Feb 2007
Posts: 23,134 Likes: 52 |
If the backlash gear came loose or the spring broke letting the gear just flop around that may make that kind of sound too.
I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
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Re: Tin Can Rattle
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Joined: Jan 2005
Posts: 18,825
"Lighten up, Francis."
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OP
"Lighten up, Francis."
Joined: Jan 2005
Posts: 18,825 |
I guess I'll have to dig into it sometime after my experienced rider course this Saturday.
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Re: Tin Can Rattle
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Joined: Jan 2005
Posts: 2,362
Oil Expert
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Oil Expert
Joined: Jan 2005
Posts: 2,362 |
Err.. you don't have a tin can tied to the back of the bike? No? Jus' checkin... 
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Re: Tin Can Rattle
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Joined: Mar 2009
Posts: 12,964
Stickman Yogi
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Stickman Yogi
Joined: Mar 2009
Posts: 12,964 |
Quote:
I guess I'll have to dig into it sometime after my experienced rider course this Saturday.
Hey good luck with that, meaning I hope you bike hangs in there.
Live to love, love to live.
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Re: Tin Can Rattle
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Joined: Jan 2005
Posts: 184
Adjunct
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Adjunct
Joined: Jan 2005
Posts: 184 |
The double walled exhaust head pipes can have a rattle to them.They can rattle internally on acceleration. This may be what you are hearing, I had this problem a couple years ago.
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Re: Tin Can Rattle
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Joined: Jan 2005
Posts: 18,825
"Lighten up, Francis."
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OP
"Lighten up, Francis."
Joined: Jan 2005
Posts: 18,825 |
What did you do about it? I've eliminated the muffler heat shield from consideration.
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