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Possible sign of timing chain failure inbound ?
Posted: Sat Oct 08, 2022 8:29 am
by Limey
I started noticing a slight rattle sounds like like loose marbles when I was driving about a week ago. Sound appears to be coming from the timing chain cover area primarily on driver side. I can also hear it around the driver side wheel well area. I made a video. Will it fail or get louder before failing ? 2009 4liter 119k miles.
https://youtu.be/tYYPnIu0mlQ
Re: Possible sign of timing chain failure inbound ?
Posted: Sat Oct 08, 2022 8:57 am
by VStar650CL
It's possible that's a chain, but that isn't a typical noise. Usually they make a "heavy metal bumblebee" sound that changes with RPM. That sounds more like a bad tensioner or idler, or possibly a fan or AC clutch. I'd put a stethoscope on it.
Re: Possible sign of timing chain failure inbound ?
Posted: Sat Oct 08, 2022 10:02 am
by Limey
VStar650CL wrote: ↑Sat Oct 08, 2022 8:57 am
It's possible that's a chain, but that isn't a typical noise. Usually they make a "heavy metal bumblebee" sound that changes with RPM. That sounds more like a bad tensioner or idler, or possibly a fan or AC clutch. I'd put a stethoscope on it.
I don’t have a stethoscope, but will have my mechanic look into it. I used a piece of wood and the sound appeared my prominent on the driver side chain cover area. With AC all turned off.
Re: Possible sign of timing chain failure inbound ?
Posted: Sun Oct 09, 2022 1:03 pm
by TooMuchControl
Fuel injectors make clicking noises similar as well.
I keep thinking something is "more" wrong when I listen in on that side of the engine bay.
I think it's mainly due to the air intake, that covers the other side of the engine bay.
Hope it's something non exploratory.