worn cams - BMW S1000RR Forums: BMW Sportbike Forum
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post #1 of 8 (permalink) Old 10-09-2019, 02:43 PM Thread Starter
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worn cams

Hi everyone, I need your help on this one! My brother has a 2010 standard ( no abs and tc) that is starting to develop a more noisy sound from the engine. It has done about 22000 Km. and I have installed the silver plug a while ago. I think it is the cam chain but now I am thinking about worn cams too. How many of you have changed the cams due to failure, and at what mileage. I know there was something going with the cams not hardened enough on the early years. It doesn’t sound too bad yet, but worse than my 2012 with 47000 Kms.
The bike runs strong like a bat out of hell, so there is nothing that slows it down.
Could it be the cams or just the chain or cam train?
I have asked this question on another forum, but I know there is also many competent people on this forum too.
Thanks in advance!
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post #2 of 8 (permalink) Old 10-09-2019, 06:29 PM
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So we are your second choice after Facebook? Hmmmm, some of the members here might take offence at that.
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post #3 of 8 (permalink) Old 10-09-2019, 07:07 PM
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I actually take offense to you thinking I would take offense to his question being posted on more than one forum...and you are a moderator?
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post #4 of 8 (permalink) Old 10-09-2019, 09:28 PM
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I take offence be beause its something to be offended about
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post #5 of 8 (permalink) Old 10-09-2019, 11:08 PM
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Really, a video with good quality sound of the symptoms would be best if you want more accurate responses. A "noisy sound" plus your best guesses as to what they might be aren't the best descriptors to get helpful internet guesstimates of the issue.

Check your oil level, then try a cold start clip, a clip at operating temp and a startup clip at operating temp with a good microphone in the area where the noise of concern is the loudest or clearest.
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post #6 of 8 (permalink) Old 10-10-2019, 05:34 AM
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I don't think it would be cams on a 2010 model. More likely a failed tensioner or stretched chain.
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post #7 of 8 (permalink) Old 10-10-2019, 04:33 PM Thread Starter
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Hi
Thank you for the answers.
How did you guys know it was on facebook? Are you looking at that too? No offence here!
Well damn! I knew I shouldn't have wrote that!
jokes aside!
I got some answers and some where good, but I was also thinking of at what millage the cams usually give up. I have heard I would be already about 10-12K kms. So if some of you have changed the cams please chime in.
And Bennymx, I have thought giving it a new chain but can only find the OEM kit (part # 11008536327). So it looks that you have to change the chain, guides and sprockets at a time (and needing the tool for holding the camshafts into place).
Also have looked into the manual cam chain tensioner from CA motor werks maybe Alpha racing. Have any of you experience with them?
I have seen so many video clips on youtube trying to capture the sound of the camchain and I fear mine would be just one in the pile
Thanks
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post #8 of 8 (permalink) Old 10-11-2019, 10:37 AM
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Not knowing anything specific about these bikes other than that they're generally fairly reliable, it seems unlikely that the cams themselves are worn out at 22000km/14000mi.

Loose valves can make noise, but in general valves tighten up rather than loosening.

A loose cam chain - either due to stretch or due to a failed tensioner - is my guess.
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