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Old 12-10-2011, 12:40 AM   #1
GTR27
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Cam chain tensioner

Hi all. Have noticed I appear to have quite a bit of cam chain noise on my 06 gsxr1k. If you give it a rev, then let off, I get cam chain noise. I gather this means the CCT is prob buggered.

I have ~40K (km) on the bike, and it's been serviced every 5K at latest, using full synth (motul 7100).

I'm not sure I want a manual CCT - i was thinking of another auto CCT. I dont do racing etc, just general road riding.
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Old 12-10-2011, 11:08 AM   #2
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Re: Cam chain tensioner

More than likely your valves are tight. My original CCT had about 90k miles before I changed it to a manual one. And I only did that because they are cheap. I've worked on several of these bikes and have yet to see a bad tensioner.
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Old 12-10-2011, 06:12 PM   #3
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Re: Cam chain tensioner

As in valve clearances?

I would have thought they would make a more "tappety" sort of sound.

The sound i'm getting is like a loose chain on a chain guard kind of sound (hence my assumption of CCT) as in rev and let go and get a "zzzzzzzzzz" kind of sound. Top end isnt tapping or knocking at all.
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Old 12-10-2011, 07:04 PM   #4
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Re: Cam chain tensioner

If you hear a whine sound then that is normal. My girls 750 is quite noticeable and it's got a stock tensioner.
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Old 12-10-2011, 07:32 PM   #5
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Re: Cam chain tensioner

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Originally Posted by GTR27 View Post
As in valve clearances?

I would have thought they would make a more "tappety" sort of sound.

The sound i'm getting is like a loose chain on a chain guard kind of sound (hence my assumption of CCT) as in rev and let go and get a "zzzzzzzzzz" kind of sound. Top end isnt tapping or knocking at all.
As valve clearances tighten up, the top end will actually get quieter.
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Old 12-11-2011, 03:41 AM   #6
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Re: Cam chain tensioner

Thanks for the responses guys. I'm prob going to take it to a shop and get the 48K service done early and get the CCT checked at the same time.

I do all the other servicing myself, but dont want a lunched engine (although a 1143 rebuild would be nice........) so will leave the valve clearances to the pro's.

I've only just recently done oil and filter too dammit!
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Old 12-11-2011, 12:04 PM   #7
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Re: Cam chain tensioner

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As valve clearances tighten up, the top end will actually get quieter.
That's the common misconception. If the valves get down to almost no lash they get real loud as the slap the seat. Several times I've had customers comment on how quiet the engine was after a valve adjustment.
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Old 12-11-2011, 12:05 PM   #8
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Re: Cam chain tensioner

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Originally Posted by GTR27 View Post
Thanks for the responses guys. I'm prob going to take it to a shop and get the 48K service done early and get the CCT checked at the same time.

I do all the other servicing myself, but dont want a lunched engine (although a 1143 rebuild would be nice........) so will leave the valve clearances to the pro's.

I've only just recently done oil and filter too dammit!
A valve adjustment doesn't have any effect on an oil change.
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Old 12-11-2011, 01:01 PM   #9
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Re: Cam chain tensioner

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Originally Posted by MAD_ARAB View Post
That's the common misconception. If the valves get down to almost no lash they get real loud as the slap the seat. Several times I've had customers comment on how quiet the engine was after a valve adjustment.
Really?

Every bike I purchased new, had its top end get quieter as the miles piled on and the valve adjustment interval approached. After the valves were adjusted to their proper clearances, a very slight ticking reappeared.
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Old 12-11-2011, 03:42 PM   #10
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Re: Cam chain tensioner

On a fresh valve adjustment you can hear the slight tick of the valves. If they get tight down to around .002 to .003 they will tick loud. I've easily done over 50 valve adjustments and have seen quite a few engines that were really tight and loud.
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Old 12-13-2011, 05:59 PM   #11
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I love my Head Job's to be, Tight and Loud...

Quote:
Originally Posted by MAD_ARAB View Post
On a fresh valve adjustment you can hear the slight tick of the valves. If they get tight down to around .002 to .003 they will tick loud. I've easily done over 50 valve adjustments and have seen quite a few engines that were really tight and loud.
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Old 12-13-2011, 06:02 PM   #12
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Re: Cam chain tensioner

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I love my Head Job's to be, Tight and Loud...
Nelson gives the best head, hands down
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Old 12-13-2011, 06:03 PM   #13
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Nelson gives the best head, hands down
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Old 06-06-2012, 10:25 PM   #14
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Re: Cam chain tensioner

Well i had the 48K service done (at 45K) and all the valve clearances adjusted by the local suzuki dealer (who charges lots, but actually has decent mechanics and seems to do a good job).

Quietened it down a bit, but that zzzzz is still there (changes with revs, gets a bit better when bike is hot).

Could it be the water pump? i did a complete coolant flush, then refill with engine ice around 4K/6 months ago - which would be the 3rd time the coolant has been replaced in the bike since i bought it new.

So noise that increases with revs and to me, SOUNDS like the cam chain.

I may actually resort to a manual CCT because it makes me nervous, and my bike is my only form of transport now so I need it to be reliable.
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