cam chain tensioner-again
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cam chain tensioner-again - 8/2/2005 2:58:18 AM
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ozrider
Posts: 14
Joined: 8/1/2005
Status: offline
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I have a cbr 1989 with a cam chain rattle at start up. The posts suggest either a servicing (clean up) of cam chain tensioner so that it operates correctly or preload the cam chain tensioner by adding washers. Does anyone have any advice on which course of action is best and if it is the latter then is the mod process straightforward?
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Stay rubber side down...
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RE: cam chain tensioner-again - 8/2/2005 1:25:40 PM
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xfact
Posts: 11
Joined: 7/5/2005
From: Bulgaria
Status: offline
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Best advice:
JUST CHANGE IT
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RE: cam chain tensioner-again - 8/4/2005 2:17:35 AM
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ozrider
Posts: 14
Joined: 8/1/2005
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Replacing cam chain tensioners is no cheap option when you throw in cam chain and guides. What is the lifespan of this part before I am faced with the rattle again? is it a short term solution with a big price tag?
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RE: cam chain tensioner-again - 8/4/2005 11:13:32 AM
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xfact
Posts: 11
Joined: 7/5/2005
From: Bulgaria
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Depends on you, If you change oil and filter on time.. I suppose about 40k miles, if not shorter. Some have no problems with it. I changed only the cam chain. The tentioner is okay. Only the chain was stretched.
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RE: cam chain tensioner-again - 8/5/2005 5:37:48 AM
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ozrider
Posts: 14
Joined: 8/1/2005
Status: offline
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thanks for the reply
I think that the cam chain has been replaced but the tensioner is probably the original (113,000ks on the bike). I am going to open it up as I don't like rattles and i guess i can have a look then. Is there a vfr tensioner that may fit the cbr that may work better?
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Stay rubber side down...
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RE: cam chain tensioner-again - 8/7/2005 3:14:56 PM
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xfact
Posts: 11
Joined: 7/5/2005
From: Bulgaria
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Sorry, no idea...:(
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RE: cam chain tensioner-again - 8/10/2005 9:34:30 PM
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Firefox11
Posts: 110
Joined: 4/14/2005
Status: offline
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Good grief, you know I have posted on this quite a few times myself...
I noticed a 'rattle' the last time I rode, and it was after a good 20 mile stretch and I started to pay attention. Now since I have not changed my oil in the time I really like and the tensioner is hydrolic, I'm going to wait and see if the oil change will help or remedy the issue. I have approx 2,100 miles on the oil in my bike now. I only like to run between 1,500 - 2000 miles on my oil. And this issue use to only happen at startup. If the issue continues, I will definately change the cam chain and tensioner just because. Its not worth messing up a perfectly good motor because of a worn out component, ya know?
Oh well, I think I'm gonna go check it out now.. :p Gotta do what ya gotta do.. Hehehe
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RE: cam chain tensioner-again - 8/14/2005 4:51:58 AM
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ozrider
Posts: 14
Joined: 8/1/2005
Status: offline
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I don't think I will be too quick to get in there and replace the cam chain tensioner as I have read that even replacing with a new one has not fixed the problem for long. My research suggests it is a flaw that dogs all the cbr 1000f. Is there anyone out there that hasnt got this problem?
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RE: cam chain tensioner-again - 8/15/2005 7:08:52 PM
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slowpoke
Posts: 518
Joined: 8/6/2005
From: Denver, Colorado
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At 46k, I am going to adjust my valves soon. When I have the valve cover off, how does one measure chain stretch and the cam chain tensioner? The Honda manual shows how to take off the cover. And it shows how to take off the cams and cct, but doesn't show how to inspect it.
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RE: cam chain tensioner-again - 8/15/2005 11:46:09 PM
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ozrider
Posts: 14
Joined: 8/1/2005
Status: offline
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Sorry I don't know how to inspect the cc either. I also don't know how to replace the camchain. The manuals I have don't show how this is done either. Anyone got any clues to this too? Do I need a chain breaker?
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RE: cam chain tensioner-again - 8/16/2005 12:33:30 AM
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slowpoke
Posts: 518
Joined: 8/6/2005
From: Denver, Colorado
Status: offline
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quote:
ORIGINAL: ozrider
Do I need a chain breaker?
I bought a Motion Pro Jumbo chainbreaker last week. I used it to replace my chain last weekend. The tool works great. Breaks chain by pressing out the pins. It also presses on the side plate, and then rivets the masterlink with a dimple.http://www.twowheelforum.com/attachment.php?attachmentid=4173
< Message edited by slowpoke -- 8/16/2005 12:07:13 PM >
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RE: cam chain tensioner-again - 8/21/2005 4:52:06 PM
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Rx7man
Posts: 279
Joined: 8/21/2005
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one method of checking chains that works for pretty much any chain is to drape it over a sprocket, and then pull up on the chain at midspan on the sprocket, if it lifts off the teeth, it's stretched, for the drive chain you'd be pulling it backwards ffrom the back side of the rear sprocket, not for tolerances, I have no idea, but a new chain will not lift off the sprocket at all, hope that helps you a little
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Do not do as I do, I decline all liability and responsability for those who copy or attempt to copy what I have done
Mechanics... Start what they finish
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RE: cam chain tensioner-again - 12/23/2005 4:46:27 PM
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vet5
Posts: 6
Joined: 11/22/2005
Status: offline
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i was told a long time ago, by a very good mechanic that " if you can see light between the chain and sprocket its worn out. i've always used this method.
cheer's dave
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RE: cam chain tensioner-again - 12/24/2005 7:49:23 PM
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MarkR
Posts: 846
Joined: 8/20/2005
From: Gold Coast, Australia
Status: online
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When I had my Chain and Tensioner replaced, The bike was quieter, but still had noise, I think that my alternator and starter chains are also noisy, but I don’t think I can do much about them without spend some big dollars.
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Printable Version
) and she rattles on low rpms. I already replaced the tensioner, but it did not fix the problem, althoug the noise is not that bad now. I will replace the chain this winter, maybe new engine bearings and rings too. 
