Cbr600 Tensioner, Timing Chain - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 17 (permalink) Old 08-09-2006, 07:43 PM Thread Starter
 
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Cbr600 Tensioner, Timing Chain

HEY ALL, I HOPE EVERYONE IS ENJOYING THE SUMMER,
I AM GOING TO CHANGE MY TIMING CHAIN AND TENSIONER. ANYONE HAS AN IDEA IF I SHOULD GO FOR HONDA DEALER OR AFTERMARKET PARTS, AND ANY SUGGESTION WHERE I SHOULD BUY., COMPANY OR ANY WEB LINK? DOES IT REALLY MAKE A DIFFERENCE STOCK OR AFTERMARKET. ? AS QUALITY AND PRICE?
ALSO I READ SOME AND MOST PEOPLE SAY I SHOULD GO FOR MANUAL TENSIONER. THEY SAY HYDROLICS ARE NO GOOD. I APPRECIATE ANY HELP AND ANY TIPS ABOUT INSTALLING IF THERE IS SOMETHING TRICKY.
RIDE SAFE EVERYBODY :-)
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post #2 of 17 (permalink) Old 08-09-2006, 07:48 PM
 
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What year of CBR 600 are you riding? I'd get a manual cam chain tensioner no matter what model you're on.
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post #3 of 17 (permalink) Old 08-09-2006, 07:50 PM Thread Starter
 
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Oh Sorry, Its An F3 Cbr600 1996 :-)
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post #4 of 17 (permalink) Old 08-10-2006, 02:59 AM
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Quote:
Originally Posted by King Bob
What year of CBR 600 are you riding? I'd get a manual cam chain tensioner no matter what model you're on.
Yes... please please please don't get another automatic CCT. Get the manual.

I haven't did the job but its not too bad. As long as your somewhat mechanically inclined you should be ok. Do it yourself.

Bee might be able to shed more light on this...




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post #5 of 17 (permalink) Old 08-10-2006, 09:40 AM
 
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I put a manual lifter from APE on my '04 F4i and I have had no problems since...

My question is why are you changing out the timing chain?
If it is worn or damaged, you will also have to replace the gears or you will have problems later...The CCT lifter is a simple fix...the timing chain is another matter...
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post #6 of 17 (permalink) Old 08-10-2006, 12:16 PM
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Quote:
Originally Posted by bumblebee
I put a manual lifter from APE on my '04 F4i and I have had no problems since...

My question is why are you changing out the timing chain?
If it is worn or damaged, you will also have to replace the gears or you will have problems later...The CCT lifter is a simple fix...the timing chain is another matter...
You probably Don't even need the new chain.

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post #7 of 17 (permalink) Old 08-18-2006, 09:27 PM
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Just remember a manual cam chain tensioner needs to be adjusted manually...silly as it sounds, there is slightly more maintenance involved. On the other hand, Honda is known for having cam chain tensioner issues and putting in another OEM one means it will need to be replaced again at some point.

Larry

Rarely is the question stupid, but sometimes the answer is you need to run everything you read online through your own personal BS meter to determine if it makes sense to you.
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post #8 of 17 (permalink) Old 08-20-2006, 10:19 PM Thread Starter
 
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Originally Posted by jeeps84 View Post
You probably Don't even need the new chain.
ok, i openned up the engine and valves were broken, cylinder #1. one mechanic told me that the reason is this: timing chain gets expanded in time and tensioner pushes more, . timing chain gets expanded to the point tensioner cant push more, its at the end. so since the chain is not that much tight, it jumps and that messes up the timing and piston hits the valves. is that not right? he said if i put just new head, with the same timing chain its gonna happen again since chain is longer than it is supposed to be, and it wont be tight
please let me know what you think. thanks :-)
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post #9 of 17 (permalink) Old 08-21-2006, 08:00 AM
 
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Originally Posted by serkant3 View Post
ok, i openned up the engine and valves were broken, cylinder #1. one mechanic told me that the reason is this: timing chain gets expanded in time and tensioner pushes more, . timing chain gets expanded to the point tensioner cant push more, its at the end. so since the chain is not that much tight, it jumps and that messes up the timing and piston hits the valves. is that not right? he said if i put just new head, with the same timing chain its gonna happen again since chain is longer than it is supposed to be, and it wont be tight
please let me know what you think. thanks :-)
What you describe is exactly what happens when the CCT goes out and not replaced...yes, if it jumped time and the piston did indeed strike valves, you have a major repair. Besides a new head, you may want to install a new piston. If you are going to replace the timing chain, the gears will be worn and should be replaced too. If you want to keep the bike for a while...you should just do a tear down and overhaul...with the head off, and replacing the timing chain and gears, you are almost 1/2 way there already.


Your decision now is whether you want to keep the bike and spend the money...If you can't do the rebuild, and will have to pay someone to do the work...it might be time to part the bike out and look for another.
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post #10 of 17 (permalink) Old 08-21-2006, 08:06 AM
 
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Originally Posted by bumblebee View Post
What you describe is exactly what happens when the CCT goes out and not replaced...yes, if it jumped time and the piston did indeed strike valves, you have a major repair. Besides a new head, you may want to install a new piston. If you are going to replace the timing chain, the gears will be worn and should be replaced too. If you want to keep the bike for a while...you should just do a tear down and overhaul...with the head off, and replacing the timing chain and gears, you are almost 1/2 way there already.


Your decision now is whether you want to keep the bike and spend the money...If you can't do the rebuild, and will have to pay someone to do the work...it might be time to part the bike out and look for another.

Wow, that does not sound fun.



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post #11 of 17 (permalink) Old 08-21-2006, 03:27 PM Thread Starter
 
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so i dont have to change the chain? just changing the tensioner is ok? i already got the head, piston and ring. i will get tensioner. the only thing i am not sure about is chain. is it not true what that guy told me? chain is not expanded? can i still use it?
one thing i ddidnt understand, why would gears get worn out if i put a new timing chain? i didnt get the connection, please explain :-) thank you :-)
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post #12 of 17 (permalink) Old 08-21-2006, 03:29 PM Thread Starter
 
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its very easy, i can do it myself, i have tools and i have service manual :-)
i am just not sure about timing chain
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post #13 of 17 (permalink) Old 08-21-2006, 04:25 PM
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post #14 of 17 (permalink) Old 08-22-2006, 09:00 AM
 
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Originally Posted by serkant3 View Post
so i dont have to change the chain? just changing the tensioner is ok? i already got the head, piston and ring. i will get tensioner. the only thing i am not sure about is chain. is it not true what that guy told me? chain is not expanded? can i still use it?
one thing i ddidnt understand, why would gears get worn out if i put a new timing chain? i didnt get the connection, please explain :-) thank you :-)

OK...just like your final drive chain and sprockets wear, so does the timing chain and gears. If your chain has expanded...or "stretched"...it will not fit properly when on the gears and will cause wear.

SO...yes, you could replace the chain without new gears...just like you can replace your drive chain without changing the sprockets...but a new chain on old gears/sprockets...will cause the new chain to wear quickly and the old gears/sprockets to wear and possibly fail.

To me...If I was going that far into the engine...I would do a rebuild...

Also, when you put a new piston/ring setup in one cylinder back in the block, the compression will differ from the cylinders around it...depending on the mileage on the bike, could be another issue
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post #15 of 17 (permalink) Old 08-28-2006, 11:04 PM
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good bumblebee I am impress you know your poop..... wanna fix mine
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post #16 of 17 (permalink) Old 08-29-2006, 07:38 AM
 
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good bumblebee I am impress you know your poop..... wanna fix mine
Nope...I am bringing the 750A project back from the farm with me in a couple of weeks...the last license plate on it was 1994... It will be a complete teardown and restore...All the OEM parts are there except for the exhaust...it is a pretty clean bike too...it was stored inside from the person I bought it from...and I have kept it inside since I got it...
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post #17 of 17 (permalink) Old 08-29-2006, 03:21 PM Thread Starter
 
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bike has 19000 miles, i am puttin new ring only on one cylinder, could that really be a problem cuz of different comprassion? thanks
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