Is it possible for CCT's to fail and lock a motor down with....
#1
Senior Member
Back Marker
Thread Starter
Join Date: May 2007
Location: Riceville, Tennessee
Posts: 150
Is it possible for CCT's to fail and lock a motor down with....
no other motor damage??? I am asking because I just had a lock down and want to know if I should just buy a new motor or try to look at my CCT's and see if I can replace the chain assy and be good to go. Any input would be appreciated.
Thanks ,
Chris.
Thanks ,
Chris.
#2
From what I've read here, you may be able to salvage the engine, but you'll be replacing valves and possibly the piston, depending on the extent of damage. I think if it locked up, it's safe to say something's bent at least.
I have a set of APE manual tensioners that I have not installed yet, but your story is starting to make me nervous about running stock CCTs. How did yours sound before it failed? Some guys aren't that concerned because they believe it'll start making noise to warn them of impending trouble before it fails catasrophically.
I have a set of APE manual tensioners that I have not installed yet, but your story is starting to make me nervous about running stock CCTs. How did yours sound before it failed? Some guys aren't that concerned because they believe it'll start making noise to warn them of impending trouble before it fails catasrophically.
#3
Senior Member
Back Marker
Thread Starter
Join Date: May 2007
Location: Riceville, Tennessee
Posts: 150
Long story short NO WARNING AT ALL. Also not 100% Sure its CCT's but I will be sure to let everyone here know as soon as I find out for sure.
#4
Mine ran flawlessly the night before it locked up while we were on a 5 1/2 hour ride. I started it the next day after checking the oil and let it warm up, as usual, almost to the first mark on the gauge. It sounded perfect. I put my helmet on and rode out my driveway and down the highway at apprx. 45 mph for about a 1/4 mile. All was fine until ALL OF A SUDDEN I hear what sounds like a rock rattling in the engine. I turn around, knowing this cant be a good sound and ride straight back to my garage door. I pulled up to the door to open it and the motor shut down. I pushed it inside and tried to restart it but it only clicked as if the battery was dead I pull the oil fill cap off so I could see if the engine was turning and put it in high gear then pulled in the clutch and pushed the bike and popped the clutch but the motor didnt turn. Locked up.
Long story short NO WARNING AT ALL. Also not 100% Sure its CCT's but I will be sure to let everyone here know as soon as I find out for sure.
Long story short NO WARNING AT ALL. Also not 100% Sure its CCT's but I will be sure to let everyone here know as soon as I find out for sure.
Lets just say .. If you were to change a few words in the above post.. It would be the typical aftermath story of failed CCT's
#5
Oh, and to your question.. No, if the CT's failed in the way you describe.. At the very least you'll find bent valves.. If you lock out, that’s all you'll find. though if the 2 piece OEM valve came apart, or simply hit the piston hard enough it could be pistons, head, and cylinder damage too.
#6
Senior Member
Back Marker
Thread Starter
Join Date: May 2007
Location: Riceville, Tennessee
Posts: 150
Its a 98 with a llittle over 21K miles..... sounds like Im gonna have some engine components for sale very soon
#7
Senior Member
Back Marker
Thread Starter
Join Date: May 2007
Location: Riceville, Tennessee
Posts: 150
Oh, and to your question.. No, if the CT's failed in the way you describe.. At the very least you'll find bent valves.. If you lock out, that’s all you'll find. though if the 2 piece OEM valve came apart, or simply hit the piston hard enough it could be pistons, head, and cylinder damage too.
#10
Wheww, I had my original 98 CCT replaced under warranty with the later Honda version and then just this past week i replaced those CCT with my APE CCT.
I hope i don't have them adjusted too tight.
I set them at finger tight minus 1/2 turn while the engine is was cold.
I then rode 250 miles this past Sunday and all seems fine. The engine sure is still quite.
Fingers crossed!
I hope i don't have them adjusted too tight.
I set them at finger tight minus 1/2 turn while the engine is was cold.
I then rode 250 miles this past Sunday and all seems fine. The engine sure is still quite.
Fingers crossed!
#11
Before you go out and buy a new engine or think about pistons and valve damage, my 98 firestorm had a cct fail and all the symptoms you describe, all i needed to replace was the cct itself, if you're lucky you might not have had any major damage to any of the parts in the engine.
#12
Senior Member
SuperSport
SuperSport
Join Date: Dec 2006
Location: Victoriaville, Quebec, Canada
Posts: 880
a good indicator is the loudness of the "klunk" but do a leakdown test, bent valves don't seal and will let air escape trough the exhaust. Or just put pressure in the cylinder on TDC/fire stroke and listen. At idle, I bet bent valves but ok piston (marked for sure).
A valve job ain't too bad. If a valve snapped off and got chewed by the engine well different thing.
A valve job ain't too bad. If a valve snapped off and got chewed by the engine well different thing.
#13
a good indicator is the loudness of the "klunk" but do a leakdown test, bent valves don't seal and will let air escape trough the exhaust. Or just put pressure in the cylinder on TDC/fire stroke and listen. At idle, I bet bent valves but ok piston (marked for sure).
A valve job ain't too bad. If a valve snapped off and got chewed by the engine well different thing.
A valve job ain't too bad. If a valve snapped off and got chewed by the engine well different thing.
#14
Senior Member
Back Marker
Thread Starter
Join Date: May 2007
Location: Riceville, Tennessee
Posts: 150
Before you go out and buy a new engine or think about pistons and valve damage, my 98 firestorm had a cct fail and all the symptoms you describe, all i needed to replace was the cct itself, if you're lucky you might not have had any major damage to any of the parts in the engine.
Thanks for all your help guys, I appreciate it
#20
Senior Member
Back Marker
Thread Starter
Join Date: May 2007
Location: Riceville, Tennessee
Posts: 150
#21
Senior Member
Back Marker
Thread Starter
Join Date: May 2007
Location: Riceville, Tennessee
Posts: 150
GOOD LORD !!!!!! I wish I had read up on the clutch bleeding hassle on these bikes before I took the slave cylinder off thinking I would just bleed it like normal .....(what was I thinking????)
#22
It's not nerly as hard as it sounds.. But it does take more then "just bleeding" by way of the fitting. Correct angle of the master is required, or you will never get the trapped air out (same as brake master) I find leaning the bike to the right helps with getting trapped air out of the clutch slave.
#24
Senior Member
Back Marker
Thread Starter
Join Date: May 2007
Location: Riceville, Tennessee
Posts: 150
well I finally tore mine down today and the only internal damage that was done was both exhaust valves were bent. You cant even see a mark on the piston. So I have a good set of heads for sale LOL
#25
After reading all this talk about CCT's, should they be replaced at a certain time or when they fail is as good as any time? I have about 35,000 kms on my bike. I bought it used, he was the second owner and never did anything to it except oil changes and tires. I am not sure if they would have been done before based on mileage or if I can be expecting a treat soon.
#26
Senior Member
Back Marker
Thread Starter
Join Date: May 2007
Location: Riceville, Tennessee
Posts: 150
After reading all this talk about CCT's, should they be replaced at a certain time or when they fail is as good as any time? I have about 35,000 kms on my bike. I bought it used, he was the second owner and never did anything to it except oil changes and tires. I am not sure if they would have been done before based on mileage or if I can be expecting a treat soon.
#28
Senior Member
Back Marker
Thread Starter
Join Date: May 2007
Location: Riceville, Tennessee
Posts: 150
#29
All I know is you cant wait til they go bad. Once they go bad you have MAJOR trouble. I had to replace my engine. Most people on here replace the stock CCT's with manual APE tensioners which is what I plan to do. It takes all the guesswork and worry of them failing away.
Thread
Thread Starter
Forum
Replies
Last Post
Ausie996
Modifications - Performance
2
04-21-2007 04:13 AM