help please!strange noise
04-05-2010, 01:56 AM
#1
Member
Squid
Thread Starter
Join Date: Apr 2009
Location: Galati, Romania
Posts: 76
help please!strange noise
Today when I returned from the countryside I started to hear a strange sound coming from my engine like a metallic click! I stopped immediately on the right side of the road and I stopped my engine! When I tried to start again only heard a metallic noise!
My bike is a 98 Honda Vtr 1000 F with only 38000km! I want to mention, my motorcycle was free of problems until now!
What kind of problem do i have???
Thank you,
My bike is a 98 Honda Vtr 1000 F with only 38000km! I want to mention, my motorcycle was free of problems until now!
What kind of problem do i have???
Thank you,
04-05-2010, 02:17 AM
#2
Out of my mind, back in 5
MotoGP
Join Date: Nov 2006
Location: Skurup, Sweden
Posts: 6,109
You most likely have a failed CCT / Cam chain tensioner... With a lot of luck nothing in there hit anything it shouldn't to hard and you need only have the CCT's replaced...
Unfortunately with the re-start and metallic noise you probably made a expensive mistake... I'd guess new valves are needed as well... Possibly more... Either tear the top down if you know how or have a shop help you... Don't try cranking it again, it only adds 0's to the amount this will cost you...
Unfortunately with the re-start and metallic noise you probably made a expensive mistake... I'd guess new valves are needed as well... Possibly more... Either tear the top down if you know how or have a shop help you... Don't try cranking it again, it only adds 0's to the amount this will cost you...
04-05-2010, 04:46 AM
#3
Senior Member
SuperSport
Join Date: Feb 2010
Location: NY State
Posts: 667
I agree - probably a failed CCT. Find the writes ups on how to replace them (look in the knowledge base). Start by removing both valve head covers and take a look before you do anything else. See if you have a lose cam chain, if you do, you have a bad CCT. What I am not sure of is if you do not see a lose chain, that does not necessarily mean that the CCT is good. Next ->
Take the spark plugs out, and the two flywheel covers off the left engine side cover (the two small round circles that unscrew with an allen wrench), carefully see if you can turn the engine counterclockwise at least 2 full revolutions with a 17mm socket wrench, if you can't, you have a problem. Do not force it! Look and listen as you do this. If you can, you are probably ok with just replacing the CCTs, >opinions welcomed here<
Hopefully you did not waste anything else, you will quickly find out. In any case, replace the CCTs with manual units like APEs on the left below. Stock unit on the right.
Take the spark plugs out, and the two flywheel covers off the left engine side cover (the two small round circles that unscrew with an allen wrench), carefully see if you can turn the engine counterclockwise at least 2 full revolutions with a 17mm socket wrench, if you can't, you have a problem. Do not force it! Look and listen as you do this. If you can, you are probably ok with just replacing the CCTs, >opinions welcomed here<
Hopefully you did not waste anything else, you will quickly find out. In any case, replace the CCTs with manual units like APEs on the left below. Stock unit on the right.
04-05-2010, 04:56 AM
#4
Senior Member
SuperBike
Join Date: Dec 2005
Location: South Lake Tahoe, CA, USA
Posts: 1,689
Take the spark plugs out, and the two flywheel covers off the left engine side cover (the two small round circles that unscrew with an allen wrench), carefully see if you can turn the engine counterclockwise at least 2 full revolutions with a 17mm socket wrench, if you can't, you have a problem. Do not force it! Look and listen as you do this. If you can, you are probably ok with just replacing the CCTs, >opinions welcomed here<
Hopefully you will be ok. Good luck!
04-06-2010, 12:43 AM
#6
Member
Squid
Thread Starter
Join Date: Apr 2009
Location: Galati, Romania
Posts: 76
I took my bike in service today and I expect the verdict may not be so bad! I dont trust in roumanian services but this is the only solution for me! I dont have too much free time! Thank you
04-06-2010, 06:48 AM
#7
Senior Member
Superstock
Join Date: Jul 2008
Posts: 320
I noticed a sound from my bike (1998 VTR with 24K miles) this morning also. The best way I can describe the sound is that it's like a film player (like at the movies) clicking away. The clicks get faster with RPM increase, but it's not a very loud sound. I can barely hear it while poking along in DC traffic, and can't hear it at all once the speeds increase (probably due to wind noise). Could this be CCT's? I'm nervous about it now with all the horror stories I've read. If not CCT's, what else could it be?
04-06-2010, 09:14 AM
#8
Senior Member
MotoGP
Join Date: Mar 2007
Location: Phoenix, AZ
Posts: 3,132
I noticed a sound from my bike (1998 VTR with 24K miles) this morning also. The best way I can describe the sound is that it's like a film player (like at the movies) clicking away. The clicks get faster with RPM increase, but it's not a very loud sound. I can barely hear it while poking along in DC traffic, and can't hear it at all once the speeds increase (probably due to wind noise). Could this be CCT's? I'm nervous about it now with all the horror stories I've read. If not CCT's, what else could it be?
04-07-2010, 07:55 AM
#10
Always Learning
Back Marker
Join Date: Oct 2009
Location: Northern Illinois
Posts: 148
I agree - probably a failed CCT. Find the writes ups on how to replace them (look in the knowledge base). Start by removing both valve head covers and take a look before you do anything else. See if you have a lose cam chain, if you do, you have a bad CCT. What I am not sure of is if you do not see a lose chain, that does not necessarily mean that the CCT is good. Next ->
Take the spark plugs out, and the two flywheel covers off the left engine side cover (the two small round circles that unscrew with an allen wrench), carefully see if you can turn the engine counterclockwise at least 2 full revolutions with a 17mm socket wrench, if you can't, you have a problem. Do not force it! Look and listen as you do this. If you can, you are probably ok with just replacing the CCTs, >opinions welcomed here<
Hopefully you did not waste anything else, you will quickly find out. In any case, replace the CCTs with manual units like APEs on the left below. Stock unit on the right.
Take the spark plugs out, and the two flywheel covers off the left engine side cover (the two small round circles that unscrew with an allen wrench), carefully see if you can turn the engine counterclockwise at least 2 full revolutions with a 17mm socket wrench, if you can't, you have a problem. Do not force it! Look and listen as you do this. If you can, you are probably ok with just replacing the CCTs, >opinions welcomed here<
Hopefully you did not waste anything else, you will quickly find out. In any case, replace the CCTs with manual units like APEs on the left below. Stock unit on the right.
04-07-2010, 08:54 AM
#12
Senior Member
MotoGP
Join Date: Mar 2007
Location: Phoenix, AZ
Posts: 3,132
The thing is.. the APE doesn't have fiddly little bits and a over worked, under built, improperly oiled (cooled) spring that eventually will fail and take out your valve train when it does.
If you want the constantly adjusting features of the OEM CCTs, go ahead and use them, they are usually safe for a good long while. Just swap them out every few valve check intervals, even though Honda says they never need replacing, we know better from experience.
(or just get a big dumb bolt and be done with it for good)
04-07-2010, 11:49 AM
#13
Member
Squid
Thread Starter
Join Date: Apr 2009
Location: Galati, Romania
Posts: 76
i was again at the service in the morgning and they have discovered an broken spring at the front cyclinder tensioner!Tomorow they will remove the heads and see If it s any damage at the valves!
04-07-2010, 11:52 AM
#14
Senior Member
MotoGP
Join Date: Mar 2007
Location: Phoenix, AZ
Posts: 3,132
Yep, the front CCT is the most common one to go, have them change both CCTs if you don't go to manual ones so that you don't pull a Becky and have to do this twice: https://www.superhawkforum.com/forum...ad.php?t=21864
04-07-2010, 02:53 PM
#15
Senior Member
SuperBike
Join Date: Dec 2005
Location: South Lake Tahoe, CA, USA
Posts: 1,689
Sounds like a good possibility. An exhaust leak can sound like mechanical clicking. Try listening through a piece of hose or tubing.
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