Rattle knocking from front of motor - timing

ouch! But with the issues of the honda, ????

 

Hi. I have been encountering the same noise and actually came onto your thread in search of an answer. Preferably one i could live with. I have followed the thread but the final outcome does not seem to be posted. Can you please let us know what the final outcome was.
Regards
Mike

 

I am going to bring it back in the next few weeks and ask for the owner.
I will keep you posted

 

This did it!

Changed the oil and filter. Running Castrol Magnatech 10W 40. Noise gone. You are a wise man Dogman. Thanks!

 

I hope you punched him in the face for holding your bike at redline to see if it would blow up. It probably didn't hurt anything, but that's just wrong man. I'm actually suprised the noise didn't go away when he did that, if I have my CCT rattle and I hold the RPM's up for a few seconds it goes away (increased RPM's= increased oil flow and pressure, makes noise go away).

In anycase, the solution to this problem, is CCT's (cam chan tensioners). Some say the problem can be repaired by running different oil. Many people have had good luck with this meathod. Others say switching over to manual CCT's is the way to get rid of the problem. Again, many people have had good luck with this meathod as well. I haven't done either yet, allthough I'm savin up to get the manual CCT's for my girl. I've actually had pretty good luck with keeping mine quiet by not short shifting as much. I used to shift into 2nd gear when in the neighborhood to keep down on noise, but them my CCT's made all kinda noise sitting at the traffic light on the way to work in the AM. So screw it, I wind her up and just try to keep her below VTEC in the AM now!!!

 

went back this time I was handed to their best mechanic... Before he started the bike he was telling me about how motorcycles make new sounds all the time and vtec's don't break and im probably just being over protective.
So he finally takes it around the honda lot for 4-5 min than comes in and put a helmet on, and leaves for a 15min ride. when he came back he told me it sound fine nothing to worry about and this bike dose not have cam-chain because its a gear cam and I need to stay off the internet msg boards.

so before I buy a new cct what is this I read about removing the cct and rotating it to add tension, I've never held one in my hand so I don't understand
Can anyone please tell me what to do? I want to take it out work it in and out, lube it and just try to get it going it is only 3000 miles old.
what do you think? worth a try?

 

That conversation must have been a little disconcerting. If your going to do this , roll the engine over to the timing index marks and remove the tensioner. It has been my experience that when this style of tensioner has issues the spring that tensions is damaged and broken at one end but have had several that I could find no problem with visually but would fail shortly after installed. DRZ's are well known for this problem. I would just install a new one for no other reason that to eliminate it as a possible cause at this point. Install the new tensioner and rotate the engine to verify the timing is correct and assemble and ride. It is a pretty simple job and is not likely that you will have timing issues but it is necessary to double check the timing whenever you mess with anything timing related. Good luck.

 

I have the same noise on my 5th gen. Of course I dont have a chain tensioner. Sounds like two spoons being slapped together. Not always constant. I've checked my valve clearances and they are all good. I've checked the air filter box flapper and that's not it.

Just a rat-a-tat tat.

 

I found a failed tensioner of same design that I replaced last year and snapped some terrible pictures of it. This one would back off intermittently and could find nothing wrong with it and replaced it with a manual style. The first pic is of the screw portion and is slotted on the end where the end of the coiled up spring twist's it oot and will push on the back of the chain tensioner guide. The next is of the spring and the body of the tensioner. Hoped that helped at least a little.

 

yes you guys have helped thanks for the photos, I will replace with a new honda oem cct.
If it happens again I will go with manual. two spoons yes thats it!

 

I think mine is an injector/s.

Suckers can be load.

http://www.youtube.com/watch?v=U01xCk6k-_Y&feature=related

 

My bike makes this noise from time to time as well. Have had all kinda oils in it...oem, Mobil Delvac, Mobil V-twin synthetic...still does it from time to time. All my maint is up to date and runs like a top. I ride my bike mainly to/from work...same routine...I may hear it twice a week rattle (or not)...just keeps on going tho...35K +++

 

Check your chains tention. Often times a loose, sloppy chain can make a noise that sounds like its coming from the engine, especially when decelerating.

 

Well I was able to adjust the oem cct's a few times and about the 5 of 6th time of doing this the cct decided to just not hold the adjustment not even for 10 miles it was holding for 150 -250 miles... any how I replaced the cct with a manual APE tensioner and the deeper part of the noise is gone, However there is a tick tick tick that remains on the last 2 adjustments of the old cct and the new manual cct. The sound seems to go away with pull on the engine when taking off or speeding up, it is constant at cruising speeds and is loudest when the engine decelerates, may get worse with high temps and long rides.

so I made a stethoscope out of a plastic cup and an arrow and was able to narrow the sound down to the front left cylinder between the injectors and the middle of the valve cover. Red circle in stolen photo below

where do I look into next? It has 7850 miles on it now still runs like new or better but I cant live with this sound I will do whatever I have to thank you


side note: for fun I held the oem cct in my hand between my finger and thumb let it expand a little and tried to press it back in but it was not happening so i taped-banged the edge of it on the floor a little and i was able to press it in while it was shaking and bumping ...

 

Hootie, you seem to have circled a valve lifter. Have you had the clearances checked yet?

 

no not yet .... can it do harm do the motor?

how do i fix it? have you seen any good post on this issue?
thank you

 

My bike does that my mechanic said it was the throw out bearing and wasn't a bid deal. He told me to replace it when I replace the clutch.

 

Thanks but the clutch makes no diffidence in my noise

 

Hootie, best left to the pro's, not the type of thing I would DIY at least. Not sure if this can do any harm. It is strange for this to happen on such low milage however.

 

ha ha too late I'm going in... I have the valve covers off and just printed out 60-80 pages of the service manual(pm me if you need it) looks like I may need a tool called a slide pin stopper can I use something else ?