Triumphrat

hulkkii · 05-09-2012, 02:43 AM

Hi,

I recently bought a TT600 (2002, driven 32000km), and now have started to worry about rattling/grinding noises coming from the engine. I can hear those noises when the engine is under load (moving, accelerating), but when decelerating (with engine or clutch pulled) those noises are more or less gone.
Rattling frequency goes higher with engine RPM.

I just changed the oil and filter, and that didn't change anything.
After oil change when fairings were off I tried to listen where noises come from and they seem to come from the right side of the engine top area. Rattling was quite audible when idling/revving on side stand with fairings off.

Could that be cam chain (tensioner) causing those noises?
Also I'm not sure when were valve clearances last checked..

Otherwise bike seems to work ok. Accelerates well, no problems with low rpm (after I changed map with tuneecu), but engine noises are worrying me.

I have read that TT600s are noisy, but I'm not sure if this is normal.

Kwhite · 05-09-2012, 11:22 AM

could just be he injectors. noisy buggers they are... but could be more. extra hard to diagnose a noise online lol. best of luck though. hopefully its just the injectors and if so, youll get used to it

hulkkii · 05-09-2012, 03:49 PM

Uploaded a video to youtube..
I'm quite sure that these noises are not totally normal? Most rattle is coming from cam chain side. (In the end of the video, when engine has warmed, there is some higher frequency ticking hearable from the left side also)

TrIcK^ · 05-09-2012, 05:20 PM

Does sound quite tappy, almost a scraping noise. My four makes noises but not a distinct one like that.

kubbie · 05-12-2012, 11:03 PM

Yeah, my TT rattles too but not like that. My best guess is way too much valve clearance on at least a few valves.The noise appears to be coming from the top end.

If you pull the somewhat polished looking cover on right side of engine you can see if there is any slack in the timing chain. You have to pull that cover to double check your timing marks when adjusting the valves any way.

If you don't have one, get a shop manual before getting started.

hulkkii · 05-13-2012, 01:53 PM

Quote:

Originally Posted by kubbie

Yeah, my TT rattles too but not like that. My best guess is way too much valve clearance on at least a few valves.The noise appears to be coming from the top end.

If you pull the somewhat polished looking cover on right side of engine you can see if there is any slack in the timing chain. You have to pull that cover to double check your timing marks when adjusting the valves any way.

If you don't have one, get a shop manual before getting started.

Ok, need to check those clearances soon..
I quickly looked under the timing cover, and the cam chain felt tight (at least from the tensioner side).

rndmheroxx · 05-17-2012, 02:15 AM

from the video, to me at least, it doesnt really sound like its following the revs so much.

and me not being so familiar with bikes, i cant say these even exist on bikes, but if it were a car making that sound, id say it sounded like a bad throw-out bearing. I think its transmission related.

What happens when you squeeze the clutch sitting in neutral?

Hippy · 05-18-2012, 05:43 AM

I had something similar a few weeks back, turned out to be the stator had come loose and was scraping on the rotor.

supaevan · 05-18-2012, 10:41 AM

Quote:

Originally Posted by Hippy

I had something similar a few weeks back, turned out to be the stator had come loose and was scraping on the rotor.

Ouch Hippy!! How'd that happen with those 3 bolts supposed to be holding it in? Did it do much damage?

rndmheroxx · 05-18-2012, 04:57 PM

stator sounds very likely considering it should be attached to the flywheel. Only thing that throws me off is the inconsistency of the noise. Could just be the video too, quality isnt the greatest. would checking voltage at the battery help tell if the stator could be the problem?