rattling noise

[tj2]

Originally Posted by paulthewitt

also the noise only happens when the throttle is opened up (or at least that is when you can hear it)

and it is very loud

Sounds to me like you have destroyed the bottom end, and specifically both big ends.....
Terry

Originally Posted by BILLY

The breather hoses run from yur crankcase to your air box on a curvey they are on the left hand sideunder the tank. Camchain tensioners on curveys are prone to fail and make the chain rattle they are situated on the barrols. If the noise has only just started I wouldn't worry to much mine did it for about 6 months before I got it fixed!!!!

What difference will the breather hoses make if they are not connected? I have a rattly sound all the time. I think it's the can chain tensioner, but I'm not sure how to diagnose it further or rectify it.

If the breather hoses are'nt connected the will blow oil out of them! Cam chain noise always sounds worse at low revs and is not so noticable when riding!!!!

i dont know much about engines but this dont sound good, work mate of mine brought a second hand zxr750 and and dropped it on a petrol station forecourt as he tryed to pick it up(engine still running) he rev'd it hard for a few seconds, well that was the end of the engine! rings dead

Originally Posted by BILLY

If the breather hoses are'nt connected the will blow oil out of them! Cam chain noise always sounds worse at low revs and is not so noticable when riding!!!!

Sorry I was connecting the breather hoses with the noise. Now I see you were asking because of the low oil state. And now that I think of it, I don't really notice it when riding.

[rictus01]

Originally Posted by paulthewitt

my bike is making a rattling noise, kninda like a loud clicking. apparently it is not the FI. and my brother seems to think its only doing it since this morning. when it spilled it oil all over the back tyre.

so it was ridden about 1 - 2 miles with not much oil left. i didnt know this at the time btw, just wondering why no grip.

any ideas? it is coming from the engine area. not the exhaust or whatever. my bike is a K3

i cannot compare it to before as i only started riding it today. but andy's sv doesnt do this (but it is the curvy)

thanks
Paul - currently having his easter weekend ruined.

OK, how much oil was left in it (how much did you have to add to get it back to the correct level) and how long did you ride it like that?

Did it get very hot?

where is the noise coming from? (try listening to the engine besides it, or perhaps a large screwdriver on different parts of the engine with the other end against the bone behind your ear).

if it's to one side (look at the top of the cylinder cover and you'll see the raised side, that's the cam chain side) and not the other then it could well be the cam chain tensioners, or if it's louder on the other side it could be the small end on one or both cylinders, if however the noise is lower in the engine then you stand a good chance of either or both of the big ends having gone.

Originally Posted by Fuzz

I have a rattly sound all the time. I think it's the can chain tensioner, but I'm not sure how to diagnose it further or rectify it.

the cam chain tensioners do have a tendency to get stuck, you can release them by undoing the 10mm bolt on the top of each, inserting a small flat blade screwdriver ( mind you don't damage the thread inside) and turning it as far as it will go clockwise, once it won't go any further, pull out the screwdriver and the tensioners should spring back taking up the slack in the cam chaim (that will be the noise you currently have).

Cheers Mark.

I did as you suggested, and guess what? No rattle anymore

I couldn't get a screwdriver in though beacuse the frame was blocking access, so I made myself a little tool.

Workshop Tip: Put an old, small, flat blade screwdriver in a vice and bend to the require angle. Hacksaw off the handle and voila!



Very easy to use, just like it's very own key.

Rictus...Well assisted mate!

I know a man who can! :P

went for a ride 2 mechanics trying to diagnose the problem. as it was pulling cleanly and the only tell tale sign anything was wrong was this noise they werent sure what it was. it deffinately wasnt the cam chains though.

but it went bang....lots of blue smoke, 2 big holes in the engine. so a new engine for me........yay.

Rictus....I withdraw my previous statement....your sacked! :P


Sorry to hear that the problem was indeed something a lot more serious Paul.

But we are talking a K3 bike here? Strewth,what mileage does it have? How on top of the owner maintenance have you been?