Clunking noise from front sprocket area.

[Bradders]

Ah, Trigger now you’ve confused me. It’s been a long time since I rode bikes so not sure about the different chains. Do you know how long the bolts should be or where I can find out?

[taysidedragon]

M6 x 12mm

[Bradders]

Evening all. Still have a clunking noise from the front sprocket area. Have taken the chain off to give it a good lube and then rotated the sprocket and the noise stopped. There seems to be a fair amount of play when I wiggle the sprocket. Is that normal?

[mike the bike]

Mine"s got a bit of play as well. Don't worry about it.

[Nurse Julie]

Yep, mine is the same, play that is. No clunking noise though.

[hairygit]

As mentioned earlier, while the chain was off did you check EVERY link for stiffness or binding? It only takes one to make quite an alarming noise. The fact the noise isn't happening when the sprocket is rotated without the chain really seems to point to an issue with the chain. With the sprocket cover off, rotate the wheel with the chain on, and do it slowly, when you hear the noise, mark the outside of the chain with chalk or similar where it is in contact with the sprocket. Continue rotating, and if the noise occurs again when the marked part of the chain is on the sprocket, that part of the chain needs careful inspection.

Evening all. Still have a clunking noise from the front sprocket area. Have taken the chain off to give it a good lube and then rotated the sprocket and the noise stopped. There seems to be a fair amount of play when I wiggle the sprocket. Is that normal?

Sent from my X6pro using Tapatalk

[Bradders]

Thanks for your replies. That’s very reassuring about the play in the sprocket. Thanks. I did check the links but I will do them again tomorrow and use hairygit’s method. Am I right in thinking the clip that joins the link should have the open end facing forward? Just watched a YouTube clip with the open end facing backward!

[taysidedragon]

Thanks for your replies. That’s very reassuring about the play in the sprocket. Thanks. I did check the links but I will do them again tomorrow and use hairygit’s method. Am I right in thinking the clip that joins the link should have the open end facing forward? Just watched a YouTube clip with the open end facing backward!

The closed end must face in the direction of movement of the chain! That is, facing forward on the top chain run. Open end faces backwards.

[Bradders]

Thanks taysidedragon that’s how I had had it. This guy on YouTube had it the other way round.

[taysidedragon]

Thanks taysidedragon that’s how I had had it. This guy on YouTube had it the other way round.

But you said the YouTube clip had it right!

[mike the bike]

Don't believe everything you see on YouTube.   Think about it logically. 

[taysidedragon]

Don't believe everything you see on YouTube.   Think about it logically.

I don't Mike, but Bradders seems to be contradicting himself. 

[Bradders]

Sorry taysidedragon, I was confusing myself. I was looking on the bottom chain run and getting confused.

[mike the bike]

When I fit a chain I have to think about which direction the split link goes.  I point at the chain with my finger.  I then rotate the wheel and check if my finger will hit the open end and knock it off (bad) or the closed end (good).
Hope this helps.

[Bradders]

Thanks Mike, that’s a good tip. Im not the most mechanically minded person in the world so tips like that help.