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Whirling/Whining Noise from Chaincase?

JohnnyBravo

JohnnyBravo

Active Member
Messages
132
Age
43
Location
Illinois, US
I updated the gearing to 24/40 w/70P chain. This gave a 1/4" slack. I also exchanged out the stock plastic tensioner with the IQr roller tensioner. Rode the sled yesterday and noticed upon deceleration, before I even applied the brake, a whining noise coming the chaincase. Although not terribly annoying, it's there and noticeable. I have a feeling this is normal, correct? Is it just the chain slamming up against the tensioner when I let off the gas or is something else going on?
 
JohnnyBravo said:
I updated the gearing to 24/40 w/70P chain. This gave a 1/4" slack. I also exchanged out the stock plastic tensioner with the IQr roller tensioner. Rode the sled yesterday and noticed upon deceleration, before I even applied the brake, a whining noise coming the chaincase. Although not terribly annoying, it's there and noticeable. I have a feeling this is normal, correct? Is it just the chain slamming up against the tensioner when I let off the gas or is something else going on?
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Comeing fromy the iqr tensioner, normal.
 
As flash said, it's from the iqr tensioner.
I like to soak it in synthetic chain case oil for a day and install.

If you installed it dry, it takes a bit for the oil to find its way to lubricate.
 
Thanks all. I figured it was normal. Unfortunately Brock, I didn't soak in oil. Installed it dry. Over time will the noise decrease any as the oil works it way to lube?
 
It might quiet down some but the wine is normal. That's why they come with the plastic one it's quiet
 
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