[Ti] PowerBook G4 Fan Noise

[John McGibney]

Its the fan. You might try a drop of thin machine oil on the bearing.  
On the motor end there's usually a gummed paper covering the end.  
Peel it off and put the drop there.

John

On Feb 10, 2009, at 6:00 PM, Simon Royal wrote:

> Hi
>
> I have an 867Mhz PowerBook G4 running Leopard for a few months. It  
> was a bit of a repair job, but it is fully working now.
>
> The fan on the right side of the unit works fine most of the time.  
> You can hear it spinning but nothing out of the ordinary, until the  
> machine gets hot or is under a lot of work then the fan steps up a  
> gear. The fan gets very loud and starts making a horrible grinding  
> noise.
>
> I have Googled this problem with a number of solutions or causes  
> but nothing concrete.
>
> Is it the fan? Is it normal wear and tear as this is a 6 year old  
> machine?
>
> I have checked the fan and it looks clean. I also read that  
> sometime if the cables to the fan are not in the right place they  
> can get trapped between the casing and vibrate slightly, but this  
> is definately a rotating noise.
>
> The only other thing to mention is I have a few screws from the  
> bottom of my casing. There should be seven screws and I only have  
> four. I have changed the position of the screws but it makes  
> difference. I thought it might the casing slightly lose and vibrating.
>
> I should be able to pick up a fan pretty cheaply and I can fit it.  
> Would it be worth it? Would it be worth replacing both the fans  
> (there is one in the middle at the back blowing towards the back).
>
>> From reading around noisy fans seems to be quite common.
>
> Any help would be grateful.
>
> Simon
>
> --- http://www.simonroyal.co.uk - Mac news, reviews, guides,  
> upgrades, hacks and more... - http://www.nmug.org.uk - webmaster  
> for Norwich Mac User Group - The box said requires Windows XP or  
> better, so I bought an Apple Mac.
>
>
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