How common is a slight metallic/glassy noise?

[vbman213]

A month ago I decided to take my bottom cover off to clean out any dust that may have accumulated! I live in a university dorm and that ventilation is not that great. Dust builds up!

Anyways...

Every since, I have began to notice some noises that were not present before the operation...

I'm talking about a slight metallic/glassy creak that resonates from the middle of the bottom case. It usually only occurs if I flip my MBP over and press in the bottom cover, but I have began to notice it occur at random times just by pressing on the palm rest areas...

Is this something I should be concerned about?

I have found a fix for this problem. Remove the grounding bar or place a piece of electrical tape on the bottom case to prevent the pegs from scrapping against the bottom case (which causes the noise)

Do these modifications affect AppleCare?

 

[omgitscro]

This happened to me too. I read up on it and it's definitely those pegs scraping against the bottom cover. The most common solution seems to be putting the cover on and putting the screws in a star-like pattern; that is, zig-zagging across the entire time, never screwing them in linearly. This fixed mine too. Hope this helps!

 

[vbman213]

This happened to me too. I read up on it and it's definitely those pegs scraping against the bottom cover. The most common solution seems to be putting the cover on and putting the screws in a star-like pattern; that is, zig-zagging across the entire time, never screwing them in linearly. This fixed mine too. Hope this helps!

I have tried this a few times. However, I really starting to get worried that subsequent removal of the bottom plate is going to detrimentally affect the life of the screws and threads that hold the bottom plate down...