"gregz" wrote in message
...
"Zack" wrote:
I have a 10 year old AV receiver that I opened to de-dust. I noticed that
on
the heat sink there a black foam material running across the top length
of
the heat sink. The foam looks like double-sided foam tape, but is sticky
on
one side only.

I'm not sure what the intended purpose of this was, and if I should
attempt
to repair/replace it with something else as it is cracking off.

I could use regular foam double-sided tape, but imagine that the heat
sink
get very hot and the tape would get unsticky very quickly.

Any thoughts on why it would be there in the first place, and what to use
to
replace it.

Some pics:
http://tinypic.com/r/2qvfs6q/5
http://tinypic.com/r/53pm61/5
http://tinypic.com/r/2wq60eo/5

Thanks

If there was a fan, I could see it's use to block free flow.

Greg

Greg, There is a fan.

If you look at the first picture, there is a black hood to the right of my
text. Under the hood is a fan. It doesn't look like the fan actually blows
into the heat sink as the other side of the fan appear closed (unless the
holes are on the bottom face, which I cant see).

Do you think I should try to replace the tape with something? what?