Waterproofing? Nope, It serves no mechanical purpose.
Recyclable? Yes, but you can probably sell it for more.

"Collectif LFG" <clfg@videotron.ca> wrote in message
news:rOA2b.23186$ZG2.692160@wagner.videotron.net.. .
> Hi
>
> I own a 1999 Acura 3.2 TL with the regular 225 hp engine. I was
> wondering if I can get rid of that bogus-looking plastic cover on top of
> the engine. I like the way the engine looks underneath. On top of that,
> it is a source of vibrations. Is there a particular use to it like for
> waterproofing? Can I shove it in the recycle bin? Thank you in advance
> for answers
>
> Jerome
>