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Old 04-04-2011, 02:41 AM
 
Location: Eastern Missouri
3,054 posts, read 5,029,987 times
Reputation: 1377

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The first thing that should be removed on many new engines is the plastic covers. Who ever thought that was a good idea was an idiot, but what is worst is that board rooms went along with it!!
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Old 04-04-2011, 05:28 AM
 
Location: Earth
4,227 posts, read 20,289,944 times
Reputation: 2209
I don't know why they put those silly plastic parts on, but it makes me think they want you to see your vehicle as nothing more than a personal appliance.
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Old 04-04-2011, 09:01 AM
 
14,777 posts, read 34,507,040 times
Reputation: 14278
There's a couple reasons. First it serves as sound deadening and insulation. The second, it serves as some amount of stylizing for what are generally ugly engine bays. I tend to rip them off, but some things like the valve covers on the LSx motors actually do dress it up a bit versus staring at black plastic head covers and ingition modules.
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Old 04-04-2011, 09:06 AM
 
Location: Ohio
780 posts, read 2,135,417 times
Reputation: 628
If you remove the plastic cover, the engine below is even more boring to look at.

That said, engine cover is the first thing to go when I acquire a vehicle.
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Old 04-04-2011, 09:50 AM
 
Location: Pikesville, MD
5,229 posts, read 11,487,380 times
Reputation: 4846
Quote:
Originally Posted by NJGOAT View Post
There's a couple reasons. First it serves as sound deadening and insulation. The second, it serves as some amount of stylizing for what are generally ugly engine bays.
Both reasons are qute valid. And the first is teh PRIMARY reason for it, as was mentioend on page 1.

Normally they are quite easy to remove, too, so working on the engines ins't THAT hard.

For example, the 740iL with cover:



and without:



And where mine's at as of last night:




Personally, I like the look of a well designed cover vs a mass of wires everywhere. Whcih is why I love Chip Foose's stuff:













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Old 04-04-2011, 09:54 AM
 
Location: Inland Empire, Calif
2,887 posts, read 4,606,997 times
Reputation: 2766
They want the idiots who THINK they know what they are doing, to keep their hands off...!!!
All you need to know is where the gas goes in, and where the steering wheel is located.
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Old 04-04-2011, 09:56 AM
 
Location: Pikesville, MD
5,229 posts, read 11,487,380 times
Reputation: 4846
Quote:
Originally Posted by Nayabone View Post
They want the idiots who THINK they know what they are doing, to keep their hands off...!!!
All you need to know is where the gas goes in, and where the steering wheel is located.
It's for sound deadening, as NVH is a primary concern these days.
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Old 04-04-2011, 09:57 AM
 
3,129 posts, read 5,143,332 times
Reputation: 1588
It helps keep noise and dust out.
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Old 04-04-2011, 10:11 AM
 
Location: Pikesville, MD
5,229 posts, read 11,487,380 times
Reputation: 4846
Quote:
Originally Posted by RandyWatson13 View Post
It helps keep noise and dust out.
Keeps noise down, but didn't do a very good job of keeping dust out on mine, as I saw when I went to replace the intake manifold gaskets on teh BMW this weekend:



eeew. Needed cleaning BAD.
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Old 04-04-2011, 01:44 PM
 
Location: Lafayette, La
2,019 posts, read 4,396,842 times
Reputation: 1412
It is mainly for sound deadening in luxo-cars, but also to give the engine a more "elegant" look. Which is to say make it a pain in the ass to work on in exchange for looking....stupid.
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