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Unread 05-10-2008, 08:43 PM   #1
BiTMAP
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Do I need the Insulation under the hood?

hey, my YJ has a nice big mat of insulation under the hood, it also seems to have a square box cut out right around the area at the top of the master break cylinder.

do I need this insulation? can I rip it out without any consequence? And is the cut out section around the break cylinder normal?

I'll go out and take a couple of pictures right now, thanks guys. I know someone here should know the answer




Last edited by BiTMAP; 05-10-2008 at 08:57 PM.. Reason: Add Photo
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Unread 05-10-2008, 09:03 PM   #2
bunkrdfool
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Wow ... mine hasnt had that foam since the day it drove off the dealership!
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Unread 05-10-2008, 09:11 PM   #3
wickedwilly
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No you dont need it. Mine hasen't had one since i bought it.
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Unread 05-10-2008, 09:11 PM   #4
Brandon_YJ
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Remove the insulation.
After a while you'll have a few mm of oil and grime up there to help insulate.
It is a YJ after all!!
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Unread 05-10-2008, 10:58 PM   #5
Ptr
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YJ's had hood insulation!?!?
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Unread 05-11-2008, 12:14 AM   #6
BiTMAP
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second question, how do I take it out?
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Unread 05-11-2008, 12:17 AM   #7
swsscb
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"grip and pull"
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Unread 05-11-2008, 12:17 AM   #8
bunkrdfool
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Rip ... or there should just be little black things holding it on .... just pull... nothing u need up there anyways
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Unread 05-11-2008, 12:23 AM   #9
idaholtby
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This must be were the "Yuppie Jeep" monicer came from. I had no idea these came with insulation. WTF ... maybe this was someones twisted mod?
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Unread 05-11-2008, 12:23 AM   #10
BiTMAP
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awesome thanks guys.

now to fix up the rest of the wear on the engine, that PVC valve looks to be held together with hockey tape :O! oh and fix my terrible wiring, as well as the PO's terrible wiring.
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Unread 05-11-2008, 09:13 AM   #11
Ctskip
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No, you don't need the insulation under your hood. Personal preference is what it boils down to. Nor do you need insulation under your carpeting either. For me, I like it. It's just nice to have, to help deaden the sound and vibration noises coming your motor and road noises, if thats what makes your clock tick. Just as you don't need many things, ie, radio, clock, tachometer, interior lights, doors, they are there for a reason. The question is, do you want and need this? I, myself, don't do any "off roading", mine is a daily driver . I like the ride to be as soft and quiet as possible. I want to be able to carry on a conversation with someone sitting next to me, without needing to yell. I do like hearing the motor (exhaust pipes) though. I would love this insulation under my hood. Just as I have put insulation under what Jeep calls carpeting and along side the kick panels. The road noise has gone down considerably. I am considering insulating the hard top also. Plus, it's much warmer in the wintertime. To each their own. Ain't America great! You gotta love it here.
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I'm lookin at your setup and seeing its not really cut out over the mc. It's off to the side of it? I wonder why? I'll have to go look at mine now and try to finger it out.
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Unread 05-11-2008, 09:48 AM   #12
goatboy
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Why is it so important to take out? If it's not doin' any harm, I'd leave it alone...it does an outstanding job of sound insulation...wish I had one in mine...
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Unread 05-11-2008, 09:51 AM   #13
rustywrangler
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Fairly certain it came with the larado and sahara packages. It is just sound proofing/insulation. Personal preference as said above.

I took mine out but only because it was falling out and nasty.
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Unread 05-11-2008, 11:44 AM   #14
BiTMAP
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well, the entire inside of the jeep has had teh carpet ripped out and is bedlined, so its pretty loud as is. not likely to make much difference with this stuff out. I sorta wanted it out because its nasty lookin, and im sure its gonna cause me some issues this summer in the heat. Imma gonna try to take it out carefully to see how loud it is without it, and if its terrible try to put it back in.

but it seems a bad idea considering how nastly it went after ONE offroad trip, so taking it out may be a better idea just for that.
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Unread 05-11-2008, 01:27 PM   #15
JJorda
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I thought the hood insulation acted as a fire blanket too - if there is a fire in the engine bay, the plastic clips holding the insulation up were designed to melt early and drop the insulation on the engine.

Never had an engine fire, so I can't say I have first hand experience with this. My YJ doesn't have the insulation anyway.
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