What is this for?



Does it help cool the engine? Help heat it in winter? or?

im looking for some educated information on this. couldn't find anything so far, very interested of why infiniti decided that we need to have this on our cars.

 

well my taurus SHO and my acura had one but as far as i know it's only for noise deadening and to keep the hood cool to the touch. it adds no operational benefits.

 

I took mine off.

dead weight FTL!!
Plus engine heat would escape a little easier without it I would assume.

 

I also took mine out because it was brushing up against my GTspec FSB when the hood was shut. It left fine scratches on my strut bar.. now I want to powdercoat the damn thing!

 

bump anyone else??

 

Some one told me that in case of an engine fire that the liner would melt smothering the fire? Not sure about that.

 

intersted if anyone finds the actual reason...is it in the service manual?

 

I was told the same thing

 

Hoodliners are meant to serve a number of crucial safety functions. Without an automotive hoodliner, it is very likely the hood of the car would quickly overheat and become warped, or the paint would melt. A good hoodliner keeps the hood cool and can also protect the car's engine from overheating by drawing heat away from the engine and into the core of the hoodliner material. Possibly the most important function, a hoodliner is designed to protect drivers and passengers in the event of an engine fire. When an engine catches fire, a set of bolts underneath the hood are designed to melt quickly, which releases the hoodliner onto the source of the fire. A fire-retardant hoodliner can smother a fire, giving a passenger more time to exit the vehicle.
- from Asbestos.com

A material secured to the underside of the hood to provide sound insulation. It is usually made of polyethylene, polypropylene, polyurethane, or a fabric of polyester
- from motoera.com

 

i never really thought about it like that, from a safety perspective. thanks for the lesson!

 

^+1 nice to know, i was thinking about removing mine to get teh FSB to fit but i guess ill live with it rubbing rather than not have it at all...

 

Mine is in bad shape. Dealer wants 250 bucks for a new one. Been reading around and most people say it does very little. Lots of different opinions about to keep it or not

1. In the event of an engine fire well ... that is what insurance is for. Sure it might smother the fire but if you are worried about it carry an extinguisher.

2. Most have noticed a significant drop in engine bay temp after removing it. However some noted in colder climates this could be a bad thing for short trips.

3. %99 report zero problems with paint over many years. 1% that claim it will melt or burn the paint. I find it hard to believe it would. Given the paint in the engine compartment doesn't.

4. Hood warp? Again ... not sure it would ever happen under normal conditions .... plus if the temps ever got that high then you have other problems, like your motor is about to blow something.

5. It makes the engine quieter inside the cabin and as well outside. This is true and depending on the car it is very noticeable.

I am on the fence. Has anyone removed it? How is the hood and the paint holding up? 250 bucks is a good detail job I would rather buy. :P

 

^^ Why not get a used one?

 

I have looked. Contacted a few scrap yards to see if they have one. No dice so far. I guess I could patch it in the meantime until I find something. Not sure what would be suitable to patch it tho ... any ideas?

 

I guess the patching technique would somewhat depend on how it is damaged. Got any pics?