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Hood insulation blanket required?

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Old Sep 20, 2005 | 10:59 AM
  #1  
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Default Hood insulation blanket required?

Greetings,
I have a black '78 that I show (and drive hard). I intend to have a air brush mural painted under the hood. Opinion please....do I need to keep the insulation blanket and just remove it for shows? Or can I get by with no blanket. I seldom drive it for any extended period of time....usually just short jaunts around town. I have a black 2000 vert for my daily driver.
da Viking
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Old Sep 20, 2005 | 03:23 PM
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I've got a ' 77 and kept the blanket on it. We spray painted it Black w/Dupli-Color Vinyl & Fabric Paint 1st. Then had the C-3 Logo air-brushed on it.. Turned out great...
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Old Sep 20, 2005 | 03:25 PM
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can you post pics of the air brush work?

There is another post today about the hood insulation, consensus was it was there mostly as a sound deadener and less of a paint protector as some people thought
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Old Sep 20, 2005 | 03:45 PM
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That is my main worry...paint protection. My mural will be of a Viking that has punched a hole in the hood and you will see his fingers curled around the edges of the hole and him looking in....so it will be quite an extensive mural. That is why I am worried about heat.
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Old Sep 20, 2005 | 07:02 PM
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Go for it! Everything I've read it's like was said to deaden noise
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Old Sep 21, 2005 | 12:28 AM
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without the blanket is not going to damage the paint on the out side of the hood, but i would put something on the inside to protect the mural from oil or other debris while you're driving it and then you can remove it at shows.
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Old Sep 21, 2005 | 01:05 AM
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I used to think it was for noise too..But I have heat checking right above the upper radiator hose(hard to see on hood,but it is there)..no question about it...I have a 78 L-82 with stock GM half blanket....here is blanket...


can post pic of heat checking tomorrow,if necessary...vette hood paint dates to 1987...took vette out of storage in 2002..so it only took less than three years when I noticed it..

Last edited by rihwoods; Sep 21, 2005 at 01:10 AM.
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Old Sep 21, 2005 | 04:20 PM
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Default Hood Blanket

My 78 SA had the blanket, no problems with the hood paint. My '80 did not come with it, the paint has bubbled and popped off the hood about every 4 years. I have had the car repainted 5 times in the 25 years I have owned the car, replaced the hood one time, but the heat seems to cook the paint every time.
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Old Sep 21, 2005 | 05:47 PM
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5 years, no blanket, no problems here.
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Old Sep 22, 2005 | 12:31 AM
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Originally Posted by nc440mc3
My 78 SA had the blanket, no problems with the hood paint. My '80 did not come with it, the paint has bubbled and popped off the hood about every 4 years. I have had the car repainted 5 times in the 25 years I have owned the car, replaced the hood one time, but the heat seems to cook the paint every time.
I have slight checking cause the rad hose is not hot enough to pop paint...very small area and you have to look close to see it...
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Old Sep 22, 2005 | 08:45 AM
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rihwoods, is your radiator hose touching the hood? Kind of looks like it might. So teh checking might actually be rubbing.
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Old Sep 22, 2005 | 09:21 AM
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Early 68 didn't even have a blanket. They added it later, but who knows why. I've always heard it was for noise.
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Old Sep 22, 2005 | 09:32 AM
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Originally Posted by ruby76
rihwoods, is your radiator hose touching the hood? Kind of looks like it might. So teh checking might actually be rubbing.
The heat checking is on the top of hood...but the hose is very close underneath...checking is roughly in an area of 2" x 3"......right above hose below..I'm going to glue a small piece of insulation on underside of hood above hose...
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Old Sep 22, 2005 | 11:25 PM
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Over 140,000 miles without an insulating blanket. Not needed.
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Old Sep 23, 2005 | 05:20 AM
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Originally Posted by ruby76
rihwoods, is your radiator hose touching the hood? Kind of looks like it might. So teh checking might actually be rubbing.
I was thinking that hose doesn't look right...the bends look like they could be in the wrong places....

The new ones you get need to be trimmed..I think...I'm driving back down to Gloucester in a bit but I'll take a pic of how mine looks and post it. 78 and 79 are pretty darn close...

It'll probably be later on in the afternoon...after I get up..night shift sux.

Last edited by PortDawg; Sep 23, 2005 at 05:22 AM.
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Old Sep 23, 2005 | 07:55 AM
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[QUOTE=PortDawg
The new ones you get need to be trimmed..I think...I'm driving back down to Gloucester in a bit but I'll take a pic of how mine looks and post it. 78 and 79 are pretty darn close...
It'll probably be later on in the afternoon...after I get up..night shift sux.[/QUOTE]

Thanks...good point about trimming...that could lower it some..I'll look for your pic....
Rich
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