NAS 90 fuel tank heat shield - Defender Source
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  #1  
Old February 16th, 2008, 09:33 AM
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Dave McHenry
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NAS 90 fuel tank heat shield

Can anyone tell the size for the NAS fuel tank heat shield? I'm going to make one from stainless steel and need the size to cut.





Thanks

Jetmech
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  #2  
Old April 23rd, 2009, 08:53 PM
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Charles Galpin
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David, did you ever get an answer to this? I need to make one as well, and need rough shape/dimensions if anyone has them. A picture would be good too.
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  #3  
Old April 24th, 2009, 08:43 AM
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Charles Galpin
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Anyone, anyone, Bueller? Cm'on someone hook a brother up. Shouldn't take more than 5 minutes to snap a picture of yours and upload. Pleeeeeeeeease?

I scoured the ECR site and best I could come up with is

http://www.eastcoastrover.com/115/11521.jpg

But I'd like a view from the other side please.
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  #4  
Old April 24th, 2009, 08:51 AM
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Jim Cheney
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Lots of pix of the fuel tank, but not one from that side...
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  #5  
Old April 24th, 2009, 08:58 AM
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Michael Bruzga
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Heat shield? made of stainless??

Heat shields are made to dissipate heat from a certain area; correct?
Stainless would retain heat; correct?

I'm confused.......
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  #6  
Old April 24th, 2009, 08:59 AM
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  #7  
Old April 24th, 2009, 09:03 AM
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Charles Galpin
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Perfect Mike. Thank you very much!

The idea is it deflects the heat, just like heat shields around exhaust components on cars which are very thin metal. The air flow between the tank and the shield stops the heat making it to the tnak. The stock ones are some sort of composite/fiber (maybe asbestos) board with reflective tape on them.

I haven't made mine yet, but plan on using some scrap aluminum unless I find something more suitable at lowes/home depot/autozone tonight. But I need to make one up and get my tank back in tomorrow. The truck has been off the road far too long.
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  #8  
Old April 24th, 2009, 09:06 AM
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Michael Bruzga
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AL would be much better than SS; but I still would use a carbon or heat "resistant" material.

Just my 2cents


Edit: I highly doubt that anything oem is asbestos!
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  #9  
Old April 26th, 2009, 08:05 AM
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Dave McHenry
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I used some .025 SS that i found in a scrap bin at work.
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  #10  
Old April 26th, 2009, 10:32 AM
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Charles Galpin
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I'll take some pictures today and post them later on, but I made mine out of some scrap aluminum I had. It's hard to tell from Mike's picture how much clearance he has between the exhaust and the shield but I'd like opinions on mine. Mine seems fine as-is. I think rocks just persuaded mine to twist toward the tank (loose fitting maybe).
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  #11  
Old April 28th, 2009, 08:04 AM
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Charles Galpin
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I forgot to post back about this. After a lengthy drive, I can put my hand between the tank and shield and it's comfortable to the touch. Don't try touch the exhaust as a comparison - even though it's cool on the other side of that shield, the exhaust was still scalding hot. Is this normal?

http://lhsw.com/gallery/d90_fuel_tank/DSC04111
http://lhsw.com/gallery/d90_fuel_tank/DSC04112
http://lhsw.com/gallery/d90_fuel_tank/DSC04113
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  #12  
Old April 28th, 2009, 03:07 PM
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Jim Cheney
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ah ha
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  #13  
Old April 28th, 2009, 03:23 PM
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Charles Galpin
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A day late and a dollar short my friend.

J/K. Good to know and easy to change if I ever want to do it.
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