Bodywork, Paint, Interior, Trim, & Wiring

discussions about bodywork, paint, interiors, trim, audio, electrical components, wiring, etc.

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HealeyRick
Rick Neville

(469 posts)

Registered:
12/19/2007 05:01PM

Main British Car:
1963 Austin-Healey 3000 Ford 5.0L

authors avatar
Exhaust Heat Shields
Posted by: HealeyRick
Date: November 14, 2010 06:07PM

I was looking to replace the asbestos heat shielding under the Healey floor with something a little more modern. Curtis has a good article on building your own shields here: [www.britishv8.org] but I noticed this on Dave Berheimer's Bugeye RX build:

http://i54.tinypic.com/b3q791.jpg

It's an embossed aluminum sheet bonded to a fiberglass composite insulation. It's self adhesive and only 3/16" thick. What's nice is I could insulate the outside of the footboxes as well due to the self-adhesive.

http://i81.photobucket.com/albums/j222/healeyrick/IMG_0196.jpg

Thanks to Dave for letting me know it's available from Summit for about $110 for a 42" x 48" sheet

[www.summitracing.com]



Edited 1 time(s). Last edit at 11/14/2010 06:10PM by HealeyRick.


britcars
Phil Ossinger
New Brunswick, Canada
(339 posts)

Registered:
02/02/2009 07:58PM

Main British Car:
1977 MGB Roadster, Rover 3.5 ADVENTURE BEFORE DEMENTIA!

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Re: Exhaust Heat Shields
Posted by: britcars
Date: November 14, 2010 08:37PM

I bent and ceramic coated a piece of sheet metal and mounted it to the floor above the mufflers with four bolts. It stands off from the floor about 3/4". Works quite well. The headers, mufflers, resonator and pipes are also ceramic coated, done in a kitchen oven with an insulated extension over the oven door.
Exhaust 06 (600 x 450).jpg


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5854 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Exhaust Heat Shields
Posted by: BlownMGB-V8
Date: November 15, 2010 10:25AM

Phil, where did you get your ceramic material?

JB


MGB-FV8
Jacques Mathieu
Alexandria, VA
(299 posts)

Registered:
09/11/2009 08:55PM

Main British Car:
1977 MGB Small Block Ford, 331 Stroker

Re: Exhaust Heat Shields
Posted by: MGB-FV8
Date: November 15, 2010 09:42PM

Jim, I think that the "Lizard Skin" ceramic coating would enhance any fabricated heat/exhaust shield made. My 2 cents.

Here's their link that show quite a few details/applications. [www.lizardskin.com]

Jacques


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5854 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Exhaust Heat Shields
Posted by: BlownMGB-V8
Date: November 16, 2010 08:17AM

As far as I can tell, that stuff is just paint with ceramic microspheres mixed in. Availability of microspheres has ballooned in the last year or two and they are now available at low cost in reasonable quantities for applications such as house paint. So no real need to pay premium prices for what you can mix at home.

I was interested in the ceramic coating that Phil used. Since he said he baked it I suspect it may be the same thing used to coat headers and I liked his method for enlarging his oven. I might try that if I find a good source for the material, used ovens can usually be found cheap.

Another thought, how about microspheres mixed into the ceramic coating for the headers? Should be extremely effective.

JB


HealeyRick
Rick Neville

(469 posts)

Registered:
12/19/2007 05:01PM

Main British Car:
1963 Austin-Healey 3000 Ford 5.0L

authors avatar
Re: Exhaust Heat Shields
Posted by: HealeyRick
Date: November 16, 2010 08:52PM

Jim,

I bought some microspheres from here: [www.hytechsales.com] and mixed them with some DP40 primer and painted the interior floorpans, footboxes, etc of my Healey. I'm throwing so much insulation at this thing, it will be hard to tell which one is effective. Here's a good thread on Lizard Skin alternatives: [www.chevytalk.org] From what I've read, SwainTech's "White Lightning" ceramic coating seems to have the best results for header coating: [www.swaintech.com]


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