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Heat shield spacer

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AUSMHLY

AUSMHLY

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It seems that the rectangle shaped heat shield, on the top of the drivers foot well, on the outside of the car, does not have spacers behind it. All the others do. Is it suppose to?
 
HI ASHLY2, Mine is spaced about 1/4-to- 3/8" away from the chassis and the viod I also filled with thermal insulation.---Keoke
 
Hi Keoke, there are 4 shields. Seems all of them are to have spacers. Being that the previous owner did not put spacers on the one I am talking about, what should I use to get the 1/4-to-3/8"? Would it be OK to use something like a nut as a spacer? That would provide a 1/4" space.
 
OH ASMH2, You could go to the hardware srore and get some Nylon type spacers any thing that is electrically non conductive and can live with the heat is ok.---Keoke
 
[ QUOTE ]
what should I use to get the 1/4-to-3/8"?

[/ QUOTE ]

Home Depot and the like sell a Fiber-cement backerboard called "Hardibacker" that many Healey owners are using to make new heat shields. This stuff should work well to make spacers too as it's 1/4" thick. I have way more than I need since I'm only replacing one or two of my heatshields. Let me know and I can send you a chunk or make the spacers for you (although that may take me awhile to get to).

Cheers,
John
 
AW take your hole saw and cut him out some John---Keoke /ubbthreads/images/graemlins/laugh.gif
 
[ QUOTE ]


AW take your hole saw and cut him out some John---Keoke /ubbthreads/images/graemlins/laugh.gif

[/ QUOTE ]

Keoke - If you tell me how to cut a rectangle with a hole saw I'd be glad to /ubbthreads/images/graemlins/wink.gif
 
Naw the spacer can be round!---Keoke
 
[ QUOTE ]

OH ASMH2, You could go to the hardware srore and get some Nylon type spacers any thing that is electrically non conductive and can live with the heat is ok.---Keoke

[/ QUOTE ]

I don't understand the part about electrically non conductive. I was thinking about using a stack of metal washers like the ones used to hold the board in place. But thought that one thick nut would do the trick. So what about the current washers? Are they non conductive?

What's up with that? I know I'm missing something here. Usually do. /ubbthreads/images/graemlins/cryin.gif It's a learn as I go. /ubbthreads/images/graemlins/thumbsup.gif
 
[ QUOTE ]
[ QUOTE ]
what should I use to get the 1/4-to-3/8"?

[/ QUOTE ]

Home Depot and the like sell a Fiber-cement backerboard called "Hardibacker" that many Healey owners are using to make new heat shields. This stuff should work well to make spacers too as it's 1/4" thick. I have way more than I need since I'm only replacing one or two of my heatshields. Let me know and I can send you a chunk or make the spacers for you (although that may take me awhile to get to).

Cheers,
John

[/ QUOTE ]

Hi John. I would like to use the right product if possible. What's the smallest piece I can get at Home Depot? If its a 4x8 sheet, then I'd like to take you up on your offer. The chunk would be fine. I'll look in the Craftsman section for the square cut drill. Craftsman, via Bob Villa, makes a tool for every job. Hey Bob, got any Healey tools? I don't want to trouble anyone. Maybe I could get away with the nylon spacers that was recommended. You will not see them, and that's good. What do you think? Roger
 
Well, The spacers are of the same material as the shields,the relatively small cross sectional area of the screws while thermally and electrically conductive do not represent a compromising conductive thermal path to the chassis.---Keoke
 
I personally wouldn't want to use nylon on a heat shield. It gets quite soft when heated, and we all know the heat sheilds are not 100% effective !
 
Andrew ,that must be British Nylon ours doee not exibit that characteristic.---Cheers Keoke /ubbthreads/images/graemlins/laugh.gif
 
[ QUOTE ]


Hi John. I would like to use the right product if possible. What's the smallest piece I can get at Home Depot?

[/ QUOTE ]

Roger,

It comes in 3'x5'sheets. Email me with your address and I'll set you up. loftusdesign@cox.net

Cheers,
John
 
[ QUOTE ]

Andrew ,that must be British Nylon ours doee not exibit that characteristic.---Cheers Keoke /ubbthreads/images/graemlins/laugh.gif

[/ QUOTE ]

Keoke,

Nylon 66 melts at 265 deg C, and before it melts has a wide temperature range where it gets more and more soft and squishy. Round an exhaust system it's easy to get into the squishy zone.

BTW ALL nylon is really American as it was discovered / invented by DuPonts /ubbthreads/images/graemlins/lol.gif /ubbthreads/images/graemlins/lol.gif

More info here:

https://www.chemheritage.org/EducationalServices/nylon/produce/obs04.html

/ubbthreads/images/graemlins/england.gif /ubbthreads/images/graemlins/england.gif /ubbthreads/images/graemlins/thirsty.gif /ubbthreads/images/graemlins/thirsty.gif /ubbthreads/images/graemlins/england.gif /ubbthreads/images/graemlins/england.gif
 
We did not know that when we sent Space crafts to the Moon and guess what it didn't melt.I tell you that is British Nylon.---Keoke /ubbthreads/images/graemlins/lol.gif
 
[ QUOTE ]
I personally wouldn't want to use nylon on a heat shield. It gets quite soft when heated, and we all know the heat sheilds are not 100% effective !

[/ QUOTE ]
/ubbthreads/images/graemlins/iagree.gif

someones digging a very deep hole on this one! /ubbthreads/images/graemlins/lol.gif

Cheers,
John
 
Well John, it was not so deep but we did dig a hole up there too!---Keole /ubbthreads/images/graemlins/laugh.gif
 
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