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Jim_Newman

Jim_Newman

Jedi Hopeful
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Good afternoon gentlemen:
As I mentionned on an earlier post, I have now done all the usual interior insulating tricks that can be done. In time the floor still gets hot after a spirited run on a warm day. The restoration guides make it clear where asbestos sheeting were located around the driver footwell and firewall and that is all in place. However, I can find no mention of heat insulation under the floor between the floor and the muffler. Moss provides a heat shield of undisclosed material for this purpose. A search of the www reveals other material combinations touted to be suitable for this purpose. My questions are:
1. Did the production 3000 have a heat shield of some sort between the muffler the and driver side floor? If yes,
2.What is a suitable alternative to the production part. If no,
3. What success have you had with aftermarket insulating materials in this really hot spot?
As always, thanks for the advice.
Cheers
 
Hi Jim,
Yes there was a stock heat shield for the later cars. There are a couple different part numbers depending on what model 3000 you have. See item #81 HERE I also have dimensions I drew up in PDF format that I can send you if you want to cut your own.
 
Jim, if you aren't to concerned about originality down there, have a look at what modern transportation appliances use for insulation above the catalytic converter. A cat will run dull red hot under power and are often located similarly to the Healey muffler.

Andy.
 
Greg
I have a 1960(mk1)BN7. The kits you referred me to do not appear to contain a shield for between the muffler and floor. The parts shown are the parts I have already installed. Does this mean the BN7 did not have a (muffler) shield when new?
 
Coincidentally, I just installed some heat shielding on my Nasty Boy today. I used a product made by Design Engineering consisting of an embossed aluminum face bonded to a composite fiberglass insulation. The fiberglass side has a self stick adhesive, making it very easy to fit. Because it's self-adhesive, it was very easy to do the front of the footbox as well. Best part is it's only 3/16" thick.

IMG_0196.jpg


It's available from Summit and the 42 x 48" sheet will allow you to do the driver's side floor and footbox as well as the inside of the transmission tunnel.


https://www.summitracing.com/parts/DEI-050503/
 
Jim_Newman said:
Greg
I have a 1960(mk1)BN7. The kits you referred me to do not appear to contain a shield for between the muffler and floor. The parts shown are the parts I have already installed. Does this mean the BN7 did not have a (muffler) shield when new?
Click to expand...
There is a kit (item#80) which is what I think you have. Item #81 is the exhaust shield. If you look at the diagram I linked to, you'll see the part in the bottom left corner. The engine campartment kit is higher up in the diagram, overlaying the hood. The part # I'm referring to is 021-776.
 
HI Greg, It seems that none of the kits identified as applicable to the 'BN7' cars have a muffler Heat shield
Included.---Keoke-???
 
AH it is OK!! them mossy lists is a bit confusing.----Keoke- :laugh:
 
I was able to buy the floor/muffler piece separately and it has been fitted to my car for decades now.
 
My 1960 BT7 did not come with a heat shield above the muffler. They were added at a later date than chassis 9985. I plan to add something there when I rebuild the car shortly.
 
I installed the DEI product a number of years ago as a replacement for the heavier stock heat resistant panels. I ran it under the exhaust, completely over the pedal box (positive side) and on the fire wall. My custom headers have been ceramic coated and the entire interior floor has the Cool It Thermo Tech product installed. I used to get blisters on my feet through my racing shoes before doing this now they stay nice'n cool. Also, during the 20 minute beak-in period after each race engine rebuild the headers glow "red hot" and header coating stays intact. https://www.finishlinecoatings.com/

Dougie
 
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