• The Roadster Factory Recovery Fund - Friends, as you may have heard, The Roadster Factory, a respected British Car Parts business in PA, suffered a total loss in a fire on Christmas Day. Read about it, discuss or ask questions >> HERE. The Triumph Register of America is sponsoring a fund raiser to help TRF get back on their feet. If you can help, vist >> their GoFundMe page.
  • Hey there Guest!
    If you enjoy BCF and find our forum a useful resource, if you appreciate not having ads pop up all over the place and you want to ensure we can stay online - Please consider supporting with an "optional" low-cost annual subscription.
    **Upgrade Now**
    (PS: Subscribers don't see this UGLY banner)
Tips
Tips

securing heat shields

robolab

Senior Member
Country flag
Offline
[FONT=&quot] How can I fasten the new heat shields in the engine compartment and under the main floor when the floor sheets were renewed and no nuts are riveted on the ordered sheets? Additional it was necessary to saw off the old screws in the compartment.[/FONT]

[FONT=&quot]In the catalogs of the relevant spare parts suppliers no corresponding rivet nuts are listed[/FONT].[FONT=&quot]

Does anyone have an idea? [/FONT][FONT=&quot][/FONT]
 

Patrick67BJ8

Obi Wan
Silver
Country flag
Offline
How can I fasten the new heat shields in the engine compartment and under the main floor when the floor sheets were renewed and no nuts are riveted on the ordered sheets? Additional it was necessary to saw off the old screws in the compartment.

In the catalogs of the relevant spare parts suppliers no corresponding rivet nuts are listed.

Does anyone have an idea?
Go to John Simms web site for info I posted doing the same thing "captive nuts". I used T-nuts that were 10-32 threads, flattened the 4 barbs and inserted them into very snug holes I drilled. From the exterior of the insulation panel you can't tell the difference.
www.healey6.com
 

Keoke

Great Pumpkin
Country flag
Offline
I plan to silicone seal the T-nuts to insure water tightness.--- -That was neat maybe a bit of JB Weld will insure that the nuts do not loosen due to vibration and will also make them water proof
 
Country flag
Offline
Nutserts (or Rivetnuts) would also be a suitable method: https://www.pegasusautoracing.com/productselection.asp?Product=655

More: https://www.pegasusautoracing.com/group.asp?GroupID=HARDNUTSERT

There may be cheaper sources for both the threaded inserts and the installation tools (like an industrial supplier) but I love these things and I think half the stuff on my Healey is held together with them. To a lesser degree, I've also used them to replace captive fasteners on BMWs.

Edit: found these too: https://www.pegasusautoracing.com/productselection.asp?Product=MS21059 These could be either epoxied or riveted into place.

MS21059.JPG
 

RDKeysor

Jedi Trainee
Bronze
Country flag
Offline
I visited the healey6.com site suggested by Patrick, and I must say it is an exceptional source of info. As the site offers a dimensioned drawing for a heat shield for installation above the muffler, it is suggesting that a proper heat-resistant material is available for do-it-your-selfers who may not choose to buy a pre-cut shield from one of the usual sources. Does anyone know of an appropriate material source? I should mention that the drawing, as I remember, did not list a thickness for the "asbestos" shield described at the site. Also, should the shield be mounted in full contact with the metal floor, or spaced away from it. Randy's suggested fastener would appear to assume some spacing between the shield and the floor.
 

Patrick67BJ8

Obi Wan
Silver
Country flag
Offline
I visited the healey6.com site suggested by Patrick, and I must say it is an exceptional source of info. As the site offers a dimensioned drawing for a heat shield for installation above the muffler, it is suggesting that a proper heat-resistant material is available for do-it-your-selfers who may not choose to buy a pre-cut shield from one of the usual sources. Does anyone know of an appropriate material source? I should mention that the drawing, as I remember, did not list a thickness for the "asbestos" shield described at the site. Also, should the shield be mounted in full contact with the metal floor, or spaced away from it. Randy's suggested fastener would appear to assume some spacing between the shield and the floor.
The material used now or should I say was used was Hardie Board. However, the color is now preprimed in a pastel yellow. I purchased my complete insulation kit from BCS, British Car Specialist, and it is a bright white similar to the original color and is from the UK and called Master Board. Spacing is important and usually a 1/4" will do as per the original insulation. Use 1 1/2" squares cut from the board and place a 1/2" hole in them. Glue them with adheisive to the insulation panel. Toms Import Toys has a Insualtion panel that attached above the muffler, below the florboard, that claims a significant amount of cockpit temperature reduction.
 

CessnaTPA

Jedi Hopeful
Offline
Go to John Simms web site for info I posted doing the same thing "captive nuts". I used T-nuts that were 10-32 threads, flattened the 4 barbs and inserted them into very snug holes I drilled. From the exterior of the insulation panel you can't tell the difference.
www.healey6.com

I'm in the process of collecting materials for the heat shield install and wondering what the advantage of captive nuts over using a fender washer, lock washer and a nut?
 

Patrick67BJ8

Obi Wan
Silver
Country flag
Offline
I'm in the process of collecting materials for the heat shield install and wondering what the advantage of captive nuts over using a fender washer, lock washer and a nut?
Think of the nut on the inside of the floorboard(your method), instead of the outside(as original and recessed due to the 'hole" in the spacer insulation), and you'll see "bumps" in the carpet.
 

CessnaTPA

Jedi Hopeful
Offline
Think of the nut on the inside of the floorboard(your method), instead of the outside(as original and recessed due to the 'hole" in the spacer insulation), and you'll see "bumps" in the carpet.
That makes sense, plus less hardware to drop.
 

Patrick67BJ8

Obi Wan
Silver
Country flag
Offline
That makes sense, plus less hardware to drop.
It's also a good time to have those thick washers zinc or cad plated to finish off the job nicely. I had mine cad plated & baked with a bunch of other parts so it was cost-effective. The screws should be the posi-drive ones if you're going for complete originality. I used the originals and had them cad plated but I also bought a stainless steel selection from BCS and I used most of those in the engine compartment to keep everything "shiny".
 

andrea

Jedi Knight
Country flag
Offline
That makes sense, plus less hardware to drop.
Don't forget one simple modification that increase a lot the driver comfort (feet temperature) AH project never insulate the pedals zone of LHD cars- one simple panel add, that are very useful
https://picasaweb.google.com/112770...dMayJune2013?noredirect=1#5626281281308008706
I have used one piece of material that in Italy was named "Ceramic insulation" - Not dangerous and efficient. used on stove application
the place where the panel is placed is one of the more exposed at high temperature, see the thermal photo
https://picasaweb.google.com/112770...ALEY10061958?noredirect=1#5369038515512638146
also insulation ribbon was added to the exhausts pipes
https://picasaweb.google.com/112770...dMayJune2013?noredirect=1#5717210010154678386
A commanded MOD for hot sun lands
 
Similar threads
Thread starter Title Forum Replies Date
nevets Condenser Securing Screw Austin Healey 14
K TR2/3/3A Securing new brake disc to the front hub? Triumph 4
drooartz MGB Securing MGB to a trailer MG 6
S Securing the jack with strap in BJ8 boot Austin Healey 11
RAC68 Source - Metal Clips for securing Convertible Top and/or Seat Covers Austin Healey 11
T Securing the Tonneau on a 3000 MkII Austin Healey 4
D BJ 8 Float Bowl securing bolt loose Austin Healey 6
GTP1960 TR2/3/3A Securing Door handle shaft Triumph 3
Bob_Spidell Securing Front Hub Bolts Austin Healey 8
R TR2/3/3A Securing the front fender beads Triumph 11
Editor_Reid Securing Bugeye Fiberglass Bonnet Spridgets 15
sjuengst Securing the top of the windshield frame Austin Healey 17
J Securing Springs For Convertible Top MK II Austin Healey 5
P Air filter securing mod Austin Healey 11
ekamm Securing the cockpit side fuel tank closeout Triumph 2
S TR2/3/3A tr3 glove box securing bracket Triumph 4
T Some info on front Brake Drum Securing Screws Spridgets 5
timbn2 engine securing points to engine stand??? Austin Healey 18
I Sourcing Core plugs in UK & securing windscreen Austin Healey 11
HealeyPassion Reducing Muffler Heat Austin Healey 2
steveg Heat Shields Austin Healey 17
K TR2/3/3A Can heat from exhaust downpipe ..... Triumph 2
V heat shield Triumph Classifieds 7
EWD TR6 Sound/Heat Mat installation - 74 TR6 Triumph 14
M Heat-related carb issue on BN1 Austin Healey 7
EWD TR6 ‘74 TR6 Interior - Padded dash and heat/sound material Triumph 4
AH67 Heat Shield finish 66 Type Jaguar 5
J Bj8 intake manifold to heat shield to carb gaskets Austin Healey 4
BLong63AH Moss Supplemental Heat Shield Austin Healey 2
E BJ8 Seats, Exhaust Hanger, Heat Shield Locations in Floor Austin Healey 7
K TR2/3/3A Revington alternator heat shield. Triumph 0
60TR3A Is It Safe to Heat My Garage All Winter While I Am In Florida? Austin Healey 34
K TR2/3/3A DIY Alternator heat shield>>> Triumph 2
L 100/ Moss Heat Shield Austin Healey 2
wangdango Keeping the heat out? Austin Healey 11
DornTRoriginal TR2/3/3A Heat Shield Issues Triumph 6
T TR4/4A Tips on controlling heat coming up through shifter opening? Triumph 14
GTP1960 TR2/3/3A Carb. Heat shield location? Triumph 11
C Correct color of carb heat shield, starter, and generator? Austin Healey 12
T TR2/3/3A Fuel line heat shield Triumph 39
NutmegCT heat valve control cable Other Cars 0
MikeAH100M FYI - Hardie Board for Heat Shields not Recommended Austin Healey 9
H The heat shield for the Longbridge between the exhaust manifold and carbs Austin Healey 1
69mgbgt No cabin heat in my 1997 jaguar xj-6 Jaguar 1
I Spitfire If you can't stand the heat.... Triumph 7
J Side exhaust heat shield Austin Healey 23
M Making a manifold/carb heat shield - any suggestions? Spridgets 14
T TR4/4A Heat shield for tranny cover Triumph 4
R Heat Shield Detail Austin Healey 3
KVH TR4/4A Carburetor Heat Shield for HS6 SUs Triumph 4

Similar threads

Top