• Hi Guest! Being a Paying Supporter is NOT a requirement to participate at BCF. However, subscribing will help ensure we can continue to serve the LBC community for years to come. If you enjoy BCF and find our forum a useful resource...Please consider supporting us by **Upgrading**
    (PS: Subscribers don't see this banner)
Tips
Tips

Making a manifold/carb heat shield - any suggestions?

MGNoir

Jedi Hopeful
Offline
I'm eying my so-so heat shield (and the large crack in it) and contemplating making a new one out of stainless.

Any advice on how to set up that top bit that holds the throttle cable? I wondered about cutting the top part off the original and adding it to the new one.
 

Jim_Gruber

Yoda
Country flag
Offline
They are available in stainless from Ashley Hinton. Search on E-Bay for Ashley Hinton and you will likely find one advertised. Top quality parts he makes.
 
OP
M

MGNoir

Jedi Hopeful
Offline
Oh I'm sure I can buy one :smile:, but this is a time vs money vs creativity vs access to metal shop at work deal. I've already created a few stainless replacements for other, much simpler things (like that little bracket that goes up and provides said heat shield support).

The challenge is that little offset it makes at the top where the cable is supported - which looks stamped out in mine.
 
OP
M

MGNoir

Jedi Hopeful
Offline
So basically here's the piece...

heatshield.png
All of it I can make w/o issue, except for that little part with the red around it. Specifically it's got a kind of indent to it. Creating that indent is the hard part.
 

Rut

Obi Wan
Gold
Country flag
Offline
I don't think that indent serves any purpose other than adding strength to the area. These things are notorious for cracking due to stress and vibration. I always thought it interesting that they went to great lengths to create a heat shield and then bolted it to the exhaust manifold.
Rut
 

Pythias

Jedi Knight
Country flag
Offline
I thought that stainless was a no-no due to its heat retention properties.... ?
 

nomad

Yoda
Offline
MGB's had, what I suppose was, asbestos on the back of theirs. Wondering what would be a good substitute for that now.

As to the piece that you can't fabricate, I imagine you could cut it out and rivet it to the stainless. That should add even a little more strength.

Kurt.
 

Spridget64SC

Jedi Trainee
Offline
Suggestion:
Center drill a 1/4" bolt. Drill a little "cup" into the head of the bolt to receive the end of the throttle cable. Use two nuts to hold into the lip of the heat shield you bend over/attach. The bolt length above and below the bend and be used to help adjust throttle cable slack. This method has also been used to substitue for idle adjust screws. A 5/16" bolt can be used instead of the 1/4" if more "meat" is desired in the component. Can be made with a stainless bolt to match the heat shield.

Mike
 

Griz

Jedi Hopeful
Offline
Stainless is more prone to vibration cracking than mild steel. If you go with stainless go with thicker gauge material. Also, Nomad, you can use 1/4" backer board (used to line shower walls before tile is applied) from the usual home hardware stores as a replacement for asbestos. I used it for the heat shields on my BJ7.

Griz
 
OP
M

MGNoir

Jedi Hopeful
Offline
Good suggestions all. I like the idea of drilling out a bolt and putting it up there. Not just a handy way to make the part but adjustable to boot.

And good to know about the vibration crack issues. My current (not stainless) one has a crack in the middle perhaps from that.

My real motivation here is to cut back on rust and such. My poor Midget sat idle for about 4 years outside and a lot of stuff shows it. Not like "rusted lump" level but more, "I bet this used to look really nice" level.
 

Jim_Gruber

Yoda
Country flag
Offline
Ashley has this done already. Don't reinvent the wheel go get out and drive. Driving these cars is more fun than constant tinkering although I love the problem solving challenges I have more fun top down and driving.
 
G

Guest

Guest
Guest
Offline
Ashley has this done already. Don't reinvent the wheel go get out and drive. Driving these cars is more fun than constant tinkering although I love the problem solving challenges I have more fun top down and driving.


If he aint got it fixed by now he aint worried about road time.
 
OP
M

MGNoir

Jedi Hopeful
Offline
I cleaned up and painted the existing one with a silver/gray manifold paint - looks great. Some of us don't have deep pockets to just buy all the shiny stuff, but we have access to raw materials and tools to make 'em. Hence my interest in making.
 
Similar threads
Thread starter Title Forum Replies Date
K TR2/3/3A Making your own steering wheel stator tube? Triumph 16
PAUL161 Making your own tools [Sometimes] Restoration & Tools 4
H Making a '73 Midget into a '63 Midget Spridgets 2
matmire gonna try making some wind wings. Spridgets 13
Jim_Gruber Generator and Polarity - Making sure Generator is Polarized Correctly Spridgets 13
D 69 E-Type sputters when making left hand turn Jaguar 6
Got_All_4 TR2/3/3A I'm making my own door panels and .... Triumph 11
T TR4/4A Making Miata seats in a TR4a look more "right" Triumph 4
tomshobby General TR making it easy to lube door hinges Triumph 0
drooartz Making [tiny] progress Spridgets 14
Lukens TR2/3/3A Water pump bearings making noise... time to replace Triumph 9
J TR4/4A Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help? Triumph 70
T TR4/4A Making an OD pressure gauge - any tips? Triumph 7
7 Post-War Other Back to making progress Triumph 5
glemon Restoration Vs. Making it Go Restoration & Tools 14
drooartz MGB Making some progress with the doors MG 5
J Rear wheel cylinders over extending ??WHY?? Making a mess fluid everywhere!!! Austin Healey 54
G How do I know I am making the right decision? Jaguar 7
AN5Sprite Making room Spridgets 0
J Making Room Triumph 2
RickB Who can guess what I'm making? Spridgets 37
G Oil Change after Storage - Part 1 - making a mess Austin Healey 0
Darrell_Walker Making a wire wheel tubeless? Triumph 45
Aggudabbu Making some progress Spridgets 5
glemon Making Strombergs Richer Triumph 22
F Are the russians making a hybryde .... Other Cars 0
hondo402000 Making your Avatar Pic Triumph 14
Sarastro Tool for making bubble flares on brake lines Restoration & Tools 14
M_Pied_Lourd Making Progress Triumph 314
Jim_Gruber Vroom Vroom Bugsy is making good sounds once again Spridgets 6
G Making a faux roll bar into a real roll bar Triumph 2
RickB OT: talk about making a Spridget Hybrid? Spridgets 0
D Spitfire Need help making my Spit 1500 a little more fun... Triumph 24
drooartz Making more calls today Spridgets 6
T Making a steering wheel Austin Healey 41
DNK My 6 is Making Me Frustrated Triumph 10
Stewart Making progress finaly MG 7
T Making straight cuts & smooth edges for patches Triumph 5
George Zeck Making good progress ..... Spridgets 11
7 Making progress finally Triumph 1
G Still making the covers after 30+ years Triumph 0
healeyboz Making the switch to Spridgets 19
drooartz Making a dashboard Spridgets 28
S I'm making it WORSE! HELP! Triumph 15
G Making my winter maintenance checklist Triumph 11
KLUTZ MGB-GT Making progress on the GT MG 14
S Rear end creaking [making me crazy] Triumph 6
H I found the gremlin which was making the noise Austin Healey 10
PAUL161 Still Making Progress !! *DELETED* *DELETED* MG 4
PAUL161 Making Progress, I think ?? MG 14

Similar threads

Top