Exhaust heat on rear brake line ?

[DanEC]

My SpinTeck mufflers have a rectangular cross section instead of oval, and as a result the driver side muffler, inside edge is falling pretty close to the brake line run to the rear brakes - about 3/4 inches clearance. Aggravating that is that the heat is going to get trapped up there between the frame rail and the floor pan. My mufflers are ceramic coated inside and out (not sure how they do that but they only have baffles and no fiberglass or steel mesh) so that will probably help some.

Think this is a problem? I haven't filled my brake lines yet so I could install some sort of an insulator tube over that area without too much difficulty. Has anyone seen a insulator tube for brake lines?

Thanks

Dan

[Tommy]

I don't recall the brand name, but I used a heat shield sleeve like this to protect the brake lines near the exhaust on my car.

[Rick Parker]

You can eve use somthing as simple as a couple of loose layers of Aluminum foil out of the wifeys kitchen.

[Gaz64]

You can fab a heatshield to fit area concerned and have it galvanised, just like a lot of factory heatshields.

Should reduce the temps by half.

[vector1]

i had some fire sleeve like aeroquip makes and was curious, so put some on a brake line i had laying around, took a heat gun and put it on the fire sleeve, til it was smoking, probably over 400 deg., and the brake line was still cold to the touch.

if in question easier to insulate now than later.

[strictlypersonl]

My Q&D method: Slit some silicone tubing lengthwise, slip it over the steel lines, and secure with metal ties or stainless steel wire if necessary. The latter might not even be required with the heavier (1/8") wall stuff. Just harder to put on.
McMaster: silicone tubing

Caveat... The covering may encourage the tubing to rust over the long term.

[DanEC]

Thanks for the ideas and links. The split silicone tubing may be the easiest since there are one or two tube mounting clips up there above the muffler and I don't know if I can get to them without completely removing the muffler and tailpipe on that sid - a step backwards I would like to avoid.

[tcrist]

You might even want to wrap your muffler in header wrap. It is designed to keep the heat in.

[DanEC]

Originally Posted by tcrist;1****51

You might even want to wrap your muffler in header wrap. It is designed to keep the heat in.

I have the mufflers ceramic coated and the floor pan coated in Lizard Skin ceramic coating. Plus two layers of sound deadner and insulation on the top side. Since the mufflers are very visible from the side, right below the rocker, I don't want to wrap them and have that show. Some sort of tube insulator for the brake lines sounds like the solution.

Thanks.

[68 Fastback]

I have used a Silicon-Coated Heat Sleeve (Fiberglass on the inside)from Thermo Tec. Looks great and easy to work with. You can get it for about half price from Circle Track Wharehouse in Mooresville, NC. 704-662-9570 They sale leftovers and used stuff from NASCAR shops. I love to take a long lunch and walk around

[Pete Munroe]

DEC,

I use Earls "Flame Guard" hose covering on the fuel lines in the engine compartment. Helps to plan ahead. Once the swivel fittings are installed you have to slit the fire sleeving and bind it up to get the sleeving on the line...

The smallest size for the hose covering I think is 3/8", pretty big for a brake line. Could do it, no one would see it, just would need to work around the small nylon clips/brackets that currently hold the tubing in place.

EARLS' also has a TAPE. Your brake lines are new, clean. The adhesive should stick well. Could wrap the brake lines with it in hot spots. Holley distributes Earls products.

Holley Performance Products Flame Guard Tape*731001ERL

Any inert tubing like the silicone Bob mentioned would probably be pretty effective.

Pete

[DanEC]

Thanks - I ordered some thick wall, heat resistant silicone tubing from McMaster and slit it and slid it over the line. With the heavy wall I think it will stay wrapped around the line without clamps or anything. I think it was rated for 450 deg which should be enough with my ceramic coated mufflers and about 3/4 inch air gap.

[Jaydee]

What would be the closest you can mount sidepipes to a fibreglass body?
I've got about 20mm, is that far enough?
JD

[DanEC]

Originally Posted by Jaydee

What would be the closest you can mount sidepipes to a fibreglass body?
I've got about 20mm, is that far enough?
JD

That's a little over 3/4 inch if I remember my metric conversion correctly. That is a little close but probably OK if you are not running lean and extra hot. But that is only a guess on my part.

You might be better off to post this as a separate post in the All Cobra forum section.