Rear manifold cat heat vent pipe

[trcm]

Inevitably perhaps, the paint is peeling off the black duct pipe which guides heat up to the roof vent from the rear manifold cat.

I could paint it I guess, but think it might just disintegrate if I remove it to paint.

Can anyone suggest somewhere I can buy a section of replacement pipe of the right diameter to replace this with?

[Bravo73]

Is this what you’re thinking of?

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F370782118423

[trcm]

Yes! Perhaps I can find one that isn't in gaudy orange though! 😆

[Bravo73]

Erm, black?

[trcm]

The black one is neoprene isn't it?

Not sure that would last long in the engine bay 😲

[electro_boy]

From the link it says the black is good for 200 degreesC.   Would that be good enough?

 

Quote

JJC Flexible Ducting Hose Neoprene Or Silicone Brake / Hot Or Cold Air Induction

 

 

 

JJC single layer ducting hose. Constructed from temperature resistant materials and features a wire helix to allow tight bends to be formed without kinking.

BLACK HOSE:

Single Layer Neoprene

Temperature Range: -50 Up To +200 Degrees C

RED/BROWN HOSE:

 

Single Layer Silicone

 

Temperature Range: -80 Up To +310 Degrees C

JJC ducting hose is the perfect solution for brake ducts, air intakes, cockpit ventilation and other low pressure / vacuum applications.

 

[trcm]

I think cats temps run at up to and beyond 500℉ / 260C, and though the air would be cooler than that, I'd like a bit more margin.

Edited December 4, 2018 by trcm

[AK70]

Some Evora Owners in Germany are using this:

https://www.cafiro.de/aluflexrohr-1-5-m-2-lagig-schwarz/product/?number=SMafrevfl80s

[Bravo73]

Looks good. 

If anyone ends up buying a 1m or 1.5m length, I would be interested in buying a short section. 

[Ratman]

hello,

I have a question about this pipe;

do you think that the air is going down to the cat during the ride or it work like a chimney when the car stops?

[Bruss]

1 minute ago, Ratman said:

hello,

I have a question about this pipe;

do you think that the air is going down to the cat during the ride or it work like a chimney when the car stops?

Chimney, to remove hot air.

 

 

[EGTE]

I got one of these:

Masterflex motorsport hose

Looks great and copes really well. They will do shorter lengths than listed.

[Alfa2Evora]

I fitted one of the JJC ones a few months back. Seems to be doing the job fine but the only thing grinding my gears is that its colour now clashes with my engine cover,  .

[trcm]

Well I didn't fancy the orange pipes, so I took a 7mm socket (screwdriver would have done too) to the jubilee clip...

 

and a 12mm socket to free the bolt holding the top of the pipe...

 

And I cleaned up the frayed plastic wrap on the pipe, and gave it three coats of matt black BBQ paint!

The camera flash didn't like the matt black, but I rather do. The paint coverage is much more even that this photo would have you believe, and it's a much darker black in real life. Maybe I should take another without the flash, oh well.

 

Edited March 24, 2019 by trcm

[Whitey]

 I  replaced mine with one from Revotec a few years ago, and it still looks like the pic attached