CAT to middle pipe fitting

[atl]

Seems like every toy i buy has the exhaust botched...
Mine is currently blowing from where the cat meets the middle pipe. It has a rather rusty bracket holding them together and was blowing from the top part.

Surely this isnt meant to just press up against eachother to make an airtight seal?! Do i need exhaust paste or is there a better way?
Cant stand farting about with exhausts

 

[N4TH4N]

High temp silicone is usually used to seal part or sleeving the joint by cutting off that olive joint and welding a small . pipe onto it

 

[guysy]

As above : http://www.halfords.com/motoring-tr...-premium-silicone-copper-gasket-maker-sealant

Paste just cracks.

 

[Diagro]

As above : http://www.halfords.com/motoring-tr...-premium-silicone-copper-gasket-maker-sealant

Paste just cracks.

I'm going to get some of that myself. Exhaust keeps blowing the Paste out haha

 

[atl]

Looks like this is the thing to do then!

I thought you had one of those gauze flange bits in between! 😊

 

[Amos91]

I'd seriously recommend spending a little bit of money on this getting the rubbish olive join removed once and for all.

The usual specialists and most exhaust places will be able to cut that off completely and weld a sleeve on. Have a search as many have had this done (including me).

Like this with a clamp on it:

 

[atl]

I will do, i need a new middle section for my KTR system (that also doesnt sit right at the rear!! Right tailpipe is in the bumper and the left sticks out?!)
The whole thing has been cut a little bit short i believe. But i need to sort the blowing to drive it until i get that sorted.

 

[JPJ89]

Bit of a bump on this one, in need of some exhaust silicone myself...is this pretty much the same stuff below? Searched for the copper stuff above but seems to be discontinued for some reason!

http://www.halfords.com/motoring-tr...99-premium-silicone-grey-gasket-maker-sealant

 

[M.C..]

Bit of a bump on this one, in need of some exhaust silicone myself...is this pretty much the same stuff below? Searched for the copper stuff above but seems to be discontinued for some reason!

http://www.halfords.com/motoring-tr...99-premium-silicone-grey-gasket-maker-sealant

I have used bathroom silicone on my Focus ST in the past as I run out of high temp stuff and it was fine and that was on for 2 years

 

[R3k1355]

You can get high temp stuff from Screwfix or Toolstation, it's rated to 300 deg max and 250deg continuous so pretty good.
It's what people use to seal stove pipes and such.

 

[JPJ89]

Much cheaper than halfords stuff I'm guessing? Il take a look in screw fix...interesting about the bathroom stuff, held up ok with the heat I take it then? Just don't want to be re-doing it again and again, read all the stories about paste crumbling away after no time at all and having to reapply, hoping to avoid that with the silicone :smile:

 

[Diagro]

Im going to use some JBweld Red silicone. WIll report how that goes

 

[M.C..]

Yeah it was fine and that was on a mapped 2.5 5cyl turbo so it produced a fair bit of heat.
I would try and use high temp stuff but if you are stuck it works

 

[R3k1355]

Much cheaper than halfords stuff I'm guessing?

Yes and no, the price is around the same - under a tenner.
buy you do get a whopping great big tube of it.

 

[JPJ89]

Yes and no, the price is around the same - under a tenner.
buy you do get a whopping great big tube of it.

Right enough mate, halfords offering doesn't look like it would stretch far. Will have a nosy in screw fix tonight, cheers

 

[Matt e]

http://www.eurocarparts.com/mobile/...es-sealants/quick-gasket/?545771591&0&cc5_139

 

[1812lsd]

http://www.pure-motorsport.co.uk/details.php?itemid=252&model=6

 

[LeeRS]

Ive just had mine done, had it sleeved and welded to the cat. No more blowing and sounds 100x better.

 

[JPJ89]

Plenty to choose from then, cheers lads top stuff :up:

 

[Mescelin]

Does anyone know the size of the clamp needed for this cat to middle pipe flange? Am I right in think it's 50mm?

 

[1812lsd]

Does anyone know the size of the clamp needed for this cat to middle pipe flange? Am I right in think it's 50mm?

Depends on what size exhaust pipe you have. If you are talking about the olive clamp though, it is this one: http://renaultpartsdirect.co.uk/products/Renault-Clio-182-Exhaust-Clamp-(Centre).html

 

[Mescelin]

Standard cat to a Scorpion centre section..

 

[1812lsd]

Standard cat to a Scorpion centre section..

If it looks like the one in OP's picture, then check link in my above post.

 

[Mescelin]

Cheers!