406oc.co.uk

My exhaust flexi section's had a slight leak for about a year now, but changing it involves a new cat or chopping out the flexi bit & welding in another. Neither option was too attractive, replacement cat minimum cost £130 + fitting, welding in a repair section would have to be done within millimeters of the upstream temp sensor, so I sat on the fence for ages.......

Now that the de-FAP business is sorted, I'm 99.9% sure it doesn't care about the temp sensors or diff press sensor anymore, (up & downstream temps are always 752 degrees & d.p. is always 0 mBar). I therefore summoned up the courage to go for the welded repair cos I'm a tight-fisted sod. Just had to wait for a spell when I could spare the car for a day or two.

Whipped the cat/fap assy off, got a repair section which I think I got ripped off a bit for - £40. Friend of a friend welded it in for me for £25, so it's ready to refit. Then the whole business will be concluded forever or will it? After some deliberation, I decided the cat's gotta go, that way it's definitely not going to block up as the one on my Xsara did TWICE, (albeit at 85k intervals).

Cat element was surprisingly easy to drill / break out - whole process was about 15min.

Now it's all ready to go back on as soon as the weather permits, (some pratt converted his garage into a kitchen).

Pics soon........

Be interesting to see if this has any further effect on the beast.

I don't believe this, you've converted your 2.2 from a temperamental ditherer to a 180bhp mega torque busting, no turbo lagging, tarmac muncher. All for the price of a night out

As far as I know the CAT on a diesel helps reduce CO and NOX emissions (not smoke) so I hope it will stay within limits for an MOT

I guess we'll only know come MOT time, although from what I've read it should pass with ease.

dogslife wrote: Be interesting to see if this has any further effect on the beast.

Oh yes indeedy

Well it's back together and running again.

I'd psyched myself up for a real battle trying to lift the cat/fap box back into place with it up on axle stands, but I wiggled it into place in about 5 mins. Another half hour or so finished it off and no leaks. Guess we did a good job of maintaining the same overall length / angles etc.
Been for a quick run, all seems fine. Initial impression - it drives the same as before, (but without the exhaust leak).

Oh and it smells like a diesel, rather than a chemical works.

I bet you can open up some enormous gaps from the car behind when you plant your foot.......

.....they'll now be able to smell the scent of getting 'Pwned' by an old geezer in a 406 too

Welly wrote:I bet you can open up some enormous gaps from the car behind when you plant your foot.......

With 236 lb/ft. a standard one does that pretty convincingly

.....they'll now be able to smell the scent of getting 'Pwned' by an old geezer in a 406 too

Adds a whole new meaning to being 'smoked'.