Exhaust paint?

I wouldn't waste your money. Most of the rust emanates from the inside where the acid and toxic fumes are. If painting the exhaust did any good people would do it.

Rob Graham

Nick Dobb ( snipped-for-privacy@ntlworld.com) gurgled happily, sounding much like they were saying :

Pissing in the wind.

They rot from the inside out, not the outside in.

temperature-wise,

Don't bother, just avoid using your car for short journeys (to avoid the exhaust rotting from the inside), don't get the thing MOT'd at a place which does exhausts (otherwise you might find it mysteriously starts blowing come MOT time) and replace the thing when it drops off.

Life's too short to be cleaning rust off and painting an exhaust.

/john (Pug 306, OE exhaust lasted 7yrs 3 months, and cost £155 for the full system)

The message from "Rob graham" contains these words:

I did once see a Scrote some old flatcap had undersealed /completely/. Everything. Every single part inboard of the lip of the sill had been painted with thick black sticky underseal. The exhaust was surprisingly well covered - perhaps he only did short trips.

The message from "John Kenyon" contains these words:

My Audi's the factory original, 13 years and 240,000 miles. The bloke in the tyre shop reckoned stainless is the worst thing for the exhaust business!

Guy who looked at it today reckoned diesel exhausts tend to last longer - true or false? Never heard that one before.

I also had a guy in work say it was worth the money to get OE exhaust, rather than some cheap motor factor make or whatever KrapFit would put on it, because it would pay for itself in longer life. Fair comment?

Cheers guys.

Nick Dobb ( snipped-for-privacy@ntlworld.com) gurgled happily, sounding much like they were saying :

True - but they're still not immortal.

Yup.

My '91 200SX has an OEM system on it, I can't swear it's the original but it's been hanging in there so long I now suspect it is. It's not stainless. It looked to be on well on it's way to being used up when I got the car in 2000, since then a bracket has broke off the cat, the heat shields have had to removed from the middle and back box as they were about to fall off. I've been promising myself a stainless system for ages but not until I've had the full value out of this one. I think the slow decay rate is due to a daily 10.5mile trip to work on roads that don't have holdups, so it actually gets fully warm and doesn't hold water/acid.

-- Peter Hill Spamtrap reply domain as per NNTP-Posting-Host in header Can of worms - what every fisherman wants. Can of worms - what every PC owner gets!

Kwik Fit will throw it on for under £20. The paint would probably cost you close to that. Just make sure you don't feel the urge to accept credit to buy shock absorbers or brakes you don't need!

No not really as most are made by only a few companies. It depends on what quality you want and can afford.

Sadly they (and others) want £70 just for the back box. Just to buy myself from GS&F it's £33.

how come I can *see* a whole shedload of rot on the outside, even.

The rule of thumb that ICI offer about Hammerite to retailers is that if you can put your hand on the item and keep your hand on it while it is operating then you can use it. Any hotter and it is not suitable.

Perhaps. I have been disappointed with the noise and "unfit" of a cheaper alternative on my Cinquecento. I took it back a couple of times to have it refitted and it was always noisier. That's quite something on a noisy car too... :)

That's £70 without fitting? Or all in? Tight, though... The known brand places I tried when I needed a customer-supplied back box fitting all refused.

Basically - because the composition of the metal is not the same. This causes little electrochemical cells to form, and corrosion to set in - bootstrapping the whole corrosion process.

The margin on parts supply probably being better than the margin on the fitting cost.

/john

That has to be a troll, surely no one could be that stupid?

And how many compensation claims have resulted from that little gem of advice?!