Muffler repair problem
in [Aussie Drivers]
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From: Warren Smith on 30 Jul 2010 22:33 After 12 years and over 100,000 miles the tail pipe on my old clunker sprung a hole. I took it to Midas for a new tail pipe, the rest of the exhaust pipe is still in good condition. After only 2 months or 1500 miles the new tailpipe sprang a new leak! I took the car back and Midas welded up the problem. Now 8 months later the tailpipe has a new leak. Back I'll go on Monday. Any ideas on where the problem is? Faulty material or have Midas used pipe too thin for the job or whatever? Also, any suggestions on where to go in Sydney to get an exhaust pipe fitted that will actually last more than one year? Comments much appreciated Regards Warren Smith warren.smith(a)aol.com.au
From: F Murtz on 31 Jul 2010 00:11 Warren Smith wrote: > After 12 years and over 100,000 miles the tail pipe on my old clunker sprung > a hole. I took it to Midas for a new tail pipe, the rest of the exhaust pipe > is still in good condition. > > After only 2 months or 1500 miles the new tailpipe sprang a new leak! I took > the car back and Midas welded up the problem. Now 8 months later the > tailpipe has a new leak. Back I'll go on Monday. > > Any ideas on where the problem is? Faulty material or have Midas used pipe > too thin for the job or whatever? > > Also, any suggestions on where to go in Sydney to get an exhaust pipe fitted > that will actually last more than one year? > > Comments much appreciated > > Regards > > Warren Smith > warren.smith(a)aol.com.au > > > Do the exhaust in stainless and it will probably see the car out.
From: Scotty on 31 Jul 2010 00:12 "Warren Smith" <warren.smith(a)aol.com.au> wrote in message news:i3024q$gj9$1(a)news.eternal-september.org... : After 12 years and over 100,000 miles the tail pipe on my old clunker sprung : a hole. I took it to Midas for a new tail pipe, the rest of the exhaust pipe : is still in good condition. : : After only 2 months or 1500 miles the new tailpipe sprang a new leak! I took : the car back and Midas welded up the problem. Now 8 months later the : tailpipe has a new leak. Back I'll go on Monday. : : Any ideas on where the problem is? Faulty material or have Midas used pipe : too thin for the job or whatever? : : Also, any suggestions on where to go in Sydney to get an exhaust pipe fitted : that will actually last more than one year? : : Comments much appreciated : : Regards : : Warren Smith : warren.smith(a)aol.com.au : : : : Any exhaust shop that can do customer systems. They are not always more expensive either. My local exhaust shop did a system cheaper than a non genuine one from the chains!!' They fit a walker muffler and used seom pretty decent pipe as well.
From: Jason James on 31 Jul 2010 00:35 "Warren Smith" <warren.smith(a)aol.com.au> wrote in message news:i3024q$gj9$1(a)news.eternal-september.org... > After 12 years and over 100,000 miles the tail pipe on my old clunker > sprung a hole. I took it to Midas for a new tail pipe, the rest of the > exhaust pipe is still in good condition. > > After only 2 months or 1500 miles the new tailpipe sprang a new leak! I > took the car back and Midas welded up the problem. Now 8 months later the > tailpipe has a new leak. Back I'll go on Monday. > > Any ideas on where the problem is? Faulty material or have Midas used pipe > too thin for the job or whatever? > > Also, any suggestions on where to go in Sydney to get an exhaust pipe > fitted that will actually last more than one year? > > Comments much appreciated The only thing I can suggest, is that there are steel and steel used in exhausts. The cheaper grade steel looks different in that it is usually thicker, softer, but rusts/corrodes easier than the thinner OEM stuff. Light aircraft use a similar looking steel on their headers ie thin but corrosion resistant. Probably a Nickel or Chromium steel. Jason
From: John_H on 31 Jul 2010 01:03
Warren Smith wrote: >After 12 years and over 100,000 miles the tail pipe on my old clunker sprung >a hole. I took it to Midas for a new tail pipe, the rest of the exhaust pipe >is still in good condition. > >After only 2 months or 1500 miles the new tailpipe sprang a new leak! I took >the car back and Midas welded up the problem. Now 8 months later the >tailpipe has a new leak. Back I'll go on Monday. > >Any ideas on where the problem is? Faulty material or have Midas used pipe >too thin for the job or whatever? The reason tailpipes fail first is because they run cooler than the rest of the system. Corrosion caused by condensation on the internal surfaces is what does the damage. The problem is exacerbated if the manufacturing process stretches the metal on the outside of the bends. If that's where yours is failing find another supplier who uses a different bending technique. Cheapskate manufacturers also use lighter gauge tubing than they should... it needs to be at least 1.5mm for a reasonable service life. Even shonkier manufacturers don't use the correct material. Proper exhaust tubing is aluminised (and is sold by steel merchants as exhaust tubing). It costs slightly more than plain mild steel tubing and lasts considerably longer. -- John H |