Exhaust Bracket.....snapped again!
Discussion
Morning all!
Right then, it was only 3 weeks ago that I got the little bleeder welded up and then yesterday the sodding thing snapped again, not on the welds but actually just a clean snap across the metal bracket itself.
Can anyone shed any light on what this bracket actually does? the one I'm talking about is the adjustable strap on the near side which fixes the silencer to the exhaust pipe exiting the rear turbo.
Having now snapped (apart from the scraping noise of the bracket itself) nothing seems any worse off i.e. the exhaust isn't banging on the body work, it's all still suspended on rubber bushes etc so hopefully isn't straining any other part of the system (?).
So, apart from causing me grief - does this strap / bracket have a vital function or can I do away with it completely!?
Cheers,
Simon
P.S. i promise i'll post a thread that isn't 'problem related' soon - 5 weeks of ownership and i still can't stop smiling!
Right then, it was only 3 weeks ago that I got the little bleeder welded up and then yesterday the sodding thing snapped again, not on the welds but actually just a clean snap across the metal bracket itself.
Can anyone shed any light on what this bracket actually does? the one I'm talking about is the adjustable strap on the near side which fixes the silencer to the exhaust pipe exiting the rear turbo.
Having now snapped (apart from the scraping noise of the bracket itself) nothing seems any worse off i.e. the exhaust isn't banging on the body work, it's all still suspended on rubber bushes etc so hopefully isn't straining any other part of the system (?).
So, apart from causing me grief - does this strap / bracket have a vital function or can I do away with it completely!?
Cheers,
Simon
P.S. i promise i'll post a thread that isn't 'problem related' soon - 5 weeks of ownership and i still can't stop smiling!
Simon, you must get it re-welded asap as it takes off all the strain from the manifold. The exhaust will crack on the out sid eof the rear turbo if you don't get it fixed, then you'll need a new system.
If you take it to a dealer who are used to sorting these, they'll put you on a new stronger bracket and weld it on good and proper with plates.
Kerridges did mine after it snapped and its been fine for 18 months since.
HTH
#
G
If you take it to a dealer who are used to sorting these, they'll put you on a new stronger bracket and weld it on good and proper with plates.
Kerridges did mine after it snapped and its been fine for 18 months since.
HTH
#
G
Simon, as Greg says it IS required so needs fixing! All M12's and M400 are fitted with this notorious 'chocolate bracket' as standard. It is a poor design by the South Africans - designed to take the strain AND move, it fails miserably and Noble should have re-designed it a long time ago. I am on my 5th 'fix'.
All you can do is get it re-welded and also seek out a dealer fix (as Greg says some last - but many do not!). I'm now sporting a chunky extra bracket at the base/side of the silencer box that reduces the strain on the top bracket (a Mole Valley fix) - but this has caused other issues and I'm now ordering a new silencer!
All you can do is get it re-welded and also seek out a dealer fix (as Greg says some last - but many do not!). I'm now sporting a chunky extra bracket at the base/side of the silencer box that reduces the strain on the top bracket (a Mole Valley fix) - but this has caused other issues and I'm now ordering a new silencer!
Thanks Gents, I'll get it welded asap and then try and get it modified/strengthened at the next service.
So, as a matter of interest, how much is the Roush system, and what are the benefits besides the lack of chocolate bracket? (point me to the relavent thread if this is old news!)
Cheers,
Si
So, as a matter of interest, how much is the Roush system, and what are the benefits besides the lack of chocolate bracket? (point me to the relavent thread if this is old news!)
Cheers,
Si
There are a number of aftermarket exhaust systems available.
The standard exhaust if rubbish. If you can afford it, replace the system.
All of the replacement systems reduce the heat on the inner turbo by moving the cats to the rear of the car.
Also the materials used to build the exhaust are of a higher quality and tend to handle vibration better.
1) Rousch. As stated above, and has been well received by the owners who have it fitted. Not sure if it's a fully stainless system, but as far as I know it has been ceramic finished to avoid heat soak back into the engine bay.
2) VeganTune. This is a fully stainless system. It's a different design to the Rousch system. The two banks exit into one silencer. There are schools of thought both for and against this method.
Note, it is possible to fit this to a 2.5L engine, but requires changing the turbos from T24's to T28's. Not a trivial change, I'm currently testing this on my car and have some issues.
3) noblemods. It's the same design as the rousch. It's made by Hayward and Scott. A very well regarded exhaust manufacturer.
I think they also do a 2.5L exhaust too.
4) Plans. Not sure if they are still making an exhaust system, but it falls into the same design as the Rousch and the noblemods design. Paul Cundy has one fitted to his M12 race car.
Get some advice before you buy one. And be aware that Noble do not support any after market market exhaust systems.
--Jools
The standard exhaust if rubbish. If you can afford it, replace the system.
All of the replacement systems reduce the heat on the inner turbo by moving the cats to the rear of the car.
Also the materials used to build the exhaust are of a higher quality and tend to handle vibration better.
1) Rousch. As stated above, and has been well received by the owners who have it fitted. Not sure if it's a fully stainless system, but as far as I know it has been ceramic finished to avoid heat soak back into the engine bay.
2) VeganTune. This is a fully stainless system. It's a different design to the Rousch system. The two banks exit into one silencer. There are schools of thought both for and against this method.
Note, it is possible to fit this to a 2.5L engine, but requires changing the turbos from T24's to T28's. Not a trivial change, I'm currently testing this on my car and have some issues.
3) noblemods. It's the same design as the rousch. It's made by Hayward and Scott. A very well regarded exhaust manufacturer.
I think they also do a 2.5L exhaust too.
4) Plans. Not sure if they are still making an exhaust system, but it falls into the same design as the Rousch and the noblemods design. Paul Cundy has one fitted to his M12 race car.
Get some advice before you buy one. And be aware that Noble do not support any after market market exhaust systems.
--Jools
obes said:
Where's it got to with the being too noisy for trackdays thing ?
It seems to be dependant on a number of variables.
1) Cat removal. The car will make more noise without cats installed. I know that the vegantune and the Rousch can have a 'straight through' pipe fitted which replaces the pipe with the cats. Not sure about the others.
2) Reving the engine over 5K. Depending on the wind direction (no I'm not kidding) and the location on the track of the sound pickups, you may or may not exceed the track db limit.
I've read something about some tail pipes for the rousch to help with noise at track days, but I'm sure some one will fill us in.
--Jools
mgbond said:
Plans told me that the 2.5 doesn't have this bracket issue.
Is this true?
Bondy
Is this true?
Bondy
The original 2.5L exhaust, which exited through the diffuser was just as bad as the 3L system.
As J says, many were replaced with the equally rubbish 3L system. I did however have fewer failures with original 2.5L system, than the 3L system which replaced it.
--Jools
Thanks for all the info guys - i'll look into a replacement when the original really starts to hack me off (next 4 weeks at this rate!)
In the meantime I'm gonna drop it down to a local garage to get it welded up whilst I fabricate something more substantial.
Question - when welding one of these things is there anything electrical on the car that needs diconnecting? - don't want anything getting lunched!
Sorry if this is a daft question!
Si
In the meantime I'm gonna drop it down to a local garage to get it welded up whilst I fabricate something more substantial.
Question - when welding one of these things is there anything electrical on the car that needs diconnecting? - don't want anything getting lunched!
Sorry if this is a daft question!
Si
Simon,
As a few have already said, get it done sooner rather than later. Mine went a week after getting the car, and although I fixed it within a few hundred miles, the flange that bolts (the exhaust) to the rear turbo sheered off immediately afterwards.
FYI all - I took that to a professional tig welding place, and it's been good as gold ever since. Saved a packet on a new exhaust.
As a few have already said, get it done sooner rather than later. Mine went a week after getting the car, and although I fixed it within a few hundred miles, the flange that bolts (the exhaust) to the rear turbo sheered off immediately afterwards.
FYI all - I took that to a professional tig welding place, and it's been good as gold ever since. Saved a packet on a new exhaust.
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