I'm guessing this isn't normal?

25th November 2011, 10:14

Well I haven't got any photos of it yet, but..

My exhaust has always been loud on my 1.0ltr saxo thanks to the previous owner, and after having a look it's basically this:

Surely there's something missing there? It's deafening on motorways doing 60mph and I've had enough of it.

If there is something missing there, what would I need altogether, and on average how much would it cost?

Cheers guys

25th November 2011, 10:18

looks standard. If it's loud then surely you got a hole somewhere?

25th November 2011, 10:19

no its correct lol.

On the mk1 you have a normal mani than a cat underneath and a backbox.

on a mk2 you have a mani cat and silencer underneath (iirc) than a backbox.

All mk1 1.1is ive heard sound a tad noisy.

either live with it or get a new car lol..

25th November 2011, 10:19

Quote:

Originally Posted by Manu

looks standard. If it's loud then surely you got a hole somewhere?

No holes, no after market filters, no blowing, nothing.

Looking in the haynes manual and it says that there should be an 'intermediate pipe' that acts as another silencer. I don't see it on mine, it's just one long pipe like the diagram?

25th November 2011, 10:21

Quote:

Originally Posted by John_G

no its correct lol.

On the mk1 you have a normal mani a cat underneath and a backbox.

on a mk2 you have a mani cat and silencer underneath (iirc) than a backbox.

All mk1 1.1is ive heard sound a tad noisy.

Ah okay, that explains some things.

This isn't normal though. I've known a few friends with 1.0ltr saxo's and they're silent. This is a bit of a joke to be honest :/ not sure what it could be..

The sound is definitely coming from the back box. The guy at the garage tried to put a standard back box on but it wouldn't fit in the pipe that's there. It ALMOST did but he said it's still a little too loose.

The thing is though, it all looks completely standard?

25th November 2011, 10:22

it will be the same system thats on a 1.1 tbh.

take a actual pic of yours but im positive thats how it is lol.

25th November 2011, 10:25

How does the backbox join to the centre section? Is it the standard 'O' Clamp?

Like this one; http://www.onlineautomotive.co.uk/Ci...ack%20Box.aspx ?

Btw nice tablet and pen.

25th November 2011, 10:25

Quote:

Originally Posted by John_G

it will be the same system thats on a 1.1 tbh.

take a actual pic of yours but im positive thats how it is lol.

I'll take it when I can. That's okay, if you say the Mk1 has a manifold > cat > back box then that's what I have, so that's fine.

In a nutshell - it's overly loud especially doing 60mph, louder than other 1.0's, it's all relatively new (the previous guy told me he fitted a new exhaust), it looks like the diagrams, noise is coming from the back box, no blows.

Is it possible that he's put a standard looking back box on the system with no silencer?

25th November 2011, 10:26

Quote:

Originally Posted by saxova

How does the backbox join to the centre section? Is it the standard 'O' Clamp?

Like this one; http://www.onlineautomotive.co.uk/Ci...ack%20Box.aspx ?

Btw nice tablet and pen.

Yup, pretty much! Augh what can it be?!

25th November 2011, 10:26

My guess is that it's been cut and slid into the centre pipe, and has a U clamp on it, which is leaking slightly

25th November 2011, 10:27

Quote:

Originally Posted by saxova

My guess is that it's been cut and slid into the centre pipe, and has a U clamp on it, which is leaking slightly

I'm not too sure on that. If I put my hand over the exhaust tip the car is completely quiet. If there was a leak elsewhere then surely it would still be noisy if I did that?

Keep trying though guys, I've been fobbed off with people going "Oh not sure sorry" so this is really helping

25th November 2011, 10:30

Quote:

Originally Posted by geraintthomas

I'll take it when I can. That's okay, if you say the Mk1 has a manifold > cat > back box then that's what I have, so that's fine.

In a nutshell - it's overly loud especially doing 60mph, louder than other 1.0's, it's all relatively new (the previous guy told me he fitted a new exhaust), it looks like the diagrams, noise is coming from the back box, no blows.

Is it possible that he's put a standard looking back box on the system with no silencer?

Possibly..

Take it off and shake it too see if the baffles are loose or just buy a new one. Cheap going by the link above^

25th November 2011, 10:30

If you like I'll post a photo and a video later on when I'm on my break. I can't promise much though, it'll just be idling (no one to rev it for me).

25th November 2011, 10:30

Hmm, I'd check how the back box connect's onto the centre pipe.

When you fit a new exhaust/backbox, don't you have to take it easy for abit so you don't 'burn' your baffles?

That's what i've heard, so if the previous owner didn't do that, maybe burnt the backbox baffles? Hence why it's not 'baffling' out the noise as much?

Just a thought

.

25th November 2011, 10:31

that pic looks fine to me mate. i'm still using my 1.1 system and its the exact same. it was a bit loud before because it was blowing at the join at the downpipe. i dropped the 16v in and blew a huge hole in the backbox so its still a fail haha

25th November 2011, 10:33

Quote:

Originally Posted by John_G

Possibly..

Take it off and shake it too see if the baffles are loose or just buy a new one. Cheap going by the link above^

Right, will do.

Like I said though, when I took it to the garage to fit another back box, his standard saxo one wouldn't fit my pipe. It was ever so slightly loose. Could this mean that the centre section is different (which may point to the noise coming from somewhere else, like the cat? No idea..) or could it just be a shit box he's tried to put on? I really appreciate the help though!

Quote:

Originally Posted by saxova

Hmm, I'd check how the back box connect's onto the centre pipe.

When you fit a new exhaust/backbox, don't you have to take it easy for abit so you don't 'burn' your baffles?

That's what i've heard, so if the previous owner didn't do that, maybe burnt the backbox baffles? Hence why it's not 'baffling' out the noise as much?

Just a thought

.

Could be, which relates to what John_G said. Good thinking!

25th November 2011, 10:34

The next logical explanation is that the silencer has no baffles inside. If they were loose or broken inside then it should rattle like a bag of spanners.

25th November 2011, 10:34

Quote:

Originally Posted by Manu

The next logical explanation is that the silencer has no baffles inside.

You mean inside the back box? Apologies, not that mechanically minded when it comes to exhausts.

25th November 2011, 10:46

Overall designed to push exhaust gases thhrough different compartments and tube and kill noise levels in the process.

25th November 2011, 10:57

Quote:

Originally Posted by Manu

Overall designed to push exhaust gases thhrough different compartments and tube and kill noise levels in the process.

Brilliant - that's been a huge help.

Just to clarify, you don't think that the noise would be coming from the CAT? The whole thing is brand new so it doesn't help to pin point where the noise is coming from.

If it's the back box he's either:

- Fitted one without a silencer
- Fitted one with faulty baffles

I just got confused when the garage couldn't fit a standard back box on, even though mine looks standard ¬_¬ his was a different size to mine so I wasn't sure if his was shit or mine wasn't standard.

Thanks a lot

25th November 2011, 11:03

if the cat had a problem, you would hear the noise from the front. The best way to pinpoint is to go round the car while a mate pushes on the throttle.

25th November 2011, 11:07

Quote:

Originally Posted by Manu

if the cat had a problem, you would hear the noise from the front. The best way to pinpoint is to go round the car while a mate pushes on the throttle.

Awesome.

Well the noise is 100% coming from the back box. It's quite unsettling when you're close to it. Putting your hand over it makes the sound go completely and it sounds normal.

So given that the garages 'standard' back box didn't fit on my car (sorry, this is the bit that confused me to what's causing the problem), you just think that they just tried to fit a shitty one?

Cheers bud.

25th November 2011, 15:41

Is your exhaust genuine or aftermarjet do you know?, I've known some aftermarket ones to make a totally different sound compared to standard originals and they dont always fit as nicely or have the same dimensions

25th November 2011, 15:44

Quote:

Originally Posted by geraintthomas

Ah okay, that explains some things.

This isn't normal though. I've known a few friends with 1.0ltr saxo's and they're silent. This is a bit of a joke to be honest :/ not sure what it could be..

The sound is definitely coming from the back box. The guy at the garage tried to put a standard back box on but it wouldn't fit in the pipe that's there. It ALMOST did but he said it's still a little too loose.

The thing is though, it all looks completely standard?

I`m baffled mate lol,but surely it`s a simple thing like your backbox has had it.That accounts for the noise.

25th November 2011, 15:54

Most likely Steve. Was just confused as the garage like I've said a few times now had tried to fit a standard back box on, and it didn't fit. Was ever so slightly loose.

It does sound like the back box though. I'll go to another garage, see what can be done!

25th November 2011, 15:55

Quote:

Originally Posted by stevo67

I`m baffled mate lol,but surely it`s a simple thing like your backbox has had it.That accounts for the noise.

Agree with stevo, but also you been going on about this for ages now. Weld the system up for any little blows or just replace it. But as people been saying they are loud anyway.

25th November 2011, 16:28

Quote:

Originally Posted by geraintthomas

Most likely Steve. Was just confused as the garage like I've said a few times now had tried to fit a standard back box on, and it didn't fit. Was ever so slightly loose.

It does sound like the back box though. I'll go to another garage, see what can be done!

Some backboxes are a poor quality fit,try one made by Bosal they supply Citroen with standard exhaust systems mate.

25th November 2011, 16:37

Quote:

Originally Posted by furio-cam

Weld the system up for any little blows or just replace it. But as people been saying they are loud anyway.

- The system is in perfect working order as said earlier, no blows
- I don't want to replace the whole system if I can pin point it
- It's not normal to be this loud, compared to other 1.0's - as said earlier.

This is why I've been going on about it for so long because people weren't listening. But after John and Steve explained about the baffles in the exhaust system, it's cleared a lot of things up and has helped me a lot.

..as said earlier.

Quote:

Originally Posted by stevo67

Some backboxes are a poor quality fit,try one made by Bosal they supply Citroen with standard exhaust systems mate.