hi guys,

 

got the front exhaust changed for new one just over a week ago. at first it sounded quiet but yesterday it sounded like it was blowing in the same area.

 

just had a quick look on internet and most people are experiencing this too.

 

what are your thoughts on this?

 

many thanks guys 

took a few pictures of under the car and it seems a joint have come loose

 

https://i.postimg.cc/5yKx8f3q/IMG-4196-Medium.jpg

https://i.postimg.cc/qB1BPGTh/IMG-4197-Medium.jpg

https://i.postimg.cc/28Jk683C/IMG-4198-Medium.jpg

https://i.postimg.cc/HsjWd7YS/IMG-4199-Medium.jpg

https://i.postimg.cc/DwX2bkbL/IMG-4200-Medium.jpg

https://i.postimg.cc/1z1yGCpT/IMG-4201-Medium.jpg

Edited 28 March, 20215 yr by froggy8

Re-using that original clamp was very, very optimistic if a leak free system was intended. 

1 minute ago, Wino said:

Re-using that original clamp was very, very optimistic if a leak free system was intended. 

yeah i would have though t the mechanic would replaced it at the same time as changing the front exhaust  

would a big enough hole in the exhaust pipe effects the  idle?

is this the right part?

 

https://www.autopartspro.co.uk/hjs-1948539

 

its to connect the front exhaust pipe

5 minutes ago, froggy8 said:

would a big enough hole in the exhaust pipe effects the  idle?

I doubt it, that's well after both lambda sensors.

5 minutes ago, froggy8 said:

is this the right part?

 

https://www.autopartspro.co.uk/hjs-1948539

 

its to connect the front exhaust pipe

 

I think you need a 45mm one, measure the exhaust pipe outside diameter to be sure.

1 minute ago, Wino said:

I doubt it, that's well after both lambda sensors.

i want to try fix it myself, i have a dremel that i could use to grind the bolts/sleeve off then reattached it with some exhaust paste then i should be good to go?

 

need to make sure i get right part though.

Just now, Wino said:

 

I think you need a 45mm one, measure the exhaust pipe outside diameter to be sure.

thank you, will measure it first.

It's one of my least favourite under-car jobs, and the pros will surely be able to get the clamps cheaper than you can, and do it in far less time.  Possibly not the last place you took it though...

1 minute ago, Wino said:

It's one of my least favourite under-car jobs, and the pros will surely be able to get the clamps cheaper than you can, and do it in far less time.  Possibly not the last place you took it though...

yeah it was a mobile mechanic, he put in the new exhaust last week and when it started blowing this morning, i didnt know what it was so i asked him to have a look at it but he wanted 30 pound to come and have a look.  

 

ok i will ring about to get some quotes.

 

tank you again wino  

i maybe looking at this wrong..................but is it not the connecting part sheared off the next section of exhaust.....it's been "stressed" since fitting the new bit and has given up the ghost.

 

You need a new "next" section going back.

Edited 28 March, 20215 yr by UrbanPanzer

They butt end to end within the clamp if both parts are original design. Isn't it the sleeve that's snapped in half?  Will look at some more of the pics.

Edited 28 March, 20215 yr by Wino

Pretty sure the last few pictures posted by the OP show a massive hole in the exhaust? 

In between the two parts of the clamp. 

Yeah, cos the clamp isn't holding the ends together any more! 

On the plus side, looking at the last few pics I would say you have definitely found out why the new exhaust is loud 

 

If you are doing it yourself and have the right diameter tube clamp, assemble both pipes into the tube and make sure they are both sitting in the right place without hangers straining and without touching any bodywork/engine etc,, then tighten the two bolts evenly and check again the exhaust is all sitting where it should. If you don't do this then its possible to tighten things up when they are in the wrong place and then you get rattles if the exhaust touches something or failures if the exhaust routing is wrong or mounts distorted/strained.

my mechanic just gave me a quote of 80 pound to put the clamp on.

I would've thought your local tyre and exhaust place would do it for half that to be honest. 

1 minute ago, Wino said:

I would've thought your local tyre and exhaust place would do it for half that to be honest. 

yeah going to ring about tomorrow.

 

thank you again

what do you guys use as exhaust sealant?

14 minutes ago, froggy8 said:

what do you guys use as exhaust sealant?

 

I have gun gum somewhere in one of the sheds, it works fine, or it did when I last used it.

3 minutes ago, sepulchrave said:

 

I have gun gum somewhere in one of the sheds, it works fine, or it did when I last used it.

this:

 

https://www.ebay.co.uk/itm/Holts-Gun-Gum-Repair-Paste-Exhaust-Muffler-Silencer-Flexiwrap-Putty-Kit-200g/302596085713?epid=10011373895&hash=item467421d7d1:g:1G4AAOSwLDtfRlAy

 

thank you, will get that ordered, i think i have everything i need now.

 

 

If you do decide to have a go yourself please make sure the car is safely supported, and wear safety glasses or goggles. Otherwise you will get bits of rust in at least one eye and that is not enjoyable or wise.

the sleeve is cheap and so is the putty so makes sense doing it yourself and save some money, even better we get to learn more if doing it yourself.

 

yeah i do have some goggles somewhere.

The way I see it, for that hole to appear/happen, something more than a joining sleeve has failed, as said already, the pipe inside these joining sleeves should have almost butted up and these sleeves are extremely strong, it is only the 2 clamps that rust through.

 

So, again, as said earlier, it looks very much like the next section of exhaust has failed, I'm surprised that your mobile spanner swinger left your car in that state, advise your friends to avoid him and take that car to an exhaust place because that job looks like to be well out of the scope of a new joining sleeve and a tube/tub of Gungun.