Exhaust flexi thing

hogweed · 30th December 2014, 12:52

The garage says mine's on the way out... is No 1 in the picture what I need?

Thanks

maxxpump · 30th December 2014, 14:26

its either # 1 or #2 as it depends which one it is?

I think on the OEM part there is a flexi on the front of the cat and if thats gone there needs to be some welding done or you might need a new whole cat, which is quite expensive!

ceetdm · 1st January 2015, 20:50

Quote:

Originally Posted by hogweed

The garage says mine's on the way out... is No 1 in the picture what I need?

Thanks

The part that is actually marked with the 2 is the catalytic converter, the part just in front of this is the flexi joint. The flexi joint is welded in place on original exhausts but a clamp on version can be bought on ebay here

I've never fitted this part but will check on Monday if it can be done easily, as I have an original, used, catalytic converter downpipe.

Tommy :-)

jonathan63 · 1st January 2015, 22:33

You can buy a new flexi from exhaustparts.co.uk for less than £30.
You can get a clamp on one or a weld on one.
You will need to cut the old one out.
Be careful to order the correct one with the right diameter pipework to fit over your down pipe and exhaust pipe.

Arctic · 2nd January 2015, 09:02

Quote:

Originally Posted by hogweed

The garage says mine's on the way out... is No 1 in the picture what I need?

Thanks

It should look something like this, depending if you still have the original one on, this is an after market one

hogweed · 2nd January 2015, 09:05

Quote:

Originally Posted by Arctic

It should look something like this, depending if you still have the original one on, this is an after market one

Cheers Arctic – could this being flaky account for the thump-thump-thump I get under the car sometimes when I try and reverse too slowly and almost stall (presumably the exhaust flapping about and banging on something), or is that likely to be something else?

jonathan63 · 2nd January 2015, 09:11

Quote:

Originally Posted by hogweed

Cheers Arctic – could this being flaky account for the thump-thump-thump I get under the car sometimes when I try and reverse too slowly and almost stall (presumably the exhaust flapping about and banging on something), or is that likely to be something else?

The noise sounds more like the bottom engine mount is shot. If so that will have knackered your flexi pipe. You need to make sure you have a good bottom mount before fitting a new flexi otherwise you are wasting your time.

The noise and banging could also be a failing DMF though. Id go for the bottom mount first. Its the most likely.

hogweed · 2nd January 2015, 09:22

Quote:

Originally Posted by jonathan63

The noise sounds more like the bottom engine mount is shot. If so that will have knackered your flexi pipe. You need to make sure you have a good bottom mount before fitting a new flexi otherwise you are wasting your time.

The noise and banging could also be a failing DMF though. Id go for the bottom mount first. Its the most likely.

Already replaced. It's the exhaust banging, I'm sure of it.

T-Cut · 2nd January 2015, 09:49

The ceramic element used in the OEM catalytic converters is known to detach from the case. It then starts to rattle like a brick in an oil drum.

TC

whitevanman · 2nd January 2015, 10:02

Quote:

Originally Posted by T-Cut

The ceramic element used in the OEM catalytic converters is known to detach from the case. It then starts to rattle like a brick in an oil drum.

TC

It can also partially block the exhaust, on the V6 we had it gradually got worse and worse until the car would go no faster than 35mph, stuck a new one on and all back to normal.

If you have a V6 with good Vis motors and it's still sluggish i'd be looking here (not applicable to op I know)..

30th December 2014, 12:52	#1
hogweed I really should get out more....... Vauxhall Insignia CDTi; MG TF 135 Join Date: Jan 2010 Location: Norn Iron Posts: 2,958 Thanks: 942 Thanked 378 Times in 297 Posts	Exhaust flexi thing The garage says mine's on the way out... is No 1 in the picture what I need? Thanks __________________ Past cars: MGB GT; Escort 1300 Sport; Vauxhall VX4/90; Marina Coupe TC; Celica ST (1972); Montego Turbo; Astra GTE 16V; Astra GSI 16V; Golf GTI 16V (Mk II); Sierra XR4x4 Estate; BMW 325i (E30); BMW M3 3.0; BMW M3 3.2 Evo. Left some of the more embarrassing ones out. And about 30 motorbikes.

30th December 2014, 14:26	#2
maxxpump Posted a thing or two Rover 75 CDT Join Date: Aug 2014 Location: Brighton Posts: 1,786 Thanks: 215 Thanked 244 Times in 205 Posts	its either # 1 or #2 as it depends which one it is? I think on the OEM part there is a flexi on the front of the cat and if thats gone there needs to be some welding done or you might need a new whole cat, which is quite expensive! __________________ Mods done: 160 upgrade, EGR bypass, Viton "O" rings, Fitted 16" unions, cleaned manifold, uprated air filter, fog lights, better bulbs, upgraded ICE and full speaker set up. Last edited by maxxpump; 30th December 2014 at 14:30.. Reason: I feel i was being a bit of a ** and I appologise!*

1st January 2015, 22:33	#4
jonathan63 This is my second home CDTi Conniosseur SE HLNav Tourer and a Personal Line CDT Conniosseur SE Tourer..for the time being. Join Date: Jul 2010 Location: Cumbria Posts: 3,639 Thanks: 340 Thanked 423 Times in 294 Posts	You can buy a new flexi from exhaustparts.co.uk for less than £30. You can get a clamp on one or a weld on one. You will need to cut the old one out. Be careful to order the correct one with the right diameter pipework to fit over your down pipe and exhaust pipe.

2nd January 2015, 09:49	#9
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,752 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	The ceramic element used in the OEM catalytic converters is known to detach from the case. It then starts to rattle like a brick in an oil drum. TC