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Technical Front exhaust mount

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Technical Front exhaust mount

Creepy Nick

Creepy Nick

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So, yet another problem.. here we go again

My 1.2 8v suddenly became very very throaty, Looked underneath to find this:



I got a quote of £380 by a local chain garage to repair which...sounds unbelievable. I was hoping somebody could point me in the right direct, as to how much this repair would be.
 
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It's an expensive repair because the front section of the exhaust has the catalytic converter in it. This is usually the most expensive component of the exhaust system. It removes carbon monoxide and some other molecules from the exhaust fumes.

It's not too difficult to do your self, you'll need a good socket wrench, a new catalytic converter manifold (about £150 - £200 off the top of my head), a new manifold gasket (about £2 - £5) and a new O-ring gasket (the rubber ring that creates a seal on the flange at the end of the pipe in the photo onto the flexipipe bit usually about £1).

A tube of exhaust paste wouldn't got a miss either so you can make sure it's totally air proof at the seal.

Basically you need to unbolt the old cati manifold from the front of the engine block, clean up the mating surface, put your new manifold gasket on, bolt on the new manifold to the engine block front and reconnect the pipe to the mid pipe underneath the car with the O-ring and the exhaust paste.

Get a Haynes manual. It will explain this better and with pictures.
 
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quaffle said:
It's an expensive repair because the front section of the exhaust has the catalytic converter in it. This is usually the most expensive component of the exhaust system. It removes carbon monoxide and some other molecules from the exhaust fumes.

It's not too difficult to do your self, you'll need a good socket wrench, a new catalytic converter manifold (about £150 - £200 off the top of my head), a new manifold gasket (about £2 - £5) and a new O-ring gasket (the rubber ring that creates a seal on the flange at the end of the pipe in the photo onto the flexipipe bit usually about £1).

A tube of exhaust paste wouldn't got a miss either so you can make sure it's totally air proof at the seal.

Basically you need to unbolt the old cati manifold from the front of the engine block, clean up the mating surface, put your new manifold gasket on, bolt on the new manifold to the engine block front and reconnect the pipe to the mid pipe underneath the car with the O-ring and the exhaust paste.

Get a Haynes manual. It will explain this better and with pictures.
Click to expand...

Thanks, I was not expecting that. Is it worth attempting to weld it back together? I'd like a repair on the cheap haha.
 
Creepy Nick said:
Thanks, I was not expecting that. Is it worth attempting to weld it back together? I'd like a repair on the cheap haha.
Click to expand...

Hmm, it's quite thin metal and it would probably go again. I don't know much about welding though so it might be worth waiting for someone else to have a look at this thread and advise you.

What is your exact model of Punto? Year, engine size, valve number etc.? I'll have a look and find a cheap new part if I can.
 
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quaffle said:
Hmm, it's quite thin metal and it would probably go again. I don't know much about welding though so I might be worth waiting for someone else to have a look at this thread and advise you.

What is your exact model of Punto? Year, engine size, valve number etc.? I'll have a look and find a cheap new part if I can.
Click to expand...

Fiat punto active sport mk2/b, 1.2 8v year 2004
 
Creepy Nick said:
Fiat punto active sport mk2/b, 1.2 8v year 2004
Click to expand...

Exhaust manifold (£98.40)

Manifold gasket (£3.48)

Down pipe gasket (£0.60)

Flange gasket (£0.84)

Total: £103.32 with free delivery

Remember exhaust paste too. About £5 - £7 from somewhere like Halfords.

EDIT: Can't stress how helpful one of these will be for you if you want to attempt it yourself: Fiat Punto Petrol (03-07): Amazon.co.uk: R. M. Jex: 5095349365960: Books Get it pre-owned for about £8. Check eBay too and you might find it even cheaper.
 
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The flange off the actual Mani-cat (manifold and cat in one)

Now you can do 1 of 2 things

A - Cut one off a knackered Cat - cut your and shut/weld onto yours
B - Get a Universal Fitting and again cut and shut
C - Try and reweld yours - Probably wont last tbh

Tbh - i'd be trying A / B, as long as you get a decent weld on it with decent prep you should be fine and good to go again


I've had them fail like yours has there - its a quick 5minute weld for a professional

I duno if you can mate 2 end of the middle pipe sections? As most all you'd need todo then is either weld 2 bolts on to become studds
OR
just do when you snap a stud - just a nut and bolt to clamp it up once its aligned


Ziggy
 
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Creepy Nick said:
Thanks, I was not expecting that. Is it worth attempting to weld it back together? I'd like a repair on the cheap haha.
Click to expand...


You'd still need to remove it but if you have the time and equipment there is no harm in welding it, might last another couple of years by which time you may have sold the car

Make sure before removing you mark the pipe and the flange so when off the car you can weld them back together in the correct orientation
 
Hoping for a successful repair tomorrow, since I don't fancy spending £150 for a replacement when I'm looking at selling it in 9 months.

Cheers for the part list above though :)
 
Same thing happen to me last month. But I didnt weld it back. I ve just bought new one, as my old one was nearly all rusty I thought its gonna be better to get new one. My mechanic said that he could weld it for 15 pound but that will be temp solution only.
 
Well I paid £40 for the worst welding job I've seen, but she lives!

Amn-sARapP1tS3VgkSYTPft5IrKegQjcGza3fZCu2UgY.jpg
 
I with him while he was doing it, didn't seem confident ;)

Either way I'm happy to avoid a replacement
 
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I had the very same problem in the same place and all! what I did was get a transmission jack and push it up into place then weld it in place. its tricky to get up the topside but its an easy fix if you have a mig
 
owenh said:
I had the very same problem in the same place and all! what I did was get a transmission jack and push it up into place then weld it in place. its tricky to get up the topside but its an easy fix if you have a mig
Click to expand...

In my imagination I am thinking a decent exhaust shop could have removed the flange welded a new pipe and oversized it, or welded the oversize required without oversizing it so it was then sleeved and clamped to the old thin and hard to weld existing pipe. Not a big job if you have the tools or pipes needed.

Probably even a DIY job if you have a place you can buy exhaust parts and you have the time to mess around endlessly painfully fiddling attempting to save money:eek: while thinking it is a useful work and a mans way of passing some time!

(That bracket held on the gearbox just visible in the second picture is a fiat part which i spent an entire day shopping around for and another day making out of parts to fit without stressing the expensive manifold part. Its probably about a tenner from Fiat? :eek: )
 
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