Author Topic: Anyone changed Whole Exhaust For their Jazz?  (Read 304 times)

zemax

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Anyone changed Whole Exhaust For their Jazz?
« on: December 14, 2017, 11:21:34 PM »
In last MOT,circa 1year ago, I had a leak in exhaust, I fixed it myself with just smearing the holes with the cheap exhaust paste and that did the trick to get through the MOT.. However few days ago, My back box just fell off while driving over a hump.. I bought another back box thinking I can just change it myself , Today I went to change it.. darn it... the middle section fell off with just a few touches to it as well, in Short= My whole exhaust system is just rotten  and everything needs changing including the cat section :(

-Is it possible to purchase the rest of the stuff I need and fully change it myself or do I need to bring it to garage to do it? I only have a Jack and a curb to drive it up so can't really get it up in the air very much... Has anyone done theirs themselves on the driveway?

-all of the screws are rotten through, I sawed off the back section screws to get them off, the rest of the screws= same story... I'm  now wondering If I or Someone will be able to remove the old cat from the exhaust manifold without messing the exhaust manifold  up since everything is so rotten?
Maybe anyone has had similar experience, how easy it was to change the whole system and get off all the old exhaust bits which comes after the manifold  connection?


-Also what's the going rate to bring it to the garage to change it? (labour only)



Jocko

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Re: Anyone changed Whole Exhaust For their Jazz?
« Reply #1 on: December 15, 2017, 07:11:07 AM »
I had the middle section drop off and as the cat flange was rusted solid I changed the cat as well.
I bought all the parts from my local Motor Factors. Middle box cost 30 with gaskets. Kwik Fit quoted 120. Plus a further 128 if they had to replace the back box as well.
The cat cost 85 with gaskets (exchange unit - I had to take the old one back), from same Motor Factors. A local back street garage charged me 50 to fit the system.

TG

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Re: Anyone changed Whole Exhaust For their Jazz?
« Reply #2 on: December 15, 2017, 11:47:03 AM »
Access to the cat flange bolts is not great if they need cutting, but with patience and a decent blade it can be done.  O2 sensor wiring is a nearby so gas might not be a good idea which puts off the fast fit garages.  My cat flange was very rusty, to the point the garage refused to touch it and quoted for a new cat as well as mid exhaust.  Lifted the driver's side up quite high at home with decent stands to make life easier and parked inside garage.  Would rather pay money than do it outside in winter without decent supports and time.

After fitting make sure rear and mid section still have a moving spring joint with donut washer between them or the lifetime will be greatly reduced.
--
TG

Jem

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Re: Anyone changed Whole Exhaust For their Jazz?
« Reply #3 on: December 15, 2017, 03:00:03 PM »
I have had my rear box fall of while driving home on the A11. I saw it rolling to the side of the road in the rear view mirror. That cost about 90for that to be replaced. Recently the mid section went at the joint with the newer back box. At the time of the back box being replaced they said it looked rusty but it could last another year so there was no benefit to changing it.
I just had the mid section done and it cost 65 to get that done.

So in real terms I don't feel it's too expensive to have a garage, who know what they are doing, replace my exhaust and fix it all in place properly. I would imagine that doing it yourself on a standard jack on the road would be very hard work and possibly very dangerous.


rogbro

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Re: Anyone changed Whole Exhaust For their Jazz?
« Reply #4 on: December 15, 2017, 05:21:55 PM »
Having almost the whole system falling off ( very very noisy ) on our last Jazz, decided to invest in a new one as soon as I bought this 12 plate EX.     Saw a Kwik Fit one..... Wouldn't have put it on a moped, every bend was flattened. So the pipe bore must have been severely restricted .  Fast Fit in Basingstoke made one one the car in stainless steel.
A real Work of art.

alfy

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Re: Anyone changed Whole Exhaust For their Jazz?
« Reply #5 on: December 20, 2017, 08:12:53 AM »
Replaced my middle and end sections yesterday. The gun gum that I applied for MOT test lasted a good 8 months. Being Winter I let an Independent garage do the work. 8 months ago when it started to leak I applied plus gas and copper grease in preparation to replace. I will do this on the new exhaust bolts for protection. The garage were able to replace sections without damage to the CAT. The back box was ok, but I had it replaced  anyway. Labour was 60+vat, parts were via Eurocarparts. For the hassle involved get 2/3 quotes from independent garages. On a different thread my rear wiper motor is playing up again, looks like the super glue I applied to the magnet is coming loose. Let me think 124.69+ vat from a  Honda dealer or second hand 3pin unit from a breakers yards? Merry Christmas.

zemax

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Re: Anyone changed Whole Exhaust For their Jazz?
« Reply #6 on: December 26, 2017, 03:11:58 PM »
I can report back that I changed the exhaust myself, that involved spending half a day creating a PROPER ramps from wood to drive the car up them to lift it really high (ramps were 35cm high). First I looked at the metal ramps you can buy- however Please don't use those craps and risk your life with them, all of them looked such poorly engineered crap which could fail at any time..Good ones start from about 70-80.. I made much better myself, much higher/wider and more secure as well..at least now I have a proper way to lift a car up for next times as well.


Than.. Took the whole exhaust off ,you really need to unscrew the screws from underside of the car for the CAT connector with the exhaust legs itself as the nuts are welded on the exhaust legs so it's just as easy as unscrewing them after a good overnight soak of wd40..I faffed around for some time to access them from the hood- until I realised they are welded on..so skip that!  , It was a real trouble to get the screws off from where the middle section/cat joins tho.. First I tried to remove them/saw them off while under the car -no luck... after I removed the Whole exhaust I spent a good hour with an angle grinder to grind them off properly and bang the screws out- Its not a job when you are under the car for sure! take all the exhaust off as that part is rusted beyond imagination...

Putting it back was suuuper super super easy, took maybe 15mins in total, the hard part was to get the rusted junk off the car. I re-used the cat so changed only the middle section 32 + rear 26  + gaskets/new bolts/screws -12  , so all in spent 70 . also make sure you copper grease or lubricate the rubber mounts as it makes so much easier to put them back on.

If you have a way to lift your car up securely - Do it yourself, it's really easy and fast once you know how and got enough socket extensions.




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