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+--- Thread: the flange on my cat has corroded away, any ideas on what to do ?? (/showthread.php?tid=28947)
the flange on my cat has corroded away, any ideas on what to do ?? - jjenn20 - 26-01-2015
In need to fit my straight pipe but the flange on the cat has corroded off any ideas on what to do ?
RE: the flange on my cat has corroded away, any ideas on what to do ?? - Toms306 - 26-01-2015
Weld it back on...
RE: the flange on my cat has corroded away, any ideas on what to do ?? - jjenn20 - 26-01-2015
Weld the mid box to the cat ?
RE: the flange on my cat has corroded away, any ideas on what to do ?? - Toms306 - 26-01-2015
No, weld the flange back on to the cat. Or buy another cat.
RE: the flange on my cat has corroded away, any ideas on what to do ?? - cully - 26-01-2015
cut the mid-section with a slit and use a u bolt clamp im guessing the pipe still slides on the CAT but the flange is missing
RE: the flange on my cat has corroded away, any ideas on what to do ?? - Niall - 26-01-2015
And how do you propose welding rusted metal tom?
RE: the flange on my cat has corroded away, any ideas on what to do ?? - Toms306 - 26-01-2015
With a lot of weld.... I've seen some of the bodges people do on 306 exhausts.
RE: the flange on my cat has corroded away, any ideas on what to do ?? - Eeyore - 26-01-2015
er.... got a picture of this? If the flange has snapped you can probably sleeve it over but the dimension of the cat wont be right... youll knacker the centre pipe and the exhaust will sit back too far.
RE: the flange on my cat has corroded away, any ideas on what to do ?? - welshpug - 26-01-2015
Tom is right, just weld it back together and build up the thickness with some good beads, I did this to my cat as its an o.e item and its hard to get replacements for decent prices.
if its really rotten you can buy flanges on ebay that have 3-4" of pipe attached that you could weld to the cat after chopping the remains of the original outlet pipe off.
RE: the flange on my cat has corroded away, any ideas on what to do ?? - jjenn20 - 26-01-2015
Yeh its all corroded away I undid the clip on the clamp and half of the flange caved-in , Iv got a gti6 decat but thats to short, could I use the flange on this ?
RE: the flange on my cat has corroded away, any ideas on what to do ?? - RetroPug - 26-01-2015
(26-01-2015, 08:13 PM)welshpug Wrote: Tom is right, just weld it back together and build up the thickness with some good beads, I did this to my cat as its an o.e item and its hard to get replacements for decent prices.
if its really rotten you can buy flanges on ebay that have 3-4" of pipe attached that you could weld to the cat after chopping the remains of the original outlet pipe off.
I've got the same problem, I've got about 3/4 of a flange and it gets sealed with exhaust paste but it inevitably begins blowing and losing me midrange and making a lot of rasp right underneath me after a while.
If you're not sure what to do yourself I'm sure if you took it to an exhaust fabricators they could cut most of the outlet pipe off and weld a new one on and make a flange for you. It shouldn't really be particularly expensive either. I plan on doing this as I don't have a welder, but it's the faff of taking there that I've been putting off rather than cost.
RE: the flange on my cat has corroded away, any ideas on what to do ?? - Eeyore - 26-01-2015
yeh just take it to an exhaust place... they wil have dealt with crap like this before.
RE: the flange on my cat has corroded away, any ideas on what to do ?? - jjenn20 - 26-01-2015
Yeh I think Im gona do that should be cheaper than a new one