AH11980

Hey peoples, this moring going to work i did my routine walkaround the car , and saw something fishy.My catalytic converter has a small hole in it , so when its cold like today -17C (15F i think), the fumes come out of two places instead of one (my tail pipe lol). need your help,guys , you think i could patch it up since its not a major hole , or just change the whole exhaust? I mean it not like its ruining my car , but i want to keep my max for at least two more years . Thanks guys

Greeny

iTrader: (43)

There is not any patch stuff i know of that will stand up to the cat heat...I would just replace the cat....

seenoz

Try some J-B weld. If it doesn't work then oh well. You will be changing the cat any way.
SEE NO Z

Greeny

iTrader: (43)

It will not work...The catalytic converter under normal conditions will reach temperatures of about 1200 degrees,over 2000 degrees when raw gas is introduced...jb weld is good for 500 degrees constant....

bhunter

iTrader: (3)

Explain how you do a normal daily walkaround of the car and even SAW your cat, let alone a hole in it??

Greeny

iTrader: (43)

He might be really short....

internetautomar

iTrader: (30)

he saw the exhaust leaking.
I've seen it too on my old one.
it wasn't leaking from the cat, but from the gasket area between the cat flange and the pipe flange (made obvious by the black soot)

AH11980

well up here in CANADA it can get VERY COLD, so when its around 15F outside and you start your car , the fumes out of your exhaust will make a nice cloud, and when you have TWO clouds of vapor/exhaust around your car instead of a single on ethen you get on you hands and knees to check under the car. hope that helps

VEvolution

There is something out there that can resist the heat. A teacher of mine in tech school awhile back brought his Altima in so the students can work on it, and his exhaust had a few holes in it being covered by some type of foil. When he showed me this, he explained about it and everyone was stunned after a good laugh. I didn't care too much at the time, but now I wish I payed attention. I do remember him sayin it resists the heat just fine, and he got it at Home Depot. Damn, I wish I could remember...

AH11980

at Fedex we use the 3M sticky foil to temporarly patch up small dings and rips in containers, its great stuff, but im not sure if it would stand up to the heat. ill have to ask around

P.S a roll of that stuff is like 50$

vansskaterfreek

iTrader: (14)

you cant patch it!!!!! get a new one... plus you mind as well get a whole new exhaust

AH11980

btw did you fix everything up on your Max since your last wipe out? hope all is good Vans

max89_v6

Yup, it's commonly known as the "flex piece" in your exhaust. Your exhaust should also sound louder when you accelerate, or even make a whistling noise. Mine had a leak like that, and a new "flex piece" (with labor) cost around $300.

Cliff Clavin

iTrader: (11)

screw that. You can just buy a warpspeed y-pipe for about $200 (stainless is $250) and the new design eliminates the flex section all together. The older style would fully replace it.

If it is just your cat that is rotted out, you can get a high flow one for $100 or less if you shop around.

VEvolution

........

max89_v6

...or modify it to have no cat at all

Cliff Clavin

iTrader: (11)

Yeah, I have a warpspeed test pipe I use when I race. However, I don't have to have my car inspected or go through emissions. I think most people do have some kind of testing in order to get their car licensed.

AH11980

the small hole is really at the cat, the flex pipe is ok ,not amazing, but ok. i have an appointment at the exahust repair shop tomorrow, the mechanic is hooking me up with the whole new exhaust system, flex pipe, cat, muffler the works for about 350$ CAN plus labour

vansskaterfreek

iTrader: (14)

yup.. all is fixed and it drives and runs better than ever!