Catalyst Broke Loose - Tumbling Rocks

[Marccus]

'89 w/438K

When starting a cold engine, a get a racket of noise, like tumbling rocks, in a metal container.

When I crawled under the car when first started I heard the racket of noise coming from one of the catalytic converters.

I'm assuming that the catalyst broke loose from its bed or container and that is what is causing a racket.

When the engine is warmed up, you can hardly hear the noise, probably because once the catalyst expands from the heat there is less room for it to bang around.

I have a Performance Plus Y-pipe that is about 17 years old.

Can I cut old the damaged catalytic converter and weld in a new one?

Where can I purchase a new catalytic converter?

Thanks.

 

[St Louis SHO]

The converter used is a Magnaflow "carsound" brand. You can find one at any Magnaflow dealer, or FPS has them in stock. I had a rear one break as well. Welded a new one in and all was well, so yes you can replace it. :wave:

- James

 

[AREA 91]

Don't drive it that way. There is alway's a possibility that the pieces of broken "cat" can get sucked back up into the engine.

 

[Marccus]

Oops.





:booboo:





:asskick:


:banghd:


:shappens:


:sosad:












I have no choice but to drive it because I only have one car and there is no other way to drive to work.

But, and here I guess is the bad part, I no longer hear the "tumbling rocks" sound when I start it up - even from a cold start, when I always hear it. It used to be that only when the car warms up that the sound goes away almost completely.

I hope I am not screwed.

 

[St Louis SHO]

Well, if it still runs, dont sweat it.

 

[ycode90]

^^^x2

 

[Mrhappytuzi]

438k? daaaaaaaaaammmn