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Originally Posted by scribby
Hi, I have a 1989 Toyota Camry SV21, I've been Google'in this alot lately, My Catalytic Converter has a piece broken inside and when the car gets hot and I accelerate it sounds terrible rattling around in there. So my only option is to get a new one or to gut the Catalytic Converter and replace it later with a high flow one when I have the money.
From what I can see there is no O2 Sensor after the cat so I think I would be pretty save gutting it and putting it back or putting a straight pipe through.
From what I have read gutting it would increase preformance? Has anyone here done this?
I may be attempting this tommorow, is there any bad side effects of removing the Catalytic Converter?
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It's funny you bring this up.
I gutted my cat about two months ago and I couldnt be any happier.
The car is definately peppier....especially on the highway!
There's no bad effects, in fact, it's
better for the engine!!......less backpressure = a happier easier running engine(and it's
not too much less where your actually hurting the low-end power)
I usually gut the cats out of all the cars that Ive owned....where I live, it's quite easy to get away with it on the older pre-ODBII vehicles.
It's pretty easy to do, but a bit messy. you do it from underneath,
NOT from the top!
First thing you do is remove the O2 sensor from the top(when gutting the cat, it's easy to damage it with the tool your using to gut it), it's only held on by two screws.
You then jack the car up and undo the three nuts (spray them with liquid wrench and let it soak in beforehand)that hold the flex pipe to the cat(dont fret if one, two, or all three studs come off with the nut).
Then undo the bracket that holds the flex pipe to the bracket. Now carefully pull the flex pipe off of the 3 studs protruding from the cat. Move the flex pipe to the side and with a long type of screwdriver or pipe and hammer(I also used a cordless drill with a long masonary bit, it's it's not neccassary), start banging away. Be patient, it can be frustrating getting some of the chunks out.
Also there's a metal screen inside and these two metal rings inside.
The screen can easily be pulled out with plyers, but the rings are trickier. Just pull and pull and bend the rings enough and work it from side to side rapidly and break the rings and then pull them out.
On a side note, the only Gen2 Camrys with
after-cat O2 sensors are the California cars.
Good luck and let us now how it went
Remove Catalytic Converter?
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