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Just thought Id let you guys know.. Today I had my exhaust off and noticed all this stuff blocking my cat converter, luckily I managed to poke it all out with a screwdriver.

It looked a bit like honey comb and Im sure it wouldnt be good for exhaust flow. Just thought Id give fellow SAU members the heads up, I guess you need to check these things!

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https://www.sau.com.au/forums/topic/414333-cat-converter-maintainance/
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It looked a bit like honey comb and Im sure it wouldnt be good for exhaust flow.

That is what the Cat Convertor is - a honeycomb that acts as the catalyst...

So you've effectively "gutted" your CAT by the sound of it, so it's not no longer a CAT - It's just a piece of pipe...

I really hope this is some kinda joke...

Whoops!

Words like, "poke", "stuff", "screwdriver", "maintenance", "pipe", "flow", "blocking" are about to...

prompt response words like...

"illegal", "rofl", "crazy", "defect", "rich", "knucklehead" as well as "whoops"

Now that I've got my breath back, can I ask you if you've been running rich? And I mean really, really rich?

A little bit of knowledge - or in the case, no knowledge - is a dangerous thing.

The honeycomb is supposed to be there - it's the catalyst that does the job of converting - hence the name "catalytic converter" - the noxious exhaust gases (NOx, SOx, etc) into more environmentally friendly compounds.

How did you think the honeycomb got there if it was not meant to be there? It doesn't exactly look like your regular carbon build up...

A bee went up through my exhaust and formed a colony, so I've been told :yes:

Tis summer, and the Metallic European Wasps are out.

Beware that your replacement metal catalytic converter doesn't arrive with the honeycomb wasp nest inside - that sort of 'blockage' is harder to remove before instal!!

jk

dont know about maintenance as such but ive read that you dont expose the cat to unburnt fuel, leaded fuel, overheating (can melt the substrate)coolant and probably heaps of other things i cant remember, all the above can lead to a blocked or collapsed cat

dont know about maintenance as such but ive read that you dont expose the cat to unburnt fuel, leaded fuel, overheating (can melt the substrate)coolant and probably heaps of other things i cant remember, all the above can lead to a blocked or collapsed cat

Also big screwdrivers and too much poking

Also big screwdrivers and too much poking

ha ha! yeah, there is heaps of aftermerket hi flow cats on the market that its not worth the agro if you are caught with a gutted cat

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