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Author Topic: Sports cat blockage  (Read 1105 times)

Offline Ash_89

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Sports cat blockage
« on: December 09, 2019, 09:47:03 am »
Morning guys

Ive recently had a look inside my old sports cat with a bore scope , was just curious if anyone else has see this inside theirs ? (the cat was assumed blocked)
sorry for the shocking image i know you can only just make out the strange bits inside this was taken just before the bore scopes batterys died

image of turbo side of the cat honeycomb face
,

Offline pudding

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Re: Sports cat blockage
« Reply #1 on: December 13, 2019, 06:30:58 pm »
Looks like your engine's been eating Marijuana!

The catalyst itself looks OK.  Fook knows what that green sh1t is, if not weed!

You can diagnose a bad cat with one of those infrared temp guns though.  The outlet temp should be a lot hotter than the inlet temp.  If the temp is the same at both ends of the cat, it's fooked.


2007 ED30 | 2009 TDI 140 | 2016 BMW 330D

Offline Ash_89

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Re: Sports cat blockage
« Reply #2 on: December 16, 2019, 09:27:58 am »
It has baffled alot of people mate haha , even miltek were confused as to what it actually is
to be fair i really need to get a better scope cam in there for some bright clear pics / videos
it was holding back nearly 30 bhp before i fitted a new downpipe ( pre stage 2+ at r-tech ) so its gotta be pretty bad .