What are the symptoms of a dead catayst. I am losing power at the top end
and there is a smell of burning . There is also a rattly noise at about 5000
revs.

"TurboJo"  wrote in message
news:_sydnQcvy_MtomvfSa8jmw@karoo.co.uk...

> What are the symptoms of a dead catayst. I am losing power at the top end
> and there is a smell of burning . There is also a rattly noise at about
5000
> revs.


Not so much a dead cat, more of one that is beginning to break up and block
the exhaust. Initial symptoms will be loss of power at wide throttle
openings, and a very hot exhaust system pre cat.

Drop the cat off at the downpipe and peer into it. You can remove the O2
sensor if convienient, and go for a quick road test, but invariably they are
seized and a nightmare.

Tim..

Cheers

I will investigate next weekend.


"Tim.."  wrote in message
news:dd5h5k$kja$1@nwrdmz03.dmz.ncs.ea.ibs-infra.bt.com...

>
> "TurboJo"  wrote in message
> news:_sydnQcvy_MtomvfSa8jmw@karoo.co.uk...
> > What are the symptoms of a dead catayst. I am losing power at the top
end
> > and there is a smell of burning . There is also a rattly noise at about
> 5000
> > revs.
>
> Not so much a dead cat, more of one that is beginning to break up and
block
> the exhaust. Initial symptoms will be loss of power at wide throttle
> openings, and a very hot exhaust system pre cat.
>
> Drop the cat off at the downpipe and peer into it. You can remove the O2
> sensor if convienient, and go for a quick road test, but invariably they
are
> seized and a nightmare.
>
> Tim..
>
>

The ceramic honeycomb affair inside the Cat had rotated and the exhaust
gases were being restricted.

Put a new Cat on and performance is back to normal.

Thanks for the advice.



"TurboJo"  wrote in message
news:-u6dnYE5-KD342vfSa8jmA@karoo.co.uk...

> Cheers
>
> I will investigate next weekend.
>
>
> "Tim.."  wrote in message
> news:dd5h5k$kja$1@nwrdmz03.dmz.ncs.ea.ibs-infra.bt.com...
> >
> > "TurboJo"  wrote in message
> > news:_sydnQcvy_MtomvfSa8jmw@karoo.co.uk...
> > > What are the symptoms of a dead catayst. I am losing power at the top
> end
> > > and there is a smell of burning . There is also a rattly noise at
about
> > 5000
> > > revs.
> >
> > Not so much a dead cat, more of one that is beginning to break up and
> block
> > the exhaust. Initial symptoms will be loss of power at wide throttle
> > openings, and a very hot exhaust system pre cat.
> >
> > Drop the cat off at the downpipe and peer into it. You can remove the O2
> > sensor if convienient, and go for a quick road test, but invariably they
> are
> > seized and a nightmare.
> >
> > Tim..
> >
> >
>
>