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Model specific boards => Golf mk3 => Topic started by: funkyfive on 16 August 2009, 20:29

Title: Decat Issues
Post by: funkyfive on 16 August 2009, 20:29

I had my decat fitted today by a mate and as i was driving home i decided to boot it!

Since then the blow is coming from the sleeve that joins the cat back system to the decat.

I have used some exhaust gum and have tighten the sleeve but it is still blowing.

Any ideas?

Title: Re: Blowing Exhaust
Post by: Mikester on 16 August 2009, 22:17

If you have sealed it, are you sure its blowing from there. Sorry to sound stupid.

Title: Re: Blowing Exhaust
Post by: Wayne on 16 August 2009, 23:34

Exhaust past will not seal that area as it gets to hot and falls out, further back is ok.

Title: Re: Blowing Exhaust
Post by: funkyfive on 17 August 2009, 06:51

I checked the downpipe to decat and thats sealed ok, the rear box to centre pipe is ok, its defo the sleeve that joins the centre pipe to decat. My mate thinks its a knackered sleeve after speaking to him yesterday evening and says a new one will cost around £17. TBH it was blowing from there when the old cat was on but it seems strange that its gone. Its just two pieces of metal and to clamps???

Title: Re: Blowing Exhaust
Post by: funkyfive on 20 August 2009, 06:51

Sleeve has been changed and it looks like the problem is the decat itself. My mate thinks it could be the gases echoing in the middle of the pipe. He also thinks that it might choke up after time.

So should i replace the decat with a decat from ebay (http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&Item=220442738394&Category=38786&_trkparms=algo%3DLVI%26its%3DI%26otn%3D2) and does anyone have one?

I am not putting a cat back on!!!!!!!!!!!

(http://i910.photobucket.com/albums/ac303/funkyfive/The%20project%20car/012.jpg)

Title: Re: Decat Issues
Post by: Wayne on 20 August 2009, 08:44

You will need a cat fitted for the mot, however yes decat pipes need time to carbon up but yours was s/h so should be ok by now.

Title: Re: Decat Issues
Post by: funkyfive on 20 August 2009, 08:49

Quote from: Wayne on 20 August 2009, 08:44

You will need a cat fitted for the mot, however yes decat pipes need time to carbon up but yours was s/h so should be ok by now.

I am not too bothered about the MOT, as I have got a ticket for a year. I thought the same about the decat should already be carboned up.

Damn should leave it for a couple of weeks or get the cat fitted back on tonight???