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Exhaust leak? 

 

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 Post subject: Exhaust leak?
Posted: Wed Jun 15, 2011 5:52 pm 
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Age: 30

Posts: 4

Joined: 9th Jun 2011

Ride: XR6 Falcon XG

Location: Busselon
WA, Australia

G'day, new to these forums, hope you guys can help.

Sounds like I've got a pretty bad exhaust leak, but when I switch over to lpg the sound disappears. Is this due to the differences in lpg/petrol - maybe the different pressures affect the exhaust differently? or have I got another problem on my hands. I can't find an obvious leak although my cat looks a bit flimsy to say the least.

I originally thought the problem was one of my valve cover bolt gaskets, because one had melted and there was a 'heat spray' damaging the finish on the valve cover, but I changed all of them and the problem remains.

Any suggestions or input appreciated, cheers

Sorry just read the forum guidelines, this post shouldn't really be in the 6cylinder workshop, but I haven't worked out how to delete it! Sorry!
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 Post subject: Re: Exhaust leak?
Posted: Thu Jun 23, 2011 7:17 pm 
Fordmods Newbie
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Age: 30

Posts: 4

Joined: 9th Jun 2011

Ride: XR6 Falcon XG

Location: Busselon
WA, Australia

Update:

Definately was an exhaust leak, a pretty big one at that, but I'm still stumped as to why I couldn't hear it on lpg?
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