Ger's 2003 Porsche Boxster S

[geraintthomas]

Originally Posted by jdraupp

Ger, remember that heat plays a big part in a lot of things. It expands things. I had a Nissan that had a leaking head gasket. It would run rough when cold, then heat would expand the gasket and seal it and it would run perfect again. I'm guessing some variation of this is happening to your exhaust headers.

But that's what made me think that it wasn't an exhaust blow, because it happens when hot and not cold. But I suppose leaks and cracks could expand.

I'll have a little look to see if I can see anything myself, but I can't imagine I'll be successful. I'll take it to an exhaust garage whenever I get time.

Originally Posted by TrumpyAl

I thought the cardboard box being used with a heatgun had promise? To date I've only ever needed a heat gun but I like the approach he uses in the video better.

Heating a cardboard box to 225*C? Not sure I could do that...