(A) well done Porsche

[epilot]

Hi all,

back from lunch with a couple of buddy's (boxster drivers) giving me an awful time about MFI cars and spontaneous combustion and the 1972 911 that recently caught fire up here

as an ex Melburnian i cant bring myself to read the local rag so completely missed this

http://www.theherald.com.au/news/loc...t/1435173.aspx

[matt911]

Ouch! I prefer mine rare.

[IXXI72]

Lucky it happened right outside the fire brigade

[James 69S]

Raises the question of fuel hoses replacement. Is this a do it yourself prospect (i'm guessing yes) and can a good quality hose from an auto shop be used?
Could be cheap insurance.

[e72phil]

Depends if its an MFI car as I believe there are higher pressures involved with these systems.

Phil Hearn gave me some special fuel hose he uses so will try to find out what it is.

[Jeff Eelkema]

Higher pressure hose is widely available as all modern cars are injected and typically run around 30psi+. I think MFI systems run around 28psi and carby systems will only run at 3-4psi.

[griffiths_r]

does that mean that carbs are less likely to cause a fire like this?!?

[OBRUT]

rich,

probably not. the pressure may be lower but the voume of fuel supplied is about the same. if you split a line you're in trouble.

i've been in this situation - for another reason - and its pretty frightening.

my former 1988 3.2 caught fire in bondi. similar story - started to run rough (it had been raining and it felt like a wet plug lead), stall, big backfire, looked back and it was well alight. luckily managed to put it out fairly quickly (despite reaching down and finding an EMPTY fire extinguisher bracket...).

the culprit turned out to be one faulty fuel injector which had failed open and filled the cat converter with fuel.

[Jeff Eelkema]

Carbs/fuel hoses can still leak and any fuel leak can cause a fire!

[CamBiscuit]

Yep I regularly check mine. Especially after smelling fuel with the engine running and lifting the engine lid to find a nice steady stream of fuel dripping down the side of the engine on to the SSI's.

Just a loose hose clamp.....

[Fishcop]

I've had issues with carbies too. Usually the seal at the banjo fittings (the red fibre washers). I've been meaning to replace them with the PMO 'fuel bars'.