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Join Date: May 2006
Location: dorset england
Posts: 80
sc wont start

hello ladies and gents,

I am a complete novice at mechanical stuff, my 81 sc will not run. i know it has a spark and I know it has fuel getting to the cylinders but it just will not go. What do i need to check?

Gordon

Old 01-20-2007, 08:21 AM
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When's the last time it ran? How well? Did it just stop, or did it not start after some work? Where are you?
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Old 01-20-2007, 08:23 AM
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sorry, it was off road for a while getting sprayed after some little B***ard scratched it, wouldnt start at paint shop.ran like a bag of spanners about a month ago, ran for a bout 2 seconds yesterday (like a big bag of spanners) now doesnt even sound like it will start, this all began about a year agoafter the cdi gave up the ghost. so I fitted an msd, whilst this was being done had ssi's fitted, hasnt really run properly since, now i keep getting jolts from the plug wires, tried a new set no difference, new rotor new cap, same but plugs out and connected, all firing with a bright white /blue spark, that much petrol going thru it was at one point leaking from the ssis ! oops! Am stuck now.

Gordon

Oh am in Dorset uk.
Old 01-20-2007, 08:31 AM
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Porsche Crest

Gordon,

Sounds like it was running rough ... when running. May have had an airbox explosion/backfire??? Did/do you have an airbox pressure relief valve [flapper] fitted?

If the airbox has cracks in from a backfire or explosion ... it would have the symptoms you describe.
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1973 911S Targa ... 'Annie'
1968 340S Barracuda ... 'Rolling Thunder'
Old 01-20-2007, 10:35 AM
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yep it has a pop off, could this be vacuum leaks? thing is now it just wont fire at all. has a spark has fuel wont do anything !

Gordon

Old 01-20-2007, 10:44 AM
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