Non Starter

[danhay]

Gents,

I've got a 1981 Porsche 928S which won't start. Due to reasons I won't go into, it hasn't run in about 6 months. It always used to start eventually after a period of standing (up to 2 months). When it did start, it used to suffer from general fluffiness till it warmed up, though it was always fine for the 1st couple of seconds after starting.

I believe it is fitted with K-Jetronic fuel injection. There's plenty of power in the battery and good sparks.

Is it possible the petrol has gone off? The fluffiness problem had been ongoing for a year or so, even when used regularly.

Anybody got any ideas what might be wrong?

cheers in advance

Dan

[deltaf]

Do all the usual checks first, the basics, plugs, leads, cap and rotor arm.
K jets a dam good system when its been setup.
Could be the cold start injector is not recieving power from the thermotime switch,(they fault a lot).
These can be tested by disconnecting the cold start injector(on the plenum) and connecting a test light between the terminals.
Then switch on the ignition and crank the engine.
The light should come on and stay on for about 8 secs max when cold. If it dosent light or stays on all the time, the thermotime switch would be at fault.
But like i said, do the basics first.
Hope this helps.

[danhay]

Cheers Deltaf.

Have checked the basics, will try and locate the cold start injector...It's a bit of a jungle under the bonnet, but I know where the plenum chamber is so will check that first.

>> Edited by danhay on Wednesday 19th February 10:00