Lux wont start

[AndrewS]

The 944 that is the subject of this unfortunate indicent is an early car (1983/4), hence would not have had the smaller unleaded fuel nozzle opening that later cars have. Only the later Cat equipped cars have the smaller opening.

Hence, it would have been possible to put diesel in the tank. Unleaded fuel was introduced in the UK in 1988. Back in 1983/4 - it was 2, 3 or 4 star (with 5 star having been discontinued earlier).

Regards,
Andrew

 

[barks944]

Thanks for the clarification Andrew. Back to the original plan!

 

[Mike_Pollock]

Not quite! : ) My '83 has a reduced opening but is easily bent and has come out on the nozzle a couple of times .
Mike

 

[barks944]

My head hurts now. Anyone know if a mix of 70% diesel and the rest petrol would evapourate?

 

[ukmastiff]

My first thought was Diesel but you dont like to post it unless it sounds cocky or clever

Im only posting now to say dont discount it until you have checked the size of the filler neck as our 944's are older cars and I'm not at all sure when the filler size protection thing started. ( or check the receipt like the man says , the price per litre will tell you for sure)

If you have run the engine and the Diesel has gone through , it wont be good news TBH as it can cause a very large repair bill so I hope it isnt actually Diesel.

Regards Mas

 

[AndrewS]

ORIGINAL: A9XXC

Not quite! : ) My '83 has a reduced opening but is easily bent and has come out on the nozzle a couple of times .
Mike

If your car is a UK car, it was almost certainly retro-fitted. 944 models were only fitted with the later type of filler neck if they had a catalytic converter (1990 onwards).

Remember, unleaded fuel was not even available in the UK until 1988 (when we had the weird dim/dip headlinghts).

Regards,
Andrew

 

[AndrewS]

ORIGINAL: barks944

My head hurts now. Anyone know if a mix of 70% diesel and the rest petrol would evapourate?

Are you now sure it's diesel?

If so, I guess you need to clear the fuel lines to the fuel rail, make sure the fuel rail is clear and possibly also clean the injectors. I can't imagine there would be any lasting damage.

Regards,
Andrew

 

[barks944]

Just rang the garage and gave them the price and the date. They said Diesel, I guess that confirms it then. Will get some more petrol on the way home and flush it out again.

 

[AndrewS]

Here are some other experiences that might help (not Porsche related). . .

http://answers.google.com/answers/threadview/id/592587.html

Regards,
Andrew

 

[barks944]

What still doesn't make sense is how it ran for about 20 miles after filling the tank. When I started it up and drove 15 miles home I remember checking to see if it was smoking and it wasn't. Strange as it was already having serious trouble starting at that point. Once it did start I would have expected it to produce a serious ammount of smoke but it was clean as a whistle.

Would there be enough compression for the thing to have run all the way home on 70%+ diesel!?!?!

 

[FistsOfHam]

My guess would be that there is quite a bit of fuel between the fuel tank and the engine. Probably not enough to travel 15-20 miles but you never know.

 

[barks944]

Its a re-circulating fuel system though. The pump goes at over 2 litres per minute so it should flush through the system within a minute or so right?

 

[morris944s2john]

The other possibillity is that the 944 has quite a big fuel tank. I once drove for over 50 miles with the red petrol light on, so there is a reserve of at least a couple of gallons, possibly more fuel left in the tank when you think the car is completely empty. So, "75% diesel" could easily be more like 66% or 60% or less- the rest petrol and this may well evaporate when tested and be enough to get you home with rough running, but then not start the next day.

Another thought, with all the swapping of ignition parts, did you put the plug leads back in the right order? go check this- or, they may be in the right order, but the 1342 firing order can be one whole cylinder out, either forwards of backwards, if you get my meaning, so the spark is occurring at the wrong part of the 4 stroke cycle.

If a car has fuel, air and a spark at the right time ( and mechanical side is OK ), it will run. Also, give your battery a good long charge and try again.

 

[morris944s2john]

By the way, I have encountered all the above when helping various friends to start their cars! Don't overlook the obvious.

 

[barks944]

ORIGINAL: morris944s2john

By the way, I have encountered all the above when helping various friends to start their cars! Don't overlook the obvious.

Quite right! Its easily done.

I think its right as the leads are of specific length for each plug. Good point about the reserve, I was amazed by how much came out of the tank tbh. A whole black bin almost. Doesn't seem like there would be space for it all in the tank.

 

[Mike_Pollock]

On the plug leads - its easy to get top and bottom mixed in the dizzy - experience!
Mike

 

[barrie nunn]

if you have put derv in your petrol car you will need to change any fuel filters on the car as heavy oil bungs them up... sorry for the good news