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Filled up with gas instead of diesel.
by
Gutta Perka
on 26 Dec, 2008 09:15
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I'm offered, very cheap, a Golf III -93 low milage, very nice in good shape.
´
The car was borrowed and by mistake filled up with UL-gasolin.
They just drove on until the car silently gave up.
Now it's for sale, private, because it won't start (he, he)
If I clean the injection lines, purge the pump, emty the tank, blow the fuie llines and reprime with diesel - what should I expect?
/Gutta
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#1
by
foxracer1
on 26 Dec, 2008 13:50
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If they drove it till it stopped i would suspect damage to the Injection pump primarily. But you could try to purge the gas out and get fresh diesel in there. Its at least worth a try.
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#2
by
rabbitman
on 26 Dec, 2008 14:00
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My cousin did the same thing to a 1.6NA, I think he just drained the tank and refilled with diesel and it ran fine. I doubt the amount of gas in the lines would hurt anything once it's mixed with a tank of diesel. Though of course you'd have to drain the line to the pump just to get it to start.
I wonder if there's a way to drain the IP? I sure would speed up starting it.
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#3
by
Vincent Waldon
on 26 Dec, 2008 14:10
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I think you can expect a great find... everyone I know that's filled the tank with gas had the engine stall long before pump damage could take place.
Purge the lines, pump, and tank well... change out the filter... prime by applying suction to the OUT fitting on the pump, and my guess is that you'll be good to go.
Worst case... you'll have to have the pump rebuilt... not the worst thing in the world.
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#4
by
jtanguay
on 26 Dec, 2008 17:39
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I'm offered, very cheap, a Golf III -93 low milage, very nice in good shape.
´
The car was borrowed and by mistake filled up with UL-gasolin.
They just drove on until the car silently gave up.
Now it's for sale, private, because it won't start (he, he)
If I clean the injection lines, purge the pump, emty the tank, blow the fuie llines and reprime with diesel - what should I expect?
/Gutta
if anything the gasoline would help break down some of the crap in the fuel system (which will plug up the fuel filter). it's pretty dry, but so is lubro moly's diesel purge. i doubt the engine ran long on the gas so the pump is probably ok. it might need to be re-sealed in the near future though...
follow the advice given above... i would drain tank, fill with diesel, install new filter, and put a vac pump on the out port on the pump and pump at least 5 litres of fuel through it. you could probably put that fuel back into the tank and drive as is. just put something like stanadyne in the tank and you should be good to go. a bit of gas in the diesel isn't as bad as you would think (other way around can be very damaging)
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#5
by
foxracer1
on 26 Dec, 2008 20:20
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Diesel in a gas engine isn't bad except for the poor running condition. The diesel isn't as volitile as gas. Plus it is better at lubrication.
Gas is extremely dry and that is very hard on a diesel fuel system. I'm not saying the only result is that the pump is damaged. I my self would for sure try and purge it out and run it. But i would keep a close eye on it
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#6
by
Gutta Perka
on 28 Dec, 2008 07:28
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It's a charm!
I bought it VERY cheap - the sound off diesel for many years sounds great!
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#7
by
Smokey Eddy
on 28 Dec, 2008 15:25
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nice man
What happens when you compress petrol to 155 bar and then release it?
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#8
by
jtanguay
on 28 Dec, 2008 16:38
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nice man
What happens when you compress petrol to 155 bar and then release it?
same thing as diesel, except since its thinner it will (theoretically) develop pressure later and give retarded timing... but it should atomize properly and actually burn... some of the newer gasoline engines are working on this principle (if they can get it right, gasoline engines would run nearly as efficient as diesels... but diesels would still win due to the extra energy content in the fuel)
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#9
by
Dirtrag2
on 28 Dec, 2008 16:38
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nice man
What happens when you compress petrol to 155 bar and then release it?
FSSSSSSSS... BOOM! :twisted:
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#10
by
Smokey Eddy
on 29 Dec, 2008 02:04
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Oh cool...
Just make sure there is NO o2 in the lines with the fuel eh hahahaha
If you compress (with any kind of speed) hydrogen in the presence of any oxygen it will explode very easily and scarily.
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#11
by
fatmobile
on 30 Dec, 2008 01:20
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From what I understand, you can't compression ignite gas,... with a diesel engine.
It needs a spark.
Diesel won't light with a spark but will flash at a lower temp,.. so it will compression ignite in a diesel engine.
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#12
by
Dakotakid
on 30 Dec, 2008 20:25
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....flash at a higher temp.
I once purchased a parts-car Golf which had been run on gas. The pump and injectors were scrap....and two of the soft plugs on the back of the block were blown out as well. Why such devistation here?
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#13
by
jtanguay
on 31 Dec, 2008 04:42
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....flash at a higher temp.
I once purchased a parts-car Golf which had been run on gas. The pump and injectors were scrap....and two of the soft plugs on the back of the block were blown out as well. Why such devistation here?
i guess it all depends on the ratio... even the old bentley for mk1 cars say in an emergency, 50% mixture gas/diesel can be used. i guess if they were really revving the snot out of the motor it could have damaged the pump...
and about gasoline not igniting under compression, then wtf is pre-detonation in a gasoline engine??? even a low CR such as 10:1 requires special gas because otherwise the crappy gas will autoignite and ping. granted in a diesel application it would run like crap and possibly burn the motor, but it should ignite...
if any damage at all, it would be due to the lack of lubrication properties of gasoline.
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#14
by
jimfoo
on 31 Dec, 2008 05:30
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Pre det in a gas car is usually due to carbon, glowing hot carbon. My ex-brother in law put gas in a Ford diesel, it cracked the head.