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Forums > General Discussion   Shooting the breeze...

Petrol in diesel car

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Created by HENDO 77 > 9 months ago, 7 Jun 2014
HENDO 77
WA, 290 posts
7 Jun 2014 8:09AM
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The missus filled up the delica with petrol. Drove about 5 kms before getting home. She tells me it just started to run rough as she was pulling in the driveway. The car was almost empty when she up 50 liters in.
Ill drain the car today and change the filter and hope for the best. Anyone out there have any advice or had an experience like this
cheers

Sailhack
VIC, 5000 posts
7 Jun 2014 10:35AM
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Trade her in... and maybe the car too.

Cassa
WA, 1305 posts
7 Jun 2014 9:54AM
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Potential damage
Diesel fuel pumps operate on very fine tolerances and at very high pressures ? modern systems run at between 350 and 1600 bar) ? and are lubricated by the fuel. Petrol in diesel acts as a solvent, reducing lubrication, and can cause damage to the pump through metal to metal contact.
Driving and putting petrol through the fuel system is going to give you a big headache.


I think trade her in is a good idea

mitchbat
WA, 399 posts
7 Jun 2014 10:13AM
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My father in law did the same with a Kia work ute of mine. Drove it until it was running like a pig. After everything got drained out it ran just as well as before. No damage and 100,000 later it still lives.

gavnwend
WA, 1373 posts
7 Jun 2014 10:23AM
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NOT GOOD MOST CONCERVERVATED BILL FOR DAMAGE WOULD BE 5 TO 10 GRAND.IT HAPPEN TO ME .EASILY DONE& I DID IT .if it is a older style oiler the damage might be cheaper but newer common rail motors are not so forgiven good luck

Mobydisc
NSW, 9029 posts
7 Jun 2014 1:41PM
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If the fuel pump needs rebuilding then I've seen prices of around $1500 for this work. Maybe throw this question on the Delica Club site and see if anyone can give first hand experiences.

jbshack
WA, 6913 posts
7 Jun 2014 12:30PM
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Could you claim on your insurance

pweedas
WA, 4642 posts
7 Jun 2014 12:36PM
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If it's an older Deli car then it will have the ordinary old injector pump and injectors.
If it was still driving then there was still some diesel in the fuel mix, probably enough to prevent any damage, unless she is a total rev head and came up the drive with 4000RPM on the tacho.

Do what you said, empty fuel tank, empty filter bowls and replace filters, etc.
THEN... and important!
crack the connector nuts to the injectors so they are slightly loose.
Wrap some old undies around each loose connector.

Crank over the starter motor to pump out fuel from the loose connectors.

When the fuel coming out smells mostly of diesel, not petrol, then tighten the connector nuts and all should be good.
Oh,.. and remove undies. (off the injector connections,.. not off you. )
If the injector nuts are hard to get at, you can crack the connections at the injector pump, but better done at the injectors.

DANGER.
ANY FUEL SMELLING OF PETROL WILL BE HIGHLY FLAMABLE.
Be careful of any arcs and sparks or you will set yourself and/or your Deli car on fire.
(i.e. don't smoke while you are doing it.)

I would be very surprised if any damage has been done so far, and if you do this right none will be done.
Don't get rid of the wife,. I mean car, over such a minor problem.

Just thinking, you probably don't even need to crack all injector pipes nuts. Just one or two might be enough. I've bled air out of diesel injector systems many times just cracking one connection.

pweedas
WA, 4642 posts
7 Jun 2014 12:49PM
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Select to expand quote
jbshack said..
Could you claim on your insurance


No . If you read the fine prints, most policies list damage due to wives as specific exclusions.
Apparently the costs were just too high to cover.








(that's not true..,.. I just made that up. )

HENDO 77
WA, 290 posts
7 Jun 2014 12:52PM
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Hey guys thanks heaps for the replys the more I talk to people ,sounds like a lot of people have done it or known someone who has
hopefully no damage is done And im going to milk it for all I can from the missus

Cassa
WA, 1305 posts
7 Jun 2014 12:56PM
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Select to expand quote
bigtom said..

Hey guys thanks heaps for the replys the more I talk to people ,sounds like a lot of people have done it or known someone who has
hopefully no damage is done And im going to milk it for all I can from the missus


Getting a milking from the missus ?


can't be all that bad

Haircut
QLD, 6491 posts
7 Jun 2014 3:32PM
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try for something else, the finger is over rated

so i'm told

jbshack
WA, 6913 posts
7 Jun 2014 1:46PM
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Select to expand quote
pweedas said..

jbshack said..
Could you claim on your insurance


No . If you read the fine prints, most policies list damage due to wives as specific exclusions.
Apparently the costs were just too high to cover.








(that's not true..,.. I just made that up. )


Its just that it would be covered with Boat insurance. So I didn't know. I have seen it heaps, sometimes no issue, other times disastrous.

Mark _australia
WA, 23526 posts
7 Jun 2014 2:11PM
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If she is talking about it starting to run rough she's talking about it pinging bad.
I think its possibly pucked.

Jupiter
2156 posts
7 Jun 2014 3:09PM
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pweedas is right about most of the procedures. However, after spoken with my neighbour, he told me of the following...

(1). Drain fuel tank
(2). Loosen the fuel injectors. Be very careful with this as there may still be extreme high pressure held within these Common Rail injectors.
(3). Crank the engine until nothing comes out. Keep away from these injectors, or wrap them up as pweedas said.
(4). Check the injector heads (while not cranking). Since the car was driven for some 5 Km, petrol had been burnt within the combustion chambers. Because petrol has a lower ignition point, it may have already burnt/exploded within the injectors due to the high heat. If that is the case, then the injector heads may suffer some damage. So please check them visually for damage as well.
(5). If you are satisfied with the injectors being undamaged, leave them undone as is.
(6). Fill up the fuel tank with some diesel.
(7). Crank the engine. Do that until you can see diesel squirting out of the injectors.
(8). Re-install the injectors.
(9). Bleed the systems.

Note: Don't crank the engine for longer than necessary as you may burn out the starter motor. Give it a rest every now and then.

HENDO 77
WA, 290 posts
7 Jun 2014 3:31PM
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All went well.
dumped all petrol
put 2 liters of diesel in the tank and dumped that too make sure all petrol was out
put diesel in
removed the fuel filter and pumped it till only diesel came out
put it all back together
started a bit rough then came good
took it for a drive and runs fine


time for a beer ,put my feet up
and wait for the kids to go to bed
Cheers All

pweedas
WA, 4642 posts
7 Jun 2014 3:52PM
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umm,.. don't forget this bit,..

Select to expand quote
bigtom said..

.... And im going to milk it for all I can from the missus


Chook2
WA, 1249 posts
7 Jun 2014 4:19PM
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Only 5 Kms?? I would be very surprised if it's hurt it.

Most of that distance travelled would have been using fuel in the fuel lines, pump and filter even though they recirculate more juice than they consume.

You have done the right thing by flushing the tank.

It will take at least 3 tanks of fuel, before I'd let the wife relax though.

HG02
VIC, 5814 posts
7 Jun 2014 7:14PM
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Big Tom. Id say your entitled to be Simon . When you and your wife play Simon says next

I can remember years ago being a mechanic a truck diver filled up a local depot with diesel in the unleaded tank causing ciaos in the local town .
As a Mechanic I used to do some weekend work at a local service station . Got down there one morning before the owner Mechanic left for the football game . He told me to finish off a new motor he had fitted in a car as it was worn out .
Finished it off set the tappets before starting the old red motor holden ,ready to set them properly once it started they alway run rough till you set thew tappets on those old girls. Did that still ran rough as guts . Thought to myself thats strange then started looking around saw blue fuel in the glass fuel pump top and the alarm bells went off . Thought to myself stuff motor my don,t think so Tim just the wrong fuel . Rang the Fuel depot straight away once I realized . The owner mechanic had the Repco record in the surrounding area of fitting the most Reco motors .

I would change the fuel filter one extra time just to make sure every thing is OK in a 100 klms or so

pweedas
WA, 4642 posts
8 Jun 2014 12:11AM
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HG02 said..
....
I would change the fuel filter one extra time just to make sure every thing is OK in a 100 klms or so


nah,.. just throw in half a litre of 2 stroke outboard oil right now, with about 50 litres of diesel in the tank.
That will balance things up a bit and it will run sweet as a nut.



Actually, tip in 250 ml of 2 stroke outboard oil per tank of diesel all the time and see how smoooooth it runs. Almost as smooth as a petrol engine.
Tip the oil in first and then fiill it to mix oil around a bit. You wont notice any difference for about 10 km or so.

Mark _australia
WA, 23526 posts
8 Jun 2014 4:22PM
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Select to expand quote
pweedas said..
umm,.. don't forget this bit,..
bigtom said..



.... And im going to milk it for all I can from the missus


I don't think he forgot, he just said "and wait for the kids to go to bed" so I think he has some restitution in mind.....



HENDO 77
WA, 290 posts
9 Jun 2014 8:14PM
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got milked

fingerbone
NSW, 921 posts
10 Jun 2014 5:17PM
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Haircut said...
try for something else, the finger is over rated

so i'm told


Firstly...Hay finger is never overrated..

Secondly ... My mate did it to a work car 2005 navara...we drained it out,filled with diesel , good as gold.

kiteboy dave
QLD, 6525 posts
10 Jun 2014 5:28PM
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gavnwend said...
CONCERVERVATED


Can we all have a moment's silence in awe of this new word, whatever it means it's fantastic.



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Forums > General Discussion   Shooting the breeze...


"Petrol in diesel car" started by HENDO 77