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Car Forum / Peugeot Cars / January 2006

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Petrol in diesel 1.9TDi :(

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CB - 29 Jan 2006 11:50 GMT
Hi

My better-half put £20 of unleaded in my 1998 406 1.9TDi yesterday!

Luckily she did not start the car as she realised what she had done in time.

Is there any way to drain the tank in-situ on my car or is it a case of the
fuel tank has to come out to be emptied? I can't see a drain plug on the
bottom of the plastic tank.

Thanks...
Jim Mason - 29 Jan 2006 15:07 GMT
> Hi
>
[quoted text clipped - 5 lines]
> fuel tank has to come out to be emptied? I can't see a drain plug on the
> bottom of the plastic tank.

If it is the same tank as the 306 than IIRC the tank would have to come out
to be drained properly or could perhaps be pumped out after removal of the
level sender unit?

Jim
CB - 29 Jan 2006 16:47 GMT
In article <GqOdncE-muWUMUHeRVnygA@giganews.com>, a@b.com says...
> Hi
>
[quoted text clipped - 7 lines]
> fuel tank has to come out to be emptied? I can't see a drain plug on the
> bottom of the plastic tank.

If it is the same tank as the 306 than IIRC the tank would have to come out
to be drained properly or could perhaps be pumped out after removal of the
level sender unit?

Jim

Hi Jim

Am I right in thinking that the level sender unit is accessed under the rear
seat?

If so is it a viable theory to syphon all the fuel out once the level sensor
has been removed?

Cheers...
Jim Mason - 29 Jan 2006 16:55 GMT
> In article <GqOdncE-muWUMUHeRVnygA@giganews.com>, a@b.com says...
> > Hi
[quoted text clipped - 19 lines]
> Am I right in thinking that the level sender unit is accessed under the rear
> seat?

It is in the 306

> If so is it a viable theory to syphon all the fuel out once the level sensor
> has been removed?

I would have to pass on offering an opinion on that as I see other
suggestions about removing fuel lines to drain. Seek more expert opinion
than mine - all I know is that there isn't a drain plug on my 306DT tank
either.

Jim
Malc - 29 Jan 2006 15:41 GMT
> Hi
>
[quoted text clipped - 6 lines]
> the fuel tank has to come out to be emptied? I can't see a drain plug on
> the bottom of the plastic tank.

Can you disconnect a pipe at the bottom somewhere? If you can't then perhaps
you could cut the pipe then reconnect with a piece of fuel hose and a couple
of jubilee clips. Siphon? I'm sure that if you could get most of the fuel
out then a refill with diesel should see you ok.

Signature

Malc

You're not going to rain on my charade!

CB - 29 Jan 2006 16:51 GMT
Hi, Malc

The pipes to and from the fuel tank are of a very rigid plastic construction
and I am obviously wary of disturbing them too much as I assume that in a
car of some 8 years of age these pipes would be quite brittle. Also the
pipes are clamped onto the tank with white clips that look like they were
over-engineered with someone who had far too high a development budget! :)

Regards...

>> Hi
>>
[quoted text clipped - 11 lines]
> and a couple of jubilee clips. Siphon? I'm sure that if you could get most
> of the fuel out then a refill with diesel should see you ok.
Jim Mason - 29 Jan 2006 17:24 GMT
> >> Hi
> >>
[quoted text clipped - 11 lines]
> > and a couple of jubilee clips. Siphon? I'm sure that if you could get most
> > of the fuel out then a refill with diesel should see you ok.

> Hi, Malc
>
[quoted text clipped - 3 lines]
> pipes are clamped onto the tank with white clips that look like they were
> over-engineered with someone who had far too high a development budget! :)

I would tend to agree. If the tank can be practically emptied via the top
after the sender unit is removed then it would seem the obvious way to go
but would this ensure the fuel lines are free enough of petrol to be safe
enough to restart after a complete diesel refill? On my 1995 306DT I would
be more than happy - only someone much more expert could tell you whether
you would be safe starting an HDI engine under those circumstances.

Jim
davek - 29 Jan 2006 18:19 GMT
> Hi
>
> My better-half put £20 of unleaded in my 1998 406 1.9TDi yesterday! I
> can't see a drain plug on the  bottom of the plastic tank.

If you trace the pipe on the fuel filter back under the car maybe there's a
joint you could disconnect and gravity will do the rest. Have plenty of
containers ready.
Don't think a tdi XUD engine should come to harm with a little bit of petrol
through it. The hdi's aren't so forgiving.
DaveK.
Marc  Amsterdam - 29 Jan 2006 19:30 GMT
>Hi
>
[quoted text clipped - 7 lines]
>
>Thanks...

there is a prime pump in the tank, disconnect the fuel line just
before the fuel filter ,  disconnect the stop solenoid at the high
pressure pump ( the only wire going there)  and put the contact om,
the prime pump will empty your tank.

make VERY SURE you lead the fuel away from the car and DO not, i
repeat DO NOT have any ignition source near the fuel in any way. (
sugestion, extend the fuel tube)

maby you have to short the solenoid wires to get it working, again be
very aware you are working with a high explosive mixture.

oh yeah work in open space and have a foam extinguisher at hand

you dont need to cleam out the tank, just fill it up with diesel
again.

after your done replace the fuel filter, drive on a quiet road for the
first 10 miles or so to see all in normal again

happy motering

Marc
Brian - 29 Jan 2006 23:58 GMT
> >Hi
> >
[quoted text clipped - 12 lines]
> pressure pump ( the only wire going there)  and put the contact om,
> the prime pump will empty your tank.

No there is not, that only applies to the HDI models.

A 10% addition of petrol will not do so much harm, so get what you can out
and fill it to the brim with diesel. The main problem is the lack of
lubrication as petrol will not give any. You could add a bit of two stroke
oil to make up for it, or, though it might be a bit illegal, a few litres of
rape seed oil, which will mix OK and won't smoke.
£20 would be a bit less than half a tank, so as long as you get at least
half of that out, and top it up you should be OK.
Of course, there is a rubber priming pump I think somewhere in the engine
bay, you could use that, (disconnect the pipe before the fuel filter) but it
would take a long time, and your wrist would ache after a bit too.
Oh, and don't be too hard on the culprit, many have done the same.
Marc  Amsterdam - 30 Jan 2006 11:49 GMT
>> >Hi
>> >
[quoted text clipped - 16 lines]
>
>No there is not, that only applies to the HDI models.

so how does it get the fuel out of thetank in the moterbay then?

>A 10% addition of petrol will not do so much harm, so get what you can out
>and fill it to the brim with diesel. The main problem is the lack of
>lubrication as petrol will not give any. You could add a bit of two stroke
>oil to make up for it, or, though it might be a bit illegal, a few litres of
>rape seed oil, which will mix OK and won't smoke.

>£20 would be a bit less than half a tank, so as long as you get at least
>half of that out, and top it up you should be OK.
>Of course, there is a rubber priming pump I think somewhere in the engine
>bay, you could use that, (disconnect the pipe before the fuel filter) but it
>would take a long time, and your wrist would ache after a bit too.

or use that to pump up the fuel and than have it lower than the tank
itself...

>Oh, and don't be too hard on the culprit, many have done the same.

had to do my mom's car twice....
Phil Cook - 30 Jan 2006 12:52 GMT
Marc Amsterdam wrote:

>>> there is a prime pump in the tank, disconnect the fuel line just
>>> before the fuel filter ,  disconnect the stop solenoid at the high
[quoted text clipped - 4 lines]
>
>So how does it get the fuel out of thetank in the moterbay then?

The fuel pump pulls the fuel up the line from the tank. The seals on
the line are good enough to stop it falling back down when the engine
is stopped. If you do get air in the line you will have to prime the
pump using the bulb or priming pump to expel the air. Running the fuel
pump without fuel is a good way to ruin it as the fuel acts as a
lubricant.
davek - 30 Jan 2006 16:08 GMT
>>Oh, and don't be too hard on the culprit, many have done the same.
>>
> had to do my mom's car twice....

Diesel Guard (Google finds it) should stop the problem in future. £12.50 inc
p&p.
I had one but it got full of water when the drain hole by the filler got
blocked. Started gurgling instead of talking.
DaveK.
CB - 30 Jan 2006 19:05 GMT
>>>Oh, and don't be too hard on the culprit, many have done the same.
>>>
[quoted text clipped - 5 lines]
> blocked. Started gurgling instead of talking.
> DaveK.

Hi Guys,

Firstly and most importantly, a huge 'thanks' to all of you for the advice
you have all offered. I really do appreciate it.

This morning I towed the car down to my local garage and after detailing my
adventures in this thread they drained AND filled the tank with three
gallons of fresh diesel for exactly £46.66 inclusive of VAT. I did not argue
and considered this a bargain!

The car is driving like a good 'un and I've let the wife back in the house -
for now! :)

Regards

...
Wichita - 31 Jan 2006 18:27 GMT
I guess the question now is ... how did they do it?
(And at that price clearly you can't live in London or similar
metropolis with a garage that charges so little ...)

Cheers

> Hi Guys,
>
[quoted text clipped - 12 lines]
>
> ...
CB - 31 Jan 2006 19:38 GMT
Hi

They disconnected a diesel pipe from the bottom of the tank, removed the
filler cap and let gravity do the job.

Your right, I don't live in London. I'm in Lancaster just north of Preston.
My local garage (who I have used for the last five years) charges £27.50 +
VAT per hour for labour.

As a point of interest how does that compare with London and other cities?

Regards...

>I guess the question now is ... how did they do it?
> (And at that price clearly you can't live in London or similar metropolis
[quoted text clipped - 18 lines]
>>
>> ...
Jim Mason - 31 Jan 2006 19:59 GMT
> >I guess the question now is ... how did they do it?
> > (And at that price clearly you can't live in London or similar metropolis
[quoted text clipped - 14 lines]
> >> The car is driving like a good 'un and I've let the wife back in the
> >> house - for now! :)

> They disconnected a diesel pipe from the bottom of the tank, removed the
> filler cap and let gravity do the job.
[quoted text clipped - 4 lines]
>
> As a point of interest how does that compare with London and other cities?

Local Peugeot dealer just outside Glasgow is 48 an hour. Small two man
garage run by an ex Pug mechanic is 20 an hour (Glasgow North).

Jim
 
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