Water in diesel tank

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Water in diesel tank

Postby gleem » Sun Aug 14, 2011 6:43 pm

Without to many questions, Water was accidentally put into my 3ct camry. It then ran 300m down the road and putted out. SO tank dropped and fully cleaned out. fuel feed line was blown through and diesel filter replaced. It still wouldnt start. injector pump outlet line removed and pumped diesel through untill that came out but still not firing. So what is left is the high pressure direct injection lines but surelly the diesel would be through after cranking for 50 seconds?
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Postby strx7 » Sun Aug 14, 2011 7:36 pm

if it injected water into the cylinders, you may need to pull out the injectors or glow plugs, crank it over to dry it out and then try again.
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Postby matt dunn » Sun Aug 14, 2011 8:02 pm

strx7 wrote:if it injected water into the cylinders,


If water made it to the injectors they will be stuffed.

Water molecules are bigger than Diesil molecules
and dont fit through the clearances in the injectors.
Usually they will blow the end off the injector.

But water doesn't usually make it that far as same goes for clearances in the pump.

Water in a petrol car usually just needs a clean out,
Water in a diesil usually requires parts to be replaced,
that why diesil's have water traps and lights that come on on the dash.
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Postby iOnic » Sun Aug 14, 2011 8:10 pm

^ This. Not an easy fix if water gets into a diesel fuel system.
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Postby evil_si » Sun Aug 14, 2011 8:32 pm

You will usually need to remove the fuel injection pump and injectors for repair

Have you cracked the lines at the injectors and cranked the engine, see if fuel sprays out if it does then tighten them and try to start
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Postby Grrrrrrr! » Sun Aug 14, 2011 8:55 pm

matt dunn wrote:If water made it to the injectors they will be stuffed.

Water molecules are bigger than Diesil molecules
and dont fit through the clearances in the injectors.
Usually they will blow the end off the injector.

But water doesn't usually make it that far as same goes for clearances in the pump.


That theory sounds like BS, H2O is a hell of a lot smaller than the molecules that make up diesel (eg.cetane is C16H34. 50 atoms vs 3 atoms)
I'm guessing its the violent expansion from the water->steam phase change that blows the tips off the injectors. Damage to the diesel pump will likely be corrosion and lack of lubricity leading to galling/seizing.

Either way, Water in diesel = bad juju.
Reality: A nasty hallucination that is caused by excess blood in the alcohol stream.
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Postby RomanV » Sun Aug 14, 2011 10:50 pm

Grrrrrrr! wrote:lack of lubricity


Haha, is that a real word?

Sounds like the name of a porn shop.

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Postby MAGN1T » Sun Aug 14, 2011 11:19 pm

If it's a manual, tow start it.
Can't do any more harm than what's already done.

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Postby gleem » Mon Aug 15, 2011 12:24 am

yes water did make it to the outlet of the injector pump which isnt good. this happened just over a week ago. How big are injector caps? big enough to damage internals? after diesel flowed to the pump outlet i hooked it up but still didnt start
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Postby gleem » Mon Aug 15, 2011 12:25 am

in terms of drying out cylinder wouldnt glow plugs and heaps of cranking do that?
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Postby fevil » Mon Aug 15, 2011 1:05 am

Water in the pump for over a week is not a good thing. From past experience once water reaches the pump its all over, I would pull the pump and injectors and have them tested.

There is a slim chance if you can get clean fuel to the injectors at pressure thing may start working.
Best of luck.
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Postby evil_si » Mon Aug 15, 2011 7:42 am

gleem wrote:yes water did make it to the outlet of the injector pump which isnt good. this happened just over a week ago. How big are injector caps? big enough to damage internals? after diesel flowed to the pump outlet i hooked it up but still didnt start


over a week. chances are its fu#ked. bleed the fuel at each injector then try and start

the injector tips are small, but if they come apart and make contact with piston or valve then they do lots of damage
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Postby gleem » Mon Aug 15, 2011 7:48 pm

by bleeding them i heve to pull them out, drain re attach and try again?
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Postby iOnic » Mon Aug 15, 2011 7:58 pm

Crack injector pipes off and crank till fuel spurts out then retighten and try starting again. A squirt of engine start at the air filter during cranking helps things along a bit too. Sometimes you just arent turning the engine over quick enough so a squirt of engine start gets it firing over.
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Postby evil_si » Mon Aug 15, 2011 7:59 pm

No
to bleed diesel injectors crack the fuel lines at the injectors

the 17mm (iirc) nut on the fuel line from the pump to the injectors (see pic below)

crack each nut approx 1/2 a turn at each injector and crank the engine

fuel should spurt out
tighten then try and start

Image
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Postby matt dunn » Mon Aug 15, 2011 10:03 pm

On a side note, never crack and injector pipe on a common rail diesil as the pressure they are under can kill.

And don't unplug an electronic common rail diesil injector while the engine is running as you can hydraulic the engine.

not that the old 1C or 2C diesil are either of those.
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Postby gleem » Tue Aug 16, 2011 8:41 pm

ok its a 3ct 1996. How do i know if its eletric or not?

Sorry dont know shit all about diesels
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Postby matt dunn » Tue Aug 16, 2011 11:16 pm

gleem wrote:ok its a 3ct 1996. How do i know if its eletric or not?

Sorry dont know shit all about diesels


It won't electronic be it is too old.

Read the Build plate on the firewall,

3CT is mechanical

3CTE would be electronic.

Common rail diesil's are about 2005 onwards.
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Postby limbo » Wed Aug 17, 2011 12:27 am

We had a crane at work, water into the fuel system and the lack of lubricity resulted in the pump grinding away all its tolerances so even tho the injectors were check and two replaced the pump could not make enough pressure to jet the fuel so it wouldnt fire.

changed the fuel pump and it fired up and someone got a bill for 3 months lost hire.
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Postby gleem » Thu Aug 18, 2011 7:51 pm

oh ok so was that the fuel pump or injector pump? yeah is a 3ct not 3cte. if i need to replace engine i want to find a 3cte
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