DaveyGTi

DaveyGTi

Well-Known Member
So after a misadventure on Salisbury Plain on Sunday involving a deeper-than-anticipated mud hole, a large volume of water and 4 nice blokes who dragged me out and spent a good couple of hours trying to empty water out of my engine, we discovered water had got in the fuel tank. I've since got home, drained the tank, discarded the fuel filter and flushed water out of the line from the tank to the filter and the leak return line from injectors to tank but I seem to get nothing flushing through the pump with the air line from the filter end (fuel lines disconnected from injectors.) Is there a valve or something inside the pump that needs operating somehow?
 
Stop solenoid, but I doubt you will just be able to blow through anyway. If the pump was open the way through, it would not pump.

Why not just take the pipes off the back of it, and crank the engine?
 
Yeah I may well give that a go, was just trying to save faffing around more than I needed if there was an easy way around.
 
What makes you think you will need to flush the pump , your filter should have stopped any muck getting to the pump inards.
Did you get water into the air intake when engine was running ? If so you probably have bent con rods. I know from experience.
Does the engine turn over ok?
 

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Yeah the engine turns over on the starter without any odd noises but there was a bit of water in the air intake, I think I'd switched it off before too much got in. There was a good litre of water in the fuel tank though, I assume that the filter would remove the muck but the water itself would be all the way through the fuel system.
 
Just a litre of water in the fuel tank - might be enough not to get drawn in at all...

I personally would slacken off the top of the injectors and crank till I got diesel and then see if she starts... Did the air filter get wet at all?
 
There was definitely water in the fuel lines, as suggested I've pulled the lines off the injectors and cranked it till nothing else came out, now struggling to prime, seems to be no resistance on the lift pump lever, new one is on its way now. Yes the air filter did get wet but I think the engine is OK, I'd turned it off when submerged and we blew the water out of the glow plug ports, sounds fine cranking on the starter, just no fuel yet.
 
DaveyGTi said:
There was definitely water in the fuel lines, as suggested I've pulled the lines off the injectors and cranked it till nothing else came out, now struggling to prime, seems to be no resistance on the lift pump lever, new one is on its way now. Yes the air filter did get wet but I think the engine is OK, I'd turned it off when submerged and we blew the water out of the glow plug ports, sounds fine cranking on the starter, just no fuel yet.
Click to expand...

Flick starter to take lift pump off cam.
 
I find that the lift pumps offer no reissitance when theyre full of air. I also find that they break quite quickly (but you dont notice until somthing goes wrong, as the IP s generally strong enough to do without them).

A new pattern lift pump is about £7 i think, so not worth spending too much time on.

(ive got sick of them breaking on my diesel 101, so have fitted a little electric pump)
 
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