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Anyone here with 7.3 IDI had a algae contamination?
Anyone here with a 7.3 or 6.9 IDI had a algae contamination in their diesel?
What did you to get rid of it, and did that work?
Did the contamination return, and if so, after about how long?
I've had such a contamination, and have it again, and I can't get my engine running correct, like to know what to do next?
Minor infestation and used Biobar JF -- available on Amazon -- haven't had any problems since -- used the "kill" treatment first time then have continued maintenance treatment --- have you considered dropping the tanks and cleaning the heck out of them ?
Well, indeed, I did.
everything, both tanks, filter-head, flushed the lines etc.etc.
then added fresh diesel with a shock treatment from acticide cmg, which is something like Grotamar. (I'm in Europe, some of those US products we can't get here).
and then I couldn't get the engine running correctly, probably due to installing a new filter with too little capacity. I didn't know that upon installation.
The original filters cost me 75€/piece, that's why I looked for a cheaper solution, because I thought that I needed to change them out a coppel of times, and boy was I right!
because the engine didn't run correct, I tried in the end just to use the original filter set up, with a new filter, and from the beginning it didn't run correct, with the accelerator pedal in one position it hunts in revolutions, and within 10 minutes it died on me, and before the restricted filter indicator came up!
I'm afraid that I need to repeat the whole operation again? (I prefer not to)
Oh, and you wrote that you added Biobar JF, is that all? you added and continue to drive your truck? if so, where did go all those algae?
can you describe how your engine isn't "running correctly"
it could be you're getting air in the fuel ??
I might hook a fuel can up to the front bumper and go straight to the injection pump bypassing everything else and see if the engine runs good, then you can work your way back to the tank and find the problem,
can you describe how your engine isn't "running correctly" In ten minutes starting with a new filter engine runs "almost" correct (gobbeling away air from filter change) then driving around rural road, feet on the accelerator steady in one position, engine is hunting trough the whole rpm spectrum, when I needed to stop, engine died on me, I got it restarted, and it was only good for another 500Meters. engine died again couldn't be restarted. and restricted filter light was on.
it could be you're getting air in the fuel ?? Not sure, engine run before (two months) without those troubles.
I might hook a fuel can up to the front bumper and go straight to the injection pump bypassing everything else and see if the engine runs good, then you can work your way back to the tank and find the problem, I can do, but not without any form of filtering. Overhaul of the pump is way too expensive, and far away Europe-US.
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(message was too short
said program.so this is fill-up)
When I first got mine it had been sitting for awhile and had the goo. I used a Biocide treatment and it cleared up. Since it doesn't sit anymore, the algae doesn't get a chance to grow. Adding a small amount of petrol may also aid in cleanup.
I might have seen a bit of light at the end of the tunnel, After my truck broke down at the side of the road, and I got her home with my tractor, I left her for a week, (busy with other things) and just when I tried to restart her, after a bit of hesitation she started again! a bit of shuddering around 1300RPM, and the filter restricted light came on first time at 2000RPM, second time at 1500 RPM, so I think I'm still in the orange, not yet red zone.
I'm thinking of "polishing" the fuel in the tank, and install another new filter.
and hoping I'm good afterwards!!!
Hmmmm, I'm now about 4 hours into "polishing" my fuel, that's something Boaters do once and a while, to prevent, or get rid of algae contaminations. In fact nothing else than recirculating the content of your fuel tank through a magnet and fine filter with water separating capabilities.
So I'm 4 hour into that, and I cannot see anything bad through the clear bowl of my (external) filter, and also the electric pump runs well.
I wonder what was the cause that illuminated, on my spanking new filter , the restricted filter light?
I connected the external filter to the little rubber hose that goes into the mechanical fuel pump in front of the engine, almost in the frame rails.
so could it be a dab of algae still in that vertical fuel pipe into the filter head?
I don't know????
anyone?
Can you blow back the lines to tank to see if clear?
Then run some ATF through them and fill up the fuel filter, run it for a minute and leave over night
The only part of the fuel system that might possibly not be clear now, is the lift pump, that metal line to the filter head, the filter and the piece to the pump.
all the way from the tank until just before the lift pump I flushed through yesterday afternoon the whole afternoon, circulating the diesel through a filter, just to filter out all irregularities. there were non (visible at least).
tomorrow I'll handle that last part, But I guess ATF in the filter will not unstuck the goop eventually in the filter, will it? perhaps best replace that filter?
Today I warmed up the engine, after I "polished" the fuel, and I discovered two things;
1* the fuel-filter leaked, And I wonder if that is what caused the "filter restriction" light to come on?
2* When warm, I ran the engine at 1600-2000 Rpm for a few seconds, and then let it go back to stationary, where it started to shudder.
What I wonder here, is: could it be that the filter is still restricted partially, and the engine running at such Rpm's is aspiring all diesel fuel out of the IP, causing the engine to shudder until the lift pump manages to get the IP filled up again?
Or would it be something else?
I have made two video's from that.
sorry for the shaking in the short one.
Filter restriction light comes on when the sensor on the top of the filter registers a vacuum. This means the injection pump is sucking more fuel out of the filter than the lift pump can deliver to the filter. The most common cause would be a restricted/clogged filter. Other causes would be a block in the fuel lines between the tanks and the filter, or a broken fuel pump.
Leaks will not cause the filter light to come on.
You need to see if your filter is clogged up again, and address the leak.
I've cleaned the line from the lift pump to the filter this afternoon, and I tried to measure (failed to due to no idea what tool to use for that) fuel pressure at the schreader valve, with the engine running, but when I put in that little metal pin, the fuel came out pretty violent.
btw, I did not replace this filter, which (according to the "filter restriction light") was restricted within 10 minutes of running the engine last time.
and now, warming up the engine, and making several passes up to and over 2000 Rpm, not even bothered to light the "filter restriction light".
So, I'm not really sure if it's the filter which is blocked? (in that case the light should have to come on now as well?)
anyway, I'm sure the system (tanks and lines) are clean up to the filter housing.
Is there any way that eventually any contamination entered the IP?
It runs fine when at low Rpm's.
This is strange, two weeks ago I installed a new filter, and just when I was experimenting with how my engine runs now, I discovered it leaks, see video in post:
So today I decided to change again the filter to get rid of eventual contaminants (residue of the algae) and the leak.
After I took the old filter off I checked the gasket in order to see if there was any reason to leak. Non found!
I cleaned the underside of the filter head, no damage there either.
So I install the last new filter correct, some fresh engine oil on the gasket, and screw it on, not too tight, not too loose. run the engine, and voilá, this one leaks also!? What could be the reason for that, anyone knows?
Only thing which I can imagine to be the cause of the leak is that fresh bolt which I installed with locktite tread sealant, so is hard to imagine that that leaks?
