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Old 09-10-2008, 12:42 AM
The220D The220D is offline
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Join Date: Jun 2007
Location: DC
Posts: 60
I added some Star Tron Enzyme tonight. Its supposed to kill the algae, etc., but not result in huge masses of slime that clog the filters. We'll see how it goes.

I pulled the secondary canister fuel filter and replaced it (even though it was only a week old) with one that had been in the trunk for, well, years. It was still in the box and fit right it. A bit smaller in diameter than the one I pulled and tossed, but perhaps that is a good thing?

I pulled the primary, inline fuel filter to make sure it was hooked up properly and not defective. The thing already, after being run for 2 hours total driving time since I installed it new last week, had a serious amount of crud in it. I didn't have another one to pop in, so I washed this one out and then gave it several good long shots of WD-40 to expel any water that might be in there.

I pumped the primer for, literally, just over an hour. Even after all of that time I could not get a very large air bubble out of the primary inline filter. The filter fills about 2/3 of the way up with diesel, but the top third is just a big air pocket. I pulled the bleeder bolt from the top of the secondary canister and pumped and pumped and pumped. Eventually diesel came out, but the first two times I did this after I stopped pumping, paused and started pumping again it took another 30+ pumps to get diesel to come out of the top of the bleeder hole again. It seems to me that once diesel has been forced up into the filter and through the bleeder hole the diesel should remain there, and squirt out immediately once you start pumping again. Am I wrong? If I'm right, that means that air is getting into the system somewhere, right?

In any event, I continued pumping and eventually I could stop, pause and start again and immediately get diesel to squirt out. But even after all of this, approaching the hour and 45 minute mark, I still couldn't get the huge air bubble out of the primary filter. Also, when I pump diesel comes up out of the pump itself. And it makes the hissing sound I mentioned earlier. I can't tell if the sound is air being pushed out of some hole, diesel coming out of the pump, or air being expelled from the pump.

At that point I figured it couldn't hurt to try to get her started. Cranked her several times and she eventually caught. Died quickly, cranked some more, and caught again. I let it idle for about 10 minutes until it abruptly died. Scratched my head and tried starting it again. Once again I got it running and let it sit and idle. This time it sat it idle, sometimes rough and sometimes smooth, for about 40 minutes. I eventually turned her off and said goodnight.

So, tell me if I am wrong but I'm pretty sure (1) I have algae in the fuel and perhaps a clogged tank filter as well as (2) an air leak somewhere which is preventing (a) me from getting the bubble out of the primary filter and (b) the car from starting / running smoothly. Assuming all or part of that is correct, how can I fix the air leak? Am I doing something wrong viz. pumping the primer? Am I not bleeding it correctly? What is the correct method? Do I need to take it to a shop and have them replace all of the fuel lines, as I looked them all over and can't spot the leak?
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