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#16
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#17
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Geezzz, Brian........
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“Walk away”, as in I don’t have to stand there in the hot sun in the driveway and can step into the garage and keep an eye/ear on it from there. i.e. Piddle around, work on something else while the Purge is working on my car. I don’t go out for lunch, shopping at the mal, or anything like that, Silly! The level in the jar is the only thing you have to keep an eye on. And if you don’t, the motor will just shut down when it runs out anyway. Not that that’s a good idea. But it’s not catastrophic either. I just don’t like having to stand there holding a jar for 20+ minutes.
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1980 300D - Veggie Burner ! |
#18
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But, human nature being what it is, the odds are that someone will run it out of fuel. Sometimes it's a PITA to get it going again.........sometimes not. |
#19
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How do you "operate the primer pump" for the purge and where is that pump located? (sorry, still waiting on my service manual CD from ebay...)
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#20
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I'm not sure why you need to use the primer pump on a purge procedure. |
#21
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Here's why....
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I guess you could leave the fuel line connected to the primary filter and disconnect the other end of it and stick it into the jar. But, that would put the jar down too far and out of reach of the return hose. And no place to secure the jar either. That’s why they provide you with the length of clear tubing.
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1980 300D - Veggie Burner ! |
#22
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If you prime it........does that air finally go back through the return line at the secondary? |
#23
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Now someone here might know more about this than I, and it would be cool to hear from them. Perhaps these are self priming injectors and (return) lines, and only the IP needs priming. I’m not 100% sure. I know my VW 1600 diesel did not, and required cracking the lines when the system was ever opened up or run out of fuel. Back to the topic -You must prime the line from the jar of purge to the IP or the motor won’t run for long. Nor will it ever get the purge sucked into the system. There’s just too much air in the tube when you start out. Also - FYI - Brian - We got Hilary Duff going to NYC next week with a few of her friends. Not sure if I’m pilot or Jennifer. If it’s me, and we stay awhile, I’ll give you a ring. It’s on the books (so far) as a 1530 departure Dallas, 4/28. No exact destination other than NYC listed ATT.
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1980 300D - Veggie Burner ! Last edited by WVOtoGO; 04-22-2006 at 07:46 PM. |
#24
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What's the fuel recirculation circuit for this engine? The fuel is recirculated from where? And I assume the return line goes back to the fuel tank or in this case the jar of purge? People talk about getting their fuel filters really dirty after the purge, but if it's the injectors you're cleaning, won't that dirt simply burn up in the engine and come out as exhaust?
Why won't the system suck in the purge unless it's primed? That doesn't make a whole lot of sense. If the purge is the only supply of fuel instead of the fuel tank, then doesn't it naturally get sucked into the modified fuel circuit? |
#25
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It can need a valve adjustment and sound perfectly normal. Actual measurement is the only way to determine if it needs it or not.
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Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
#26
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Because...
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In other words - diesel engines can't have any air in the system ("fuel circuit").
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1980 300D - Veggie Burner ! |
#27
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Weird...
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If it's the injector it's cleaning as it is sprayed out of it, it for sure is not coming back into the system. Maybe they're talking about having really dirty fuel lines. In which case, it may be cleaning them out and being sent back through the system on the return side. Maybe they're saying the removed dirt is sent back to the jar and then sucked back into the sytem. If so, you'd see it in the primary filter. I purge twice a year. Schedule the filter change with the purge and don't worry about it. My primary filters are replaced more than that.
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1980 300D - Veggie Burner ! Last edited by Brian Carlton; 04-22-2006 at 10:26 PM. |
#28
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The previous owner put a 3rd filter into the fuel supply line... "For extra measure of precaution", he said. I'm not really sure if that's necessary or not...
So what do I need other than the couple of cans of diesel purge for this procedure? What size hose?... A container/jar that will act as a temporary little fuel tank filled with purge... Fuel filters... Anything else? Any gaskets? thanks |
#29
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Nope...
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Here's a good step by step. Thanks DG!! http://dieselgiant.com/injectorcleaning.htm I don't go with the fancy holes in the jar lid or custom return line. I just stick the cigar line in the secured jar.
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1980 300D - Veggie Burner ! |
#30
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You will love the results of the purge when you do it.
Here is the pictorial on how to get it done. http://dieselgiant.com/injectorcleaning.htm
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1981 300D 147k 1998 VW Jetta Tdi 320k 2001 Dodge Ram 2500 141k 1979 300D 234k (sold) 1984 300D "Astor" 262k(sold) Mercedes How-To and Repair Pictorials I love the smell of diesel smoke in my hair |
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