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#1
08-20-2007, 01:14 PM
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300SD fuel tank cleaning
Hello. I've been clogging fuel filters in my wvo burning '81 300SD. Crud seems to be coming from the tanks (I have two with the dealer installed auxilliary tank).
How does one remove these two tanks for cleaning? Is there another way to clean the bottom tank? My 300TDT has a plug in the bottom but the 300SD is a different arrangement. Thanks! Randy
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r2 '85 300SD 193k miles (parts) '81 300SD 400k miles-sold '84 300SD 205k miles-sold '84 300TDT 270k miles-sold '80 300CD 200k miles-sold 
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#2
08-20-2007, 02:07 PM
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try some startron. or just gut it out until the WVO cleans completely cleans the tank.
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1987 300TDT 1981 VW MKI Caddy 1.6 diesel, waiting on engine swap 1983 D-50 Power Ram 4x4 "Mitsubishi" 2.3 turbo diesel assorted gas powered crap and motorcycles RIP: 1984 300TDT, 1982 300TDT, 1984 190D 2.2, 1992 300D 2.5, 1987 300TDT, 1982 Maxima LD28, 1983 Maxima LD28, Isuzu C223 P'ups X3, 1983 Holiday Rambler 6.2 Banks turbo diesel, 1984 Winnebago LeSharo 2.1 TD, 1985 Allegro 6.5
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#3
08-20-2007, 02:48 PM
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So the WVO will clean the tank by itself? I can do that! I'll just get lots of filters... I'll also go get some Star Tron. Thanks!
R
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r2 '85 300SD 193k miles (parts) '81 300SD 400k miles-sold '84 300SD 205k miles-sold '84 300TDT 270k miles-sold '80 300CD 200k miles-sold
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#4
08-20-2007, 09:19 PM
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Whether WVO will clean it out depends on what the 'crud' is. If it's hydrocarbon deposits, yeah, the WVO will move it through the fuel lines - could be good or bad, depending on how much there is. If you've got algae in the tank, WVO will just make it worse.
I looked in to dropping the tank on an SD - never did go through with it though. If I recall correctly, you have to take out the rear seat to access some of the bolts. Once it's out, should be easy enough to clean with a pressure washer or something similar, after removing the fuel level sending unit.
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1983 300SD 467,000 km - 473 champagnermetallic location: 34°5' N 106°53' W (Socorro NM, USA)
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