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Old 09-10-2003, 06:47 PM
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dmorrison dmorrison is offline
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Join Date: Dec 2002
Location: Colleyville, Texas
Posts: 2,694
I normally get a little pressure release when I pull up to the gas/diesel station. In both the SL and 300TD. If you llok at the picture, the large one. Item 69 and 79 show the feed and return line. Fuel is sucked into the pumps, One or two. the fuelis used and what is not use is sent back, under a little pressure to the tank. This will slightly pressurize the tank. The item 73 and 73a in the picture is a negative relief valve. Its installed so you don't have the negative pressure that your talking about.

1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car
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