1980 300 SD---Is lots of fuel supposed to leak out when using the pump?
Do you rebuild or replace the hand pump?

Replace it - it's not supposed to leak.

Len

Replaced it and it cleared up my rough idle also. Thanks, Nate

Here you go:

http://www.peachparts.com/shopforum/showthread.php?t=109076

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Peach Parts W124.128 User Group.

80 280SL
85 300SD
87 300TD
92 300D 2.5 Turbo
92 300TE 4Matic

if ya run grease, stick with the old style. more robust.

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1984 123.193 372,xxx miles, room for Seven.

1999 Dodge Durango Cummins 4BTAA 47RE 5k lb 4x4 getting 25+mpgs, room for Seven.