My 1993 300D 2.5 turbo has a fuel leak. It is coming out of the top where the fuel lines feed the injectors. It has a splined nut and collars that hold them in place. I have looked through the manual and can't find anything about replacing these seals. What kind of material are these seals? Are they copper washers or o rings? How difficult is this and where can I get a socket or box wrench for this spline?
Donnie

I am not that familiar with your model, and it is not clear from your post exactly where the leak is. I believe you are saying the leak is at the top of the injection pump. If that is the case do a search on the subject of fuel leakage from the injection pump fuel delivery valves. This is a common problem, and relatively easy to fix.

If another member with more specific information has the time they may offer better suggestions, specific to your model. But I think you need to confirm exactly where the leak is. Good luck, Jim

__________________
Own:
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

Owned:
1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)

Sounds like delivery valve seals and crush washers. If you do one,do all.

OM60_series IP delivery valve reseal

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

How ironic. I just did mine yesterday. O-rings and crush washers solved the problem !!

__________________
87 300SDL - 215K Miles !!
99 F-350CC Dually PSD - 190K
86 300SDL - 189K
All on B-100