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#1
06-28-2003, 10:27 AM
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injection pump o rings pressure delivery valves
my 1992 2.5 5 cyl turbo has a small leak on top of the injection pump.. I have the o-rings needed from my mechanic on the previous repair on my 1990..he only needed 5 but ordered 10 just to be sure and gave me the 5 50¢ rings he didnt use.. the reapir cost me 123.95 as i recall.. I also have the correct socket spline fitting to take out the pressure valves.. my question is since I have never done this repair is it simply losening the fuel line 13 mm nut that leads to the injectors and just refitting the oring in the pressure delivery valve? is this a simple D.I.Y. job or should i let the pros deal with it?
the leak is ever so small but it looks like a simple repair.. if anyone has attempted this and can give me some advice i surely would appreciate it! i would love to do it myself if its not to hard and save the hundred or so bux! thanks in advance! car has 140k on it and pump has never been fooled with
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1994 S-350 6cyl Turbo Diesel 158k 1998 300d 6 cyl Turbo Diesel 143K 1993 2.5 124 Turbo-Diesel 236 1990 2.5 124 Turbo-Diesel 228k 1983 SL-500 EURO W/HEATED SEATS 40K SOLD 1977 Jaguar XJ6 Coupe Antique Roadster 85K SOLD 1993 2.6 6 cyl 190 E 150k  SOLD 1992 2.5 124 Turbo-Diesel 204k RIP 1992 124 300 TD 265K OIL PUMP QUIT @ 85MPH 
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#2
06-28-2003, 12:26 PM
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Been there done that
Not well versed with your car, but I replaced springs and o-rings on my 87 300SDL it is not hard just keep everything very clean. I preasure washed the IP till it was spotless. It is very helpful to have dental pics and a magnetic screwdriver as the pieces are a little hard to fit and center (you can see when you get one out). Overall it is easy. Don't forget to properly torque them (VERY IMPORTANT)
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87 300SDL 220K 85 300SD 218K 82 diesel Chevette 440K 85 subaru 4WD turbo 83 4.1L buick powered cutlass THE TOY
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#3
06-28-2003, 03:40 PM
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Get new pressure valve seals and replace the old ones along with the o-rings on the holders.
You will need new plastic clips for the injection lines, they wil break when you remove the lines. Best to remove lines at both ends to give you more room, and you don't want to bend them, either, they are very frail compared to the older heavy ones. Torque the holders to 25 Nm twice without loosening, then to 30 nM without loosening with new seals. Peter
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1972 220D ?? miles 1988 300E 200,012 1987 300D Turbo killed 9/25/07, 275,000 miles 1985 Volvo 740 GLE Turobodiesel 218,000 1972 280 SE 4.5 165, 000 - It runs!
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#4
06-28-2003, 05:28 PM
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thanks
for all the quick replies!
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1994 S-350 6cyl Turbo Diesel 158k 1998 300d 6 cyl Turbo Diesel 143K 1993 2.5 124 Turbo-Diesel 236 1990 2.5 124 Turbo-Diesel 228k 1983 SL-500 EURO W/HEATED SEATS 40K SOLD 1977 Jaguar XJ6 Coupe Antique Roadster 85K SOLD 1993 2.6 6 cyl 190 E 150k SOLD 1992 2.5 124 Turbo-Diesel 204k RIP 1992 124 300 TD 265K OIL PUMP QUIT @ 85MPH
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