Crap. We will have to try the poor man's adjustment, no drip tube and it will be about 15 years before I understand the millivolt thread.

__________________
1981 300D 205,000 mi.

OK, I just dug up my old injector test sheets for my '82 300D and '83 240D. Here are the pop pressures I observed before and after the nozzle swap, with no adjustments:

300D before -- 128 131 129 130 130
300D after --- 138 135 139 135 136

240D before -- 109 104 102 109
240D after --- 114 110 110 112

No adjustment necessary. And like I was saying the new nozzles brought the pressures up, not down.

__________________
2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL

These do need adjustment. The minimum for the 240 is 115 bar. In both engines the entire set should be at a variance no larger than 3 bar.

The ones I've seen go down with new nozzles were the 'turn nut to adjust' type (Cummins, and some Detroit Diesel two strokes.) Also, the old Mercedes with the banjo connector will do it. It's not common but it happens.

__________________
1987 300D (230,000 mi on a #14 head-watching the temp gauge and keeping the ghost in the machine)
Raleigh NC - Home of deep fried sushi!

Actually no, 115 bar is the optimum pop pressure, not the minimum. And MB calls for a maximum of 5 bar variation across the set, not 3 bar. Used nozzles can pop as low as 100 bar and new nozzles can pop as high as 125 bar and still be within MB spec.

__________________
2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL

I hope when people read the specs above they ask themselves which of the above specs they feel their engine would run the best at?

Also what I remember reading is-With new injection nozzles 115-123 bar and- with used injection nozzle 100 bar.

I take this to mean that if I replace the Injector Spray Nozzle (rebuild the whole injector to like New) the min opening pressure is indeed 115 bar.

If I test a used injector and the Spray Nozzle is still good 100 bar is the min allowable opening pressure.
However, it did say a max difference between all injectors of 5 bar.
Where I read the Info:
http://www.pauldrayton.com/uploadfiles/merc/Service/W123/w123CD2/Program/Engine/615/07-137.pdf

__________________
84 300D, 82 Volvo 244Gl Diesel

The 100 bar spec is for used 220 and 240 nozzles. This was changed when the 256 and then the 261 designs were put out on the market. It's covered under 07.1-67XX and "programmed repairs"

__________________
1987 300D (230,000 mi on a #14 head-watching the temp gauge and keeping the ghost in the machine)
Raleigh NC - Home of deep fried sushi!

The nozzles that came in & out of both cars were Bosch 240/.

__________________
2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL