How did the tank screen look? Did it need replacement, or just cleaning, or nothing at all?

When you say you have 7-8 PSI at the ALDA...Where exactly did you check for pressure?

Adjusting the ALDA screw should not fix the problem you have. Look elsewhere.

Does the car smoke?

__________________
1976 BMW 2002- 100k
1995 BMW 325i 175k
1984 Mercedes Benz 300D Turbo Diesel- 270,000 mi

1981 Mercedes Benz 240D- Estimated 300,000+ mi Returned to the earth

hello,

Brian, it was clean?

84300DT........I did by-pass both turbo protection devices, i did the wastegate first then the ALDA overboost unit.

MBZKID..........i used a "Y" connector next to the ALDA unit.

The more I drive it the more it seems like fuel starvation?
Runs OK on a flat road with moderate acceleration!


Brian

Just a thought..... What are the specs for fuel pressure at the injectors?

maybe he could assure he's getting the correct fuel pressure....But if it's a fuel delivery issue it could be injectors, pump, leaky primer, cigar tube, etc.....

If you think it's the fuel delivery system, what have you checked in that system to assure proper working order?

please excuse my newbieness

well, if you have cleaned your tank screen, changed your filters, cleaned the banjo bolt on the back of the engine.

Next I would check the screw on top of the filter for air leaks... I would be
looking for air leaks into the fuel system.

then next I would run a diesel purge and adjust the valves.

I would put a BB in the like connected to the EGR valve...or remove it all together.

then I would open the boost side of the turbo and check for play in the turbine by wiggling... and I would replace the rubber O ring that allows boost to flow over. (large rubber fitting, they become hard and brittle with time)

and my next step after that would be to crack open the exhaust side of the turbo and check and see if my waist gate was sticking open....a small oil leak from the turbo oil seal could cause carbon build up around the waist gate and it might not be closing fully and that could cause a lose of boost. In addition Garrett turbos are notorious for cracking around the waiste gate. The metal housing will actually brake. The rebuild manual says to reuse the cracked housing unless the crack is to large.

Hello,

Good news. I have fixed my problem!

I went one step further with the diesel fuel lines and filters.
I got my air hose and blew out the lines.

Now it runs great.

Thanks for all the support and input.

Brian

Exactly which lines did you blow out? If you blew out the fuel lines (and ended up with them full of air), it's not about to run "great"

He probably primed them with the hand pump before he started it.