1987 MB 300D 603 engine

[DaveMcDonald]

Hope I can find someone who can give me some insight. I have a 1987 Mercedes 300D with the 603 6 cyl diesel. I had the engine rebuild and it sat for a while ( 2yrs ) I installed the engine, and just recently started it and drove it to verify everything was functioning, it was runnung excellent. I did work on it and it was in my garage for 3 weeks. Today, I drove it and it didnt seem to have much power. I changed the primary and secondary filters, now it wont start back up. It started this after I installed the secondary. I have checked all fuel delivery issues, cracked the injector lines to relieve any air pockets or whatever...nothing. It will start for 5-10 seconds then stop...any help would be immensley appreciated. Thanks. Dave 407-716-6212.