Swapped bad engine ( timing chain failure) w/ used running engine (125k). Donor engine has been sitting for 2 yrs. Project car has been sitting for 4 yrs. Did the swap w/ mechanic friend who started engine in my absence before I could change filters, flush fuel etc. Car started and ran rough for 5 minutes then stalled. Has started and ran roughly a few more times. Now will not start. Changed filters, cleaned screen, tried to start on purge only, bled lines, replaced glow plugs w/ ones from bad engine ( they were new @ time of death). Wants to fire but won't. Get some partially burned exhaust from cranking. Glow plugs test at 11-12 volts and relay works ok. I have been systematically replacing parts w/ those from blown engine to try to diagnose.Still no fire. Any thoughts , help or offers would be welcomed. Thanks 51mack