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Need help bad 6 71 losing prime

horsetrans

New member
HELP i have a set of 1980 Detroit Diesel 6-71 and have primed them both they started fine ran for about 10 min.. or so the next day will not start back up please help
what i think? is a restriction of fuel maybe
I HAVE DONE THESE THINGS
replaced fuel takes due to leaking
primed fuel lines
and did this opened bleeder at motor then took 12volt fuel pump rite at tank and pushed fuel to motor and fuel came out bleeder fine maybe i did that wrong please let me know how to do this a diff.. way,,, I can prime and then they run for a few min.. then slowly stall
 
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