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Purge problems

jordi1976

jordi1976

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Terrassa, Barcelona, (Spain)
Hi sirs, my 94 6.5 td,after some days without run,needs purge the diesel circuit, anybody have a diesel diagram for see if I no have check valves in the circuit, and what is t'he correct location for them?
Thanks for your aid
 
only check valve I'm aware of is the one in the lift pump. I'd put a piece of clear tubing on the return line coming out of the IP and see if you are getting any air after you get it started.
 
If after running you are loosing prime either a bad lift pump or a leak in the fuel line. Keep in mind air getting sucked in here, not always a visible leak of fuel going out.

Do the 1/4" clear line AKdriver mentioned, it is a great permanent diagnostic aid.
 
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