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Ford 6600 air in fuel line

J

Jono80

New User
Hi Guys
Have a problem with ford 6600.
If i leave at idle for five minutes or so it will die when i rev it after idle for while.
I then bled to re start
Has a lot of air bubbles coming from double fuel filter bred screw.
Also bit from injector if cracked open.
Cav pump also has leak but does not affect running.
You can run on wood splitler all day and wont miss a beat only when left a low revs to long like idle.
Any advice will help.

Slow fuel feed from tank ? Tap leaking in air as it seem loose to move?
 

Welcome to YT
If fuel is flow is slow coming out of fuel tank then you need to determine the cause & correct it. Fitting in bottom of tank probably has debris in it.
 
Air in a fuel system is a funny thing..
It can act differently on 2 identical machines..
ANY connection can suck air..& there are a lot of connections.
& just because it doesn't leak, doesn't mean its not sucking air..
Like I said, Its a funny thing..
SOME systems run the injector return line back to the fuel tank,
while others run the line back to the filter head.. so if you have a leak/air at the return lines, its going straight back into the filter head to be put IN the inj. pump..
IF you have a leak anywhere on/in the system.. chances are, ITS SUCKING/producing AIR.
There IS NOT 1 specific area this happens to..
I WISH I could say, YUP, just tighten this up or replace these gaskets.. but it doesn't work like that..
Personally, I would get the leak fixed & change the return gaskets on top of the injectors, for starters.
 

You are not clear on how it runs under a sustained load. A wood splitter is just running at high idle with an on-off load. I was having a problem with my 8240 sucking air one time. I snugged all of the fittings and the problem went away and didn't come back.
 

Take the line loose from the tank fitting and check fuel flow from the tank, if there's only a trickle you have a plunger screen or fitting.
Also have you changed filters lately, some have made the mistake from installing the rubber sealing ring in the wrong location and on some filters it will block fuel flow.
 
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