79jasper
Chickenhawk
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Crude, but works. (Editing (color) was done on my phone)
ZWilson03, hope this works.
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IDI Fuel path
- Thread starter 79jasper
- Start date
Crude, but works. (Editing (color) was done on my phone)
ZWilson03, hope this works.
Sent from my USCC-C6721 using Tapatalk
79jasper
Chickenhawk
I thought about that, after I was done. 
Was gonna change it to "Supply vacuum."
Sent from my USCC-C6721 using Tapatalk
Was gonna change it to "Supply vacuum."
Sent from my USCC-C6721 using Tapatalk
OLDBULL8
Good Morning Ya'll.
Nice job. There are so many threads asking about this fuel routing. Only one thing I question about the drawing, shouldn't it be noted that there is an ORFICE in/at the tee to tank return line.
ZWilson07
Cowboy
Thank you Jasper, and you're welcome everyone
But yeah I saw your fuel path post about the psd, and the fuel pump cutaway for psd and I was like OMG we need a good one like this for the IDI's.
Also how does the fuel return work when it comes from the passenger side injectors back to the fuel filter? Does it just become part of the supply again and so only fuel that comes out of the driver's side injectors are the only ones that technically send it back to the tank?
Gotta keep it real simple for some of us
But yeah I saw your fuel path post about the psd, and the fuel pump cutaway for psd and I was like OMG we need a good one like this for the IDI's.
Also how does the fuel return work when it comes from the passenger side injectors back to the fuel filter? Does it just become part of the supply again and so only fuel that comes out of the driver's side injectors are the only ones that technically send it back to the tank?
Gotta keep it real simple for some of us
icanfixall
Official GMM hand model
Thank you Jasper, and you're welcome everyone
But yeah I saw your fuel path post about the psd, and the fuel pump cutaway for psd and I was like OMG we need a good one like this for the IDI's.
Also how does the fuel return work when it comes from the passenger side injectors back to the fuel filter? Does it just become part of the supply again and so only fuel that comes out of the driver's side injectors are the only ones that technically send it back to the tank?
Gotta keep it real simple for some of us
The return off the filter that enters the passenger side return does not go back into the fuel filter. Its out of the filter into the return line anyplace that convenient. I put mine back into the passenger side return caps between cylinders 1 & 3 with a Tee I got in the help section at vatozone...
riotwarrior
Full Access Member
DId a little edit but added to the thread on hunt for air....
Return line routing has been changed 3 or 4 times by IH and Ford, depending on model and year. Trying to make a specific drawing that shows it would never be correct for somebody. The rule of thumb here, is that fuel must leave the injection pump and injectors, and return to the tank, and that air must leave the filter head and return to the tank.
icanfixall
Official GMM hand model
Thats very good information you posted Mel. I try to always explain the fuel and leaves the filter bleed off and the top of the injection pump and the injecters. All this fuel enters the return line never to be send back to anyplace but the fuel tanks. And only then will is ever return to the lift pump. Then the filter. Then the injection pump. Then the injecters and the path starts all over again. You said it simpler.
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