I Have An 85 F250 6.9.i Need A Diagram Please On How The Fuel Return Tee's Are Supposed To Be Plumbed.the Previous Owner Has Tee's Coming Off The Plastic Tee's In 2 Spots.the Chilton And Haynes Manual Don't Show Either One Of Them.the Return Tee Kit Only Has 1 Cap That Has Only 1 Nipple On It.the Old Owner Has It Looping From #1 Cyl. To #2 Cyl.also,where Should The Line From The Fuel Filter(not The Hard Line) Go.a Top View Of How It Is Supposed To Be Hooked Up Would Be Greatly Appreciated.thank You Much.

 

I tried to draw it out but I suck at art. Basically on my truck , from the front the driver's side front injector has one nipple, and then there is a U made out that ends at the passengerside front injector.. There is a line from that injector to the fuel filter. hope it helps.

 

Bear151556,so Basically,you Start At The Front Driver Side Injector And Go Towards The Rear And Around To The Pass. Side Front Injector.that Front Pass. Side Injector Has 2 Nipples Right.the 2nd Nipple Is For The Hose That Goes To The Fuel Filter.

 

Bottom line is it don't matter. Run the hoses anyway that is handy, as long as the fuel has somewhere to go.

 

Also don't forget ther return line from the IP should have a couple of tees in it so the injector lines get tied to it.

Drivers side: 2 - 4 - 6 - 8 - Return line from IP
Passenger side: fuel filter return - 1 - 3 - 5 - 7 - return line from IP
Return line from IP picks up the injector return line at the back of the intake manifold then goes to fuel tank selector valve.

 

Yep, I see that there is a T between the first and second injector on the driver's side. Other than tat you have it. the line from the injector pump goes to the T.

 

The replacement kits are not the same as OEM. They have too many nipples. I ran mine in a circle and bypassed the fuel filter all together. my ip return line runs down the intake manifold to the rear of the driver side head from there it t's to the return lines from the injectors to the fuel tank return. As far as the fuel filter nipple goes, I used a short piece of fuel line and a new clean stainless bolt to plug it with.

 

What's The Purpose Of The Fuel Filter Return Line Anyway.

 

not really sure??? I guess just somewhere to go???

 

Smiller4597,thanks For The Info.got It Hooked Up Today.

 

Fuel filter header/return line has a check valve to allow air in the filter to got directly to the return line without going to the IP.