Screens in back of head fittings?

MeTo · May 22, 2016

Do the fuel fittings on the back of each head have a screen in them? I was just reading a fuel thread which had a picture showing a before and after screen removal. It would be an un-needed restriction in my case. Truck in sig.

ghohouston · May 22, 2016

Yes they do, its actually a check valve. You can drill them out a bit bigger. I dont remember what exactly i used to do it with, but i think i used a dental pic to pull the snap ring out first.

MeTo · May 22, 2016

Hmm, would you know why Ford put check valves in the fittings? How difficult would it be to remove the fittings?

I'm shoring/tiding things up. I have efuel and a regulated return. How big of a job is it to remove the stock steel fuel lines on the engine? Could it be done by just removing the air conditioner compressor? Tanks, selector valve, frame rail fuel lines, fuel bowl, and mechanical pump are already removed.

ghohouston · May 22, 2016

MeTo said:
Hmm, would you know why Ford put check valves in the fittings? How difficult would it be to remove the fittings?

I'm shoring/tiding things up. I have efuel and a regulated return. How big of a job is it to remove the stock steel fuel lines on the engine? Could it be done by just removing the air conditioner compressor? Tanks, selector valve, frame rail fuel lines, fuel bowl, and mechanical pump are already removed.

I imagine they were concerned with drainback issues. Which part of the steel lines are you talking about? There are several "sections" of them.

79jasper · May 22, 2016

Sounded like the stock 3/8 and 5/16 lines coming from the frame.

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MeTo · May 23, 2016

79jasper said:
Sounded like the stock 3/8 and 5/16 lines coming from the frame.

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Yes, I'm talking about the pipes that are on the front corners of the engine. There are three, fuel bowl drain, fuel supply and fuel return.

79jasper · May 23, 2016

I'm not sure how you go about removing them.
I'm guessing you'll have to remove all the front accessories. But pull the whole brackets instead of one piece at a time.

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ghohouston · May 23, 2016

I believe if you remove the drivers side accessory bracket, you can snake them out. They both have quick connects down near the oil cooler where they unhook from. When i went to e fuel, i used all super duty parts, and luckily, the super duty upper engine fuel lines went right in place of the obs. I didnt like the idea of splicing rubber lines onto metal.

psduser1 · May 23, 2016

ghohouston said:
I believe if you remove the drivers side accessory bracket, you can snake them out. They both have quick connects down near the oil cooler where they unhook from. When i went to e fuel, i used all super duty parts, and luckily, the super duty upper engine fuel lines went right in place of the obs. I didnt like the idea of splicing rubber lines onto metal.

I used 5/16" and 3/8" compression fittings, and used the stock SD lines on one truck. Stock hp, seems to be just fine.

ghohouston · May 23, 2016

The compression fittings werent so large in diameter that the rubbed on the block/accessory bracket, or were you able to bend them, or???

psduser1 · May 24, 2016

ghohouston said:
The compression fittings werent so large in diameter that the rubbed on the block/accessory bracket, or were you able to bend them, or???

I made the connections down on the frame, and used the lines up the front as they were.