[Bill1013]

What is inside the fuel return line orfice to the filter top mnext to the schrader valve. Did a clear line check for air and had lots of air back to the filter. Couldn't blow or suck thru the orfice, so ran a needle thru it and retried air check, now the air goes back into the filter and clears to solid fuel. There seems to be some kind of check (rubber ?)inside the fitting. Motor seems to run alot quieter now. /ubbthreads/images/graemlins/shrug.gif

OLDBULL /ubbthreads/images/graemlins/smokin.gif /ubbthreads/images/graemlins/smokin.gif /ubbthreads/images/graemlins/warmsmile.gif

 

[cdnsarguy]

There should be a check ball and spring....... you can remove the whole thing from the filter header....... carefully take it apart and check the ball and spring.

[ QUOTE ]
now the air goes back into the filter and clears to solid fuel.

[/ QUOTE ]

That would be reverse of what is intended....bleeding off any filter header air to the return lines is it's intended purpose.....so double check that, do you have the loop in the clear line to indicate which way fuel/air is going.

 

[dlblack]

I order a new Orfice fitting today from the ford place. As i am having starting problems and there are no spring in the check valve orfice fitting any more. The new ones must have a rubber reed valve or something. The one i took out of my filter houseing has no spring. But ford parts man says this is the rite one i need. I should get it tomorrow and see what it looks like.
Dwight

 

[cdnsarguy]

DL......... good info please post the part # of the newer design.

 

[Bill1013]

Pete: Look at dlblack pics pg.2 filter. Mine is similar IH 1809433C1 but the temp sw. is next to the barbed orfice fitting. Hooked a clear surgical tubing from fuel supply at #1 cyl. back to filter, didn't get flow either way until I stuck a needle thru the orfice, must have been plugged up, but now I get flow back to the filter which is prolly wrong. Got to order a new fitting like he did. Must be a rubber reed valve like he said. Tried to get it apart but could'nt. /ubbthreads/images/graemlins/shrug.gif

OLDBULL /ubbthreads/images/graemlins/smokin.gif /ubbthreads/images/graemlins/smokin.gif /ubbthreads/images/graemlins/warmsmile.gif

I see you posted while I was typing this one. /ubbthreads/images/graemlins/biggrin.gif

 

[arthurgoboom]

If you're getting flow back INTO the IP supply line, would that mean you have a return line restriction going back to the tank?

 

[CORY]

It's a rubber flapper check valve somewhere between 1 and 3psi I think. It's meant to maintain fuel recirc helping to keep fuel cool while keeping positive pressure to the IP inlet. The needle may have ruined it if it can pull in air from the drain line as things cool down after shutdown.

 

[dlblack]

I got the new little check valve today and installed it. It was made just like my old one with no ball or spring.
I tried to blow thru the new one and could not blow thru either end. But a human only has about 2 or 3 psi blowing i think.

The part number for this valve it E9TZ 9K061 A.

That part number is for my 91 E350 but i looked at the diagram on the computer at the ford dealer and it is the same number for a pickup.

I thought this was my problem because i was having spells of having to bleed my filter to get it to crank. But it was doing the same thing after i replaced the valve. I fixed the problem as i had pin hole in the rubber line between the fuel pump and the frame line.
Now that i have changed that hose and the new valve it sure fires up fast.
I am glad i changed it as it had gray paint on it. I do not think it was working because i could blow thru both ends.
Dwight

 

[dlblack]

I forgot to say how much the valve cost. It is $18.50
Dwight