What is this???
Moderator
Joined: Jan 2001
Posts: 56,983
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From: Virginia
Same as my dads '89 E150 van with 5.0 EFI engine. I checked it thinking that was why the engine wouldnt run anymore and there was minimal fuel pressure. Took the bottom reservior off and there was no filter. I looked online and there was no listing for a fuel filter for this application. Ended up being the lift pump in the tank that took a crap and I had to drop the fuel tank and replace the fuel pump.
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Tuned
Joined: Aug 2016
Posts: 280
Likes: 27
From: Abilene Ks
This one had the filter cartridge inside, and there is another inline filter ahead of the frame mounted fuel pump
Lead Driver
Joined: Apr 2002
Posts: 5,311
Likes: 1,243
It's a combination filter and tank selector valve? I think if the valve portion is working then stick a new filter in it with the proper O-ring and carry on. If you can't get the original o-ring to seal try the smaller one. If they both fail to seal use a caliper to measure the diameter of the groove where the o-ring sits and order one on line or at your local parts store. Be sure everything is clean, no dirt in the seating area of the o-ring. If you try a little grease or oil be sure to put it together without contaminating with dirt the greased seal.
O-rings develop hard spots and flat spots and stop sealing after many years. So getting the proper replacement is the way to go.
O-rings develop hard spots and flat spots and stop sealing after many years. So getting the proper replacement is the way to go.
Thread Starter
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Tuned
Joined: Aug 2016
Posts: 280
Likes: 27
From: Abilene Ks
It's a combination filter and tank selector valve? I think if the valve portion is working then stick a new filter in it with the proper O-ring and carry on. If you can't get the original o-ring to seal try the smaller one. If they both fail to seal use a caliper to measure the diameter of the groove where the o-ring sits and order one on line or at your local parts store. Be sure everything is clean, no dirt in the seating area of the o-ring. If you try a little grease or oil be sure to put it together without contaminating with dirt the greased seal.
O-rings develop hard spots and flat spots and stop sealing after many years. So getting the proper replacement is the way to go.
O-rings develop hard spots and flat spots and stop sealing after many years. So getting the proper replacement is the way to go.
Thread Starter
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Tuned
Joined: Aug 2016
Posts: 280
Likes: 27
From: Abilene Ks
I bought a NAPA brand filter that had the correct large diameter O ring. What can I use to keep the silly thing from slipping out of the groove on the cover? Vaseline? There was also another O ring in the box, about maybe an inch and a half OD, where would it go? Or did they include that for other applications? I did not recall seeing a smaller one on mine
Lead Driver
Joined: Apr 2002
Posts: 5,311
Likes: 1,243
I bought a NAPA brand filter that had the correct large diameter O ring. What can I use to keep the silly thing from slipping out of the groove on the cover? Vaseline? There was also another O ring in the box, about maybe an inch and a half OD, where would it go? Or did they include that for other applications? I did not recall seeing a smaller one on mine
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Tuned
Joined: Aug 2016
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From: Abilene Ks
If the mating surfaces are groove on one side, flat surface on the other, I would use a very light coat of permatex #2 in the groove and on the side that meets the flat surface a light oiling with a drop of oil on the o ring. Just before screwing it on. Clean up both mating surfaces first.
Moderator
Joined: Jan 2001
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From: Virginia
I skimmed over this link and didn't see anything except in one illustration it had a "filter grommet".
https://www.supermotors.net/registry/2742/66025-2
https://www.supermotors.net/registry/2742/66025-2
Lead Driver
Joined: Apr 2002
Posts: 5,311
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The groove for the large O ring is in the cup. So the O ring will be held in by gravity. I would only use the permatex if it's needed to hold the O ring in place and only a tiny amount. Otherwise a little oil on the O ring will probably work just before screwing it on.
Lead Driver
Joined: Apr 2002
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I would not go too crazy with tightening up the filter cup. Treat it like a spin on oil filter. Make contact plus 1/2 to 3/4 turn. Over tightening has fouled O rings for me before. This one should be new and stout so no worry about flattening and splitting it. It looks to me that hand tight is the way to go. Check for leaks.