fuel filter problem...

[SharkDiver]

Im having a problem getting the cap on all the way with the new style filter with the Oring on it. Ive taken it off and tried to put it back together 3 times and I get the cap on all the way untill the last 1-2 rotations and it stops. I even put the cap on without the filter in to make sure it would go all the way on and it goes on good. I tried putting the filter in the HFCM first then putting the cap on and it still stops a few turns short of tight. Whats the deal?? I have the filter snapped all the way into the cap and when I put the filter into the housing it feels like its all the way in.
The old style filter doesnt have a Oring on the end of it does it? I never changed the fuel filters so I dont know. Maybe the Oring came off and is jammed up in there or something.
So what I did was start the trk up to see if its leaking with the new filter in and its not leaking. What could the problem be?? I dont want to leave it like this for long.

Shark

[Lbs]

Bump. I'm having the same issue. What's the deal with this? The new style filter on the frame rail is a bit longer than the old style and it has a o-ring on it.

[travisH3]

yeah but the o ring is supposed to go further in to seal in there. did you try putting a touch of oil or atleast diesel fuel on the o ring to lubricate it some?

[worldwide73]

They are made that way for the 6.4 trucks so we get them too. I'm still using the old style ones, and put and pre-pump spin on filter on so I don't have to worry about a little bypass in the hfcm.

[amdriven2liv]

Try putting the filter in first, then do the cap.

[howell_jd]

I use the same method as Sean above; filter first, then cap. I have been changing my fuel filters for quite some time using both styles - new style now all the way with no problems on fitment.

Jonathan

[sinner6.0L]

i've always done filter first then cap. seems easier

you could also try lubing the oring with a little motor oil. i usually do that too

[amdriven2liv]

Originally Posted by howell_jd

I use the same method as Sean above; filter first, then cap. I have been changing my fuel filters for quite some time using both styles - new style now all the way with no problems on fitment.

Jonathan

Jonathan, I have brought this up before. When I changed the lower fuel filter the first time, I had a heck of a time getting the cap all the way on. I pulled it back out (old style filter) and looked in the hole (of the filter). There are things that have to line up on something in there. I thought about it and wondered if when I have the filter in the cap, I might not be getting it lined up at the right moment, thus binding the filter in the housing.

So, I said screw it, and put the filter in first, and it went all the way down.

Since then, I have always put the filter in first. I know it is recommended to snap filter in cap then screw it in. I don't and I haven't had any issues.

Sean