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Unread 05-11-2013, 12:56 PM   #1
johng
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2005 KJ Liberty 
 
Join Date: Mar 2006
Location: Deland, Florida
Posts: 38
CRD fuel bleed won't close

THis morning I made a trip, and when I started the jeep to come back, had to bleed the fuel system at the filter housing. It's been getting more common lately. I keep the right wrench with me...

Anyway, I got home, it sat for a while and lost all prime when I went to start it. I went to bleed it again, and discovered the bleed screw does not stop flowing. It feels like it's seated. I don't want to put more torque against it because it feels like that's about all the threads should take.

THe good news is I think I know why its been loosing prime. THe bad news is I don't have a solution.

When I pump the prime now,it comes right thru the bleed screw. I took the screw out and cleaned it and inspected it. No galling on the screw - but I don't know what shape the end of the screw should be. I know its a bevelled screw, but is the end supposed to be rounded a bit or flat.

Any suggestions - do I need to clean the housing out? How? Do I need a new screw? A new housing?

I searched all over and haven't seen anyone else with a bleeder that won't close...

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Unread 05-11-2013, 05:00 PM   #2
oilbuner
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2006 KJ Liberty 
 
Join Date: Feb 2011
Location: Southport, Florida
Posts: 416
Are you sure its leaking from the bleed screw? Do you know about the heater and the overheating problem with the housing? This is a very common problem with our fuel heads. The fuel heater wire is located on the housing on the right side "drivers side". There are 2 wire connections on the housing. I live in FL and don't need the heater, so just keep it unplugged and taped off with contact grease. These heaters can over heat and cause leaks and or fire. in worst case.. Unplug the heater wire and if there is fuel in the plug socket thats your problem on loosing your fuel prime. If its already leaking you will need a new housing and may concider an upgrade? If its the screw seat in the housing, an o-ring for a temporary fix might help, but don't play any games with the fuel. Please let us know what you do. Oilburner
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Unread 05-11-2013, 06:00 PM   #3
johng
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2005 KJ Liberty 
 
Join Date: Mar 2006
Location: Deland, Florida
Posts: 38
No, it's not the heater plug. That's been unplugged for a long time.


I confirmed that it is coming thru the bleed screw by blocking it with my finger while priming the pump. It's definitely all coming thru the bleed channel, not anywhere else, even the threads on the bleed screw stay dry.

The plug itself doesn't have any gouges or anything. Hard to tell about the threaded opening in the filter housing. Not easy to get an eyeball in front of it, and fingers can't get in there to feel the sealing surface.

Have not disassembled it so far. I did stick my iphone down there and took picture down the hole, but nothing obvious there either.

I get the feeling if I can't figure it out, I'm gonna have to go with a filter housing replacement anyway.
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Unread 05-11-2013, 09:27 PM   #4
oilbuner
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Location: Southport, Florida
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My bad have you removed the bleed screw completely? Try looking at it with a flashlight an a mirror. Im sure you have tried pumping the crap out of the primer to flush it out? Their must be some trash stuck in it... let me know what you find. Oilburner
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Unread 05-13-2013, 05:59 AM   #5
johng
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2005 KJ Liberty 
 
Join Date: Mar 2006
Location: Deland, Florida
Posts: 38
So, I gave it another shot. Cleaned, blew it out with a compressor, etc. Got a look down in the housing and did see that there was galling from some sort of particle. Never actually saw any debris come out of there though.

Now, the heat may have been getting to me, but I didn't remember that I had the old Lubrication Specialist bleeder kit sitting on the shelf. That replaces the existing bleed screw with a 90deg stopcock. I screwed that in this morning and am off to the rat race. Problem solved.
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Unread 05-13-2013, 07:46 AM   #6
oilbuner
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