Fuel heater plug leaking

[DowneyB]

Hey, I gotta question: The fuel heater plug on my fuel filter is leaking fuel when the truck is running. Is there a way to replace just the plug in the head or do I need a new fuel filter head?

Thanks,


Brock

 

[Longesst]

You should just need to replace the o-ring.

 

[DowneyB]

That would be a relief. I couldn't figure out how it came apart earlier, and I don't have the internet at home.

 

[Longesst]

Iirc you take the filter off, there is a nut up in the top of the housing. 1 1/8" maybe? Anyways, a deep socket should make it past the threaded stud. You will push the heater down from the top. Ford says they don't carry the o-ring anymore so I just went to the hardware shop and got a good assortment. Hope this helps, it's been a while since I did mine. Some of these more knowledgable guys can give you specifics if you get stuck.

 

[RLDSL]

It's a special oring, you can get it at International, but ford wont sell one without a whole new filter head.

 

[icanfixall]

True... Only the Navistar International shop will have the o ring... They cost about $2.50 each...

 

[punkmechanic]

I used one from the assortment box at work and it was a tight fit, but sure didn't leak. find an oring thats just barely loose, grease the daylights out of it, and press hard when you push it back through.

just my .02. I will try one from international sometime and see which works better.

punk

 

[icanfixall]

I found the international o-ring part number. Its 18110,53C1. The parts counter will have no problems finding this for you. If they do then they aren't a parts counter person.....