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Help: Rollover Valve- Replace Valve or Tank?

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Old Aug 21, 2018 | 04:20 PM
  #1  
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Arrow Help: Rollover Valve- Replace Valve or Tank?


Turns out we have rodents in our garage.

Had a fuel leak and my local Ford mech dropped the tank to find this- gaping hole in what used to be the rollover valve. Per the books, Ford refers to it as an Evaporative Emission Valve.

Thought it to be an easy replacement, but per the service manual- the "valve cannot be removed from a composite tank", and my mechanic is echoing this.
A replacement tank has been located but at $900 and twice the mileage- I'd love to be able to retain my original tank.

A few questions for those with wisdom on this:
  1. Can the valve be replaced without replacing the tank?
  2. What is the valve part number? I can't find it anywhere...!
  3. What's my best fuel tank option (buy the salvage tank or is there an aftermarket solution worth considering?)
Many thanks!
 
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Old Aug 21, 2018 | 05:02 PM
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Not sure what manual you are looking at that says it can not be removed, The factory ford service manual list it as part number 9B593

quick check on eBay turns up this
https://www.ebay.com/itm/Ford-Vapor-...rd!95648!US!-1
 
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Old Aug 21, 2018 | 05:10 PM
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Fwiw .... tascaParts ford parts diagram doesn’t even show a vapor valve on the excursion but does show the part on the f250 tank.


 
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Old Aug 21, 2018 | 05:23 PM
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If I recall correctly, mine, which looks just like yours seemed to be fused/glued/bonded to the plastic tank and did not look to be a replaceable part. It's a vapor outlet only, I would get creative with a tube of silicone to seal it up while keeping the vapor passage clear.
 
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Old Aug 21, 2018 | 07:01 PM
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Originally Posted by pirate4x4_camo
Not sure what manual you are looking at that says it can not be removed

I have the 2005 service manual and did not find it there. Did find it sourced through internet searches, and my local Ford mechanic quoted it over the phone.
Expect that it's from an updated electronic service bulletin.

CAUTION: The fuel vapor vent valves cannot be removed or repaired on vehicles equipped with composite fuel tanks.
  1. Remove the fuel tank.
  2. Remove the fuel vapor vent valve.
    • Slide the clamp away from the fuel vapor vent valve and remove the tube.
    • Press down and rotate the fuel vapor vent valve counterclockwise and remove from the fuel tank.
CAUTION: The fuel vapor vent valve must be disengaged from the fuel tank before it can be removed. Rotate the fuel vapor vent valve counterclockwise to disengage from the fuel tank. Failure to do so can cause damage to the fuel vapor vent valve or the fuel tank.
 
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Old Aug 21, 2018 | 07:13 PM
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Originally Posted by pirate4x4_camo
The factory ford service manual list it as part number 9B593
So helpful- as always, Pirate. My 2005 manual speaks of the valve, but doesn't break it out separately from the rest of the components in the fuel system- as though it's integral to the fuel tank.
 
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Old Aug 21, 2018 | 07:21 PM
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Originally Posted by WE3ZS
If I recall correctly, mine, which looks just like yours seemed to be fused/glued/bonded to the plastic tank and did not look to be a replaceable part. It's a vapor outlet only, I would get creative with a tube of silicone to seal it up while keeping the vapor passage clear.
Thanks, Tom. I've unfortunately gotten more than vapor from it. For example, if I fill the tank up (auto cutoff level), I lose 1/8 gallon of spillage out of the valve. Wondering if it may also serve as a "rollover valve"? In any event- it sounds as though your assessment is the same as the bulletin and my mechanic- the valve is not (at least intended to be) removable on the plastic Excursion tanks.

Don't know that I have the nerve to silicone it. Plus, there are likely bits of plastic trapped in my tank that I wouldn't mind the opportunity to remove.
 
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Old Aug 21, 2018 | 09:26 PM
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Even if it is bonded to the tank, at this point removing it isn’t going to ruin the tank more then it already is...
see if you can un-bond it and then bond in the new one. Trick will be to find the correct adhesive to bond to the poly tank. Me thinks silicon isn’t the answer.
 
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Old Aug 21, 2018 | 09:36 PM
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Originally Posted by pirate4x4_camo
Even if it is bonded to the tank, at this point removing it isn’t going to ruin the tank more then it already is...
see if you can un-bond it and then bond in the new one. Trick will be to find the correct adhesive to bond to the poly tank. Me thinks silicon isn’t the answer.
Fair point and certainly worth the shot. Any adhesive suggestions for plastic to poly?
 
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Old Aug 21, 2018 | 10:44 PM
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Plenty of videos and what not on the google but I’d be inclined to go with something like this


edit....plastic is easy to bond to, poly is the tricky part especially when you add gasoline.

https://www.permatex.com/products/sp...or-repair-kit/


 
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Old Aug 22, 2018 | 07:39 AM
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Originally Posted by pirate4x4_camo
Plenty of videos and what not on the google but I’d be inclined to go with something like this
edit....plastic is easy to bond to, poly is the tricky part especially when you add gasoline.
https://www.permatex.com/products/sp...or-repair-kit/
Yeah, asked because every adhesive solution I've run across on the market is either approved for metal fuel tanks or plastic tanks, but never "plastic fuel tanks". Even the linked Permatex calls out "Not recommended for use on PLASTIC gas tanks."
 
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Old Aug 22, 2018 | 07:53 AM
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Originally Posted by Masterz
Yeah, asked because every adhesive solution I've run across on the market is either approved for metal fuel tanks or plastic tanks, but never "plastic fuel tanks". Even the linked Permatex calls out "Not recommended for use on PLASTIC gas tanks."

whoops... this is the one I would try even though it say “ not for plastic fuel tanks. “
https://www.permatex.com/products/sp...nk-repair-kit/
 
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