Fuel Tank Diverter Selector Valve

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rtadams89

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I have a Fuel Tank Diverter Selector Valve (NSN 2910-00-977-5495) from a 5 ton that is stuck in one position. Any recommendation on getting it unstuck? Are rebuild kits for this thing available or do I have to buy a replacement?
 

rtadams89

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Took a look at that thread and disassembled my valve. Nothing seems wrong, even the o-rings look good. Not sure why it was stuck, but it moves freely now that I've put it back together, so hopefully it stays that way.
 

msgjd

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upstate ny
being of a tapered brass design, it may have been tapped with a hammer at some point, or some other tool dropped on it, or even a boot heel. Or dropped on its head. Or easier still, with the lack of sulphur and other lubes in today's fuel, any taper valve can seize just by pushing down on it while turning it. Did that once and learned from it.
 
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rtadams89

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Well my issue returned and worse than ever now. To get the valve out this time I had to thread a slide hammer into the retaining bolt hole on the top of the valve handle and gently tap it up and out. Still looks clean, no scratches, no debris, no idea why it gets stuck. If I just drop the valve core into the body and let it settle in for a few seconds, it becomes stuck. Running my finger around the inside of the valve body I don't feel any burs or other issues.

I gotta wonder, how is this thing not expected to get stuck? Just like a drill/mill/lathe tooling with an R8/Jacobs/Morse taper, it seems like this thing would bind up by design.

Any ideas for how to keep this thing working or is it time for me to just replace it?
 
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