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Thread: PA-11 shut off valve.

  1. #1
    nesincg's Avatar
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    PA-11 shut off valve.

    Its time to revisit this. The last thread is too old. Of course I should have replaced the valve when I rebuilt 71H. But with what? I don't want a multi tank system. I just want a shut off valve.

    Luscombe doesn't seem to be making a valve anymore.
    Does the Dakota Cub STC cover a single tank? If so, how does it install in the same location?
    Is there any valve that I could use parts substitution for?
    https://www.westmarine.com/buy/groco...es--P015972722

    There was some leakage on the actual valve but the majority leaked from the connections. The pipe fitting ends bottomed out before they made a tight seal. I thought shortening the male end would cause it to seal better. It does not. Can this be fixed, for use in my tractor, or course? Put back the brass fittings and braze with silver? That works for freon in AC units.

    P_20180226_154534.jpg
    It is lucky I have dark red outside those stains.
    The aviator formally known as 89.
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  2. #2
    RaisedByWolves's Avatar
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    Last edited by RaisedByWolves; 03-01-2018 at 01:49 AM.

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    Steve Pierce's Avatar
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    Quote Originally Posted by RaisedByWolves View Post
    Looks like the same valve Luscombe was using.
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers

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    cubdriver2's Avatar
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    Pipe thread is tapered, try removing some material from the narrow end so it screws in farther? This is what the guys who assemble the piping at a gas station use on threads

    Glenn

    "Optimism is going after Moby Dick in a rowboat and taking the tartar sauce with you!"
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    nesincg's Avatar
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    Quote Originally Posted by cubdriver2 View Post
    Pipe thread is tapered, try removing some material from the narrow end so it screws in farther? This is what the guys who assemble the piping at a gas station use on threads

    Glenn
    I tried removing some and it didn't seat much better.
    The aviator formally known as 89.

  7. #7
    nesincg's Avatar
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    Luscombe did email me back today and said they had something. Waiting to hear back from them.
    The aviator formally known as 89.

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    scrap all the tie wraps while your in there, as far as im aware there is no approved on-off valve anymore specifc for a pa11 or a 90hp single tank supercub. you have to have a valve so i really dont thing it matters what you use, its not piper approved, so you just have to move on. correct me if im wrong. i have the luscombe in mine works great, nice handle. $70 when i bought mine, let us know what they are now.

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    nesincg's Avatar
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    Thanks Dan. This one you posted is 1/4 but this 3/8 might work if I make a mount. Like the price too.
    https://www.wagaero.com/fuel-systems...ff-valves.html
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    Quote Originally Posted by nesincg View Post
    Thanks Dan. This one you posted is 1/4 but this 3/8 might work if I make a mount. Like the price too.
    https://www.wagaero.com/fuel-systems...ff-valves.html
    I used these on my J3 wing tank install, they are nice


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  11. #11
    nesincg's Avatar
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    Never did hear back from Luscombe. Will work with wag aero valve.
    The aviator formally known as 89.

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    Talk it over with your mechanic. He may see the W-A valve as an unapproved part.
    Code 8 To our knowledge, these items do not carry an FAA/PMA, TSO, and/or STC, and no application is in process. These products are offered for sale only for experimental category aircraft.
    You can't get there from here. You have to go over yonder and start from there.

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    skywagon8a's Avatar
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    Quote Originally Posted by N86250 View Post
    Talk it over with your mechanic. He may see the W-A valve as an unapproved part.
    Code 8 To our knowledge, these items do not carry an FAA/PMA, TSO, and/or STC, and no application is in process. These products are offered for sale only for experimental category aircraft.
    Bear in mind that when these planes were built FAA/PMA, TSO, and STC did not exist. Piper used parts which were readily available at the hardware store. I suggest that you go to your local and look on their shelves. You may be surprised. Also if you look on the Piper drawings you may even find the name of the company which made the valves which may still (or it's successor company) be stocking those shelves.
    N1PA
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    The company that made the originals was IMPERIAL, they no longer exist. I dont think any can be found anymore. Guys have had the imperials on ebay in the past for 2-300 bucks. And i dont think theres an approved on-off fuel valve for a 11 or 90hp super cub that im aware of, so im thinking the only thing thats allowed is to put a rubber hose where the fuel valve was if your valve went bad and use a vice grips and crimp it shut when fuel is not needed. I wish someone would ask the FAA if a vice-grips would be ok beings you dont have to leave it attached. seriously. I will have to see but i really doubt any one is going to get a single valve approved. Very few certified planes with one tank. Even the cessna 150 valves price wise have went through the roof. Univair worked for years to get one approved for the j3 awhile back. My plane, i put a luscombe in, works great, but its a luscombe valve, approved for a luscombe but not for piper, does that matter?? doug

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    You guys that deal with the FAA types all the time it would be interesting if you would ask one of them, when no fuel valve is approved for a airplane and yours goes bad, whats the route to take, and let us know.

  17. #17
    JP's Avatar
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    Time to apply the Robin Olds rule...

    Sent from my [device_name] using SuperCub.Org mobile app
    JP Russell--The Cub Therapist
    1947 PA-11 Cub Special
    www.bloomerrussellbeaupain.com
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    cruiser's Avatar
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    McMaster Carr has a compact 3/8 threaded fuel valve if you are down to your last resort. Item 7910K83 has a funky handle that looks airplane or a ball valve, same page. I have not seen much from W.A. that I felt was of aircraft quality.

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    nesincg's Avatar
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    Well the wag-aero valve didn't work. It says it is a 3/8 valve, but it is a crapload bigger than the other valve. I bet it weighs 3 times as much. In the meantime, I was replacing the valve on my J-3 and noticed the sizes sure looked similar. Univair took this valve and modified it to work on the J-3. They then rubbed the name off of it. Anyone know what brand of valve this is?

    IMG_20180510_180551357.jpgcloser.jpg
    Last edited by nesincg; 05-13-2018 at 12:29 AM. Reason: Found it
    The aviator formally known as 89.

  20. #20
    nesincg's Avatar
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    Last edited by nesincg; 05-13-2018 at 12:40 AM.
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  21. #21
    skywagon8a's Avatar
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    Looks like a standard hardware store ball valve.
    N1PA

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    Why can't you use a super cub fuel valve, plug off the Right inlet, and placard the position "off"

  24. #24
    supercub's Avatar
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    What is this valve from?
    Quote Originally Posted by tempdoug View Post

  25. #25
    flybynite's Avatar
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    Chris,

    I had seen something a while ago for the Aviat line of aircraft replacing the Imperial valve with an Apollo. Here is a link to their service bulletin: https://aviataircraft.com/wp-content...5/05/hsb18.pdf

    I had heard of it referred to as Service Bulletin 11.

    The 76-101 is only a 1/4" valve though. A 76-102 is 3/8"

    https://www.amazon.com/APOLLO-76-102.../dp/B016AGUA6Q

  26. #26
    JP's Avatar
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    Does anyone out there have a CAD scan capability such that we can take a "real" PA-11/J-3 valve and render it to tech drawings?

    I, for one, will then proceed from there to a nifty machine shop operation nearby and have them assist me in making an owner manufactured part.

    Kind of like a ghost gun.

    JP
    JP Russell--The Cub Therapist
    1947 PA-11 Cub Special
    www.bloomerrussellbeaupain.com

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