Results 1 to 9 of 9

Thread: Fuel strainer and fuel valve both decided to start leaking at the same time. WTH?

  1. #1
    Alex Clark's Avatar
    Join Date
    Feb 2004
    Location
    Life Long Alaskan
    Posts
    3,125
    Post Thanks / Like

    Fuel strainer and fuel valve both decided to start leaking at the same time. WTH?

    Suddenly this week my fuel strainer started to leak.. So I turned off the fuel and then my main valve started to leak that same day.
    Very weird. Blue stains and buckets until I got her drained.
    Since they both happened on a cold morning, it makes me wonder...
    Thanks swedishcub thanked for this post

  2. #2

    Join Date
    Jan 2007
    Posts
    1,663
    Post Thanks / Like
    You lucky dog!!! Both are bad. The strainer leak covered up the valve leak until the end of the year! Just suck it up and fix both. Cessna found a way to build a plane around a fuel valve but it is really not that hard to pull the valve and rebuild. MAKE SURE YOU INDEX IT RIGHT WHEN YOU REBUILD IT. You would think because you have three screws on top of the valve how could it go wrong? Well it can, so pay attention as to how it go's together or it will index 15 degrees of center. You may need extra access panel in floor to do the job but it is worth it. It is about 8-10 hours to do the fuel valve on a good day. I had to pull mind because it was not indexed properly on the last rebuild, I had time to do it right so not a big deal. So it now when the weather is good.
    DENNY
    Thanks grbreen thanked for this post
    Likes SJ liked this post

  3. #3

    Join Date
    Oct 2012
    Location
    Chugiak, AK
    Posts
    16
    Post Thanks / Like
    If you're still lucky, you might only need about $1.89 of O rings to re-seal the valve. McFarlane also makes kits with various parts if you need them. In my case (1958 180A) last month, the valve needed more work and we ended up shipping it to McFarlane for repair - came back 2 weeks later with everything done for $653.00 plus shipping.

  4. #4
    Alex Clark's Avatar
    Join Date
    Feb 2004
    Location
    Life Long Alaskan
    Posts
    3,125
    Post Thanks / Like
    The pisser just started to drip. Out in the middle of nowhere of course. And I could get it to stop by snapping the plunger a half dozen times. But apparently the engine and air vibration on the flight home let it start leaking inflight. So I get back and turn off the master fuel,,, which even though it had worked every day all summer, suddenly decides to start leaking like crazy while in the off position.
    I suspect that the lower temps, ( it was in the 20s the night before) was the triggering event, or I managed to get some contaminated fuel.
    We put her on wheels yesterday and she is airing-out. Parts are on order....
    Hunting for any other leaks... kinda cold this morning.... reducing my motivation.
    Likes DENNY liked this post

  5. #5
    PerryB's Avatar
    Join Date
    Aug 2007
    Location
    Northern Calif.
    Posts
    1,798
    Post Thanks / Like
    I seem to remember another incident where O-rings didn't work so well when cold....
    After Monday and Tuesday, even the calendar says WTF !

  6. #6

    Join Date
    Dec 2016
    Location
    Canyon, tx
    Posts
    390
    Post Thanks / Like
    By the time you get to Texas and it warms up maybe it’ll have fixed itself

  7. #7
    Alex Clark's Avatar
    Join Date
    Feb 2004
    Location
    Life Long Alaskan
    Posts
    3,125
    Post Thanks / Like
    What a huge pain in the donkey that was.... Who the heck though that was a good spot for the selector? Good thing I was in there since somebody who did the last couple annuals left the cotter pin in the selector shaft instead of doing the roll pin and safety wire. That baby is roll pinned and safety wired now.

  8. #8
    skywagon8a's Avatar
    Join Date
    Mar 2008
    Location
    SE Mass
    Posts
    9,284
    Post Thanks / Like
    Quote Originally Posted by Alex Clark View Post
    What a huge pain in the donkey that was.... Who the heck though that was a good spot for the selector? Good thing I was in there since somebody who did the last couple annuals left the cotter pin in the selector shaft instead of doing the roll pin and safety wire. That baby is roll pinned and safety wired now.
    Alex, be sure to check the clearance between the flap handle quadrant and the fuel tube going forward from the selector. I had a brand new 180 which rubbed nearly through the fuel tube on the ferry flight home from Wichita. It is close. Cessna had a plastic anti-chafe tube over the aluminum which was inadequate.
    N1PA

  9. #9
    Alex Clark's Avatar
    Join Date
    Feb 2004
    Location
    Life Long Alaskan
    Posts
    3,125
    Post Thanks / Like
    Yes that cable was close. Another bizarre engineering mystery. I particularly enjoyed only being able to turn the B nuts 1/64th of a turn before repositioning the wrenches..
    The o rings in the fuel valve and the fuel strainer were pretty well shot. Very hard. And there was a wad of something that looked like hair inside the fuel valve and strainer screen. I flush some out of my left tank as well. Obviously contaminated fuel. I always use a filter funnel, except when going from a commonly used pump. So the Kenai float pond, or the Homer fuel tank pump, or maybe the pumps at Soldotna..
    Last edited by Alex Clark; Today at 01:42 AM.

Similar Threads

  1. orig. Firewall Fuel Strainer: Gasket where to get?
    By mikelima in forum Cafe Supercub
    Replies: 7
    Last Post: 09-25-2009, 09:52 PM
  2. Leaking Fuel Selector Valve - PA-12
    By Piper46 in forum Super Cub Sick Bay
    Replies: 2
    Last Post: 06-02-2006, 07:27 AM

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •