Welcome to the Aircraft Mechanics Forum.
Results 1 to 8 of 8
  1. #1
    Join Date
    Dec 2016
    Posts
    3
    Gallery Count
    0
    Comment Count
    0

    Default Fuel Pump Install

    I've run out of cuss words and need the help of the forum.

    Installing a new fuel pump on a IO-360 while it's mounted on the plane. Cannot get the plunger pin to stay up long enough to install the pump. I've tried various tacky greases, but the pin will always slide down, sometimes slower than others, but always slides.

    What works to keep the pin in the highest position so I have time to wiggle the pump into position and get the bolts started?

    Also, I've thought of using a very thin layer of high temp gasket sealant to keep the paper gasket in position during installation. Yay or nay on that idea? It slides around a lot and I'm concerned about damaging it during install.

  2. #2
    Join Date
    Nov 2007
    Location
    Clearwater, Florida
    Posts
    3,408
    Gallery Count
    26
    Comment Count
    0
    OzzModz Classifieds
    2

    Default

    Ok. First thing first.
    Use no flash or similar to clean the rod and the bore. Grease won't stick to anything oily
    Then with clean hands reach in push the rod up till it stops and have someone rotate the prop until the rod is fully retracted. Then let it slide back down pack grease in it and it should hold. Some of them can be a horrid pain in the ass but start with the above and use patience

    Steve
    You never have a second chance, to make a first impression

  3. #3
    Join Date
    Jun 2012
    Location
    Yankeeland
    Posts
    1,110
    Gallery Count
    0
    Comment Count
    0

    Default

    Steve pretty much described how I use to do it

  4. #4
    Join Date
    Dec 2016
    Posts
    3
    Gallery Count
    0
    Comment Count
    0

    Default

    On another forum it was suggested to use rib lacing thread or dental floss looped around and tied to something outside the case to put a side load on the pin. That worked like a charm.

    Thanks for the comments, but I just couldn't get grease to hold it up.

  5. #5
    Join Date
    Sep 2016
    Posts
    31
    Gallery Count
    0
    Comment Count
    0

    Default

    I third the advice of Steve, seems to be how I had to do it. although I only had to install about 3 of those in my 12 years in General Aviation.

    C

  6. #6
    Join Date
    Nov 2007
    Location
    Clearwater, Florida
    Posts
    3,408
    Gallery Count
    26
    Comment Count
    0
    OzzModz Classifieds
    2

    Default

    I think I have heard of that , it seems if you have that much access it should be possible to slip her in there.

    Let us know what worked !!!


    S


    Quote Originally Posted by smutny View Post
    On another forum it was suggested to use rib lacing thread or dental floss looped around and tied to something outside the case to put a side load on the pin. That worked like a charm.

    Thanks for the comments, but I just couldn't get grease to hold it up.
    You never have a second chance, to make a first impression

  7. #7
    Join Date
    Dec 2016
    Posts
    3
    Gallery Count
    0
    Comment Count
    0

    Default

    Quote Originally Posted by Steve340 View Post
    Let us know what worked !!!
    It worked great. It was still a four hand operation to get everything lined up and the bolts started.

  8. #8
    Join Date
    Nov 2007
    Location
    Clearwater, Florida
    Posts
    3,408
    Gallery Count
    26
    Comment Count
    0
    OzzModz Classifieds
    2

    Default

    Always good to hear of new successful methods. Dental floss eh? I'll remember that one !!


    Steve


    Quote Originally Posted by smutny View Post
    It worked great. It was still a four hand operation to get everything lined up and the bolts started.
    You never have a second chance, to make a first impression