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  1. #1

    Default The FXS Shovelhead rebuild project

    Well underway is this project that I had initially thought was a burned up exhaust valve, which turned into so much more. Im documenting the entire adventure and will be posting as a series to my youtube channel in short order. As it stands, now, a bottom end rebuild, and some possible tranny work.... so it goes... its fun work...

    Setting up for video work
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    Disassembly begins
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    Exhaust valve guide and seat



    Rear piston, oil came from head downward



    Front piston oil blow-by, victim of ring alignment caused by piston slap
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    Oil drain port vs. Gasket diameter [James]



    Oil leaking through rear exhaust valve



    Head reassembly after work done



    Rocker polish 1



    Rocker polish 2



    Rocker polish 3



    Rocker polished 4



    Rocker polish rouge
    Last edited by jcrubin; 01-16-2019 at 9:10 PM.

  2. #2

    Default

    Tranny cleanup



    Tranny clean



    Piston wear



    Side slap



    Other side



    Cylinder wear



    Wrist pin wear



    Wrist pin out of round



    Broken oil bag mounts
    Last edited by jcrubin; 01-16-2019 at 9:22 PM.

  3. #3

    Default

    Which side is it leaking from



    Official locking tool



    Basket removed



    Leaking from both sides



    Inner - OFF



    Tranny leak also apparent
    Last edited by jcrubin; 01-16-2019 at 9:28 PM.

  4. #4

    Join Date
    Sep 2012
    Posts
    12,048

    Default

    Man that looks very nice.... What year FXS???

  5. #5

    Join Date
    Dec 2018
    Posts
    1,606

    Default

    Your piston skirt wear pattern shows the rods were not aligned before the top end was installed. Don't skip that step yourself.

    Jim

  6. #6

    Default

    Quote Originally Posted by JBinNC View Post
    Your piston skirt wear pattern shows the rods were not aligned before the top end was installed. Don't skip that step yourself.

    Jim
    Im pulling the motor as both wrist pin bushings worn out point towards a crank pin wear issue most likely, though other things may also be suspect, they will be identified.

  7. #7

    Default

    Its an 80

  8. #8

    Join Date
    Sep 2012
    Posts
    12,048

    Default

    Quote Originally Posted by jcrubin View Post
    Its an 80
    That's awesome..... Here's my 79 FXS.....

    Your rocker boxes are much better than most that I've seen of that era..... Mine were pitted like hell.... That's what they were painted....
    Attached Thumbnails Attached Thumbnails MVC-015S_zpsef848745.JPG  

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