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Engine rebuild

Discussion in 'The Garage' started by Viking, Nov 25, 2019.

  1. Viking

    Viking XS400 New Member

    Hi people and thanks for the membership to this awesome site :)

    I am changing the piston/rings and so on,but having an issue getting the valve springs compressed to get the helpers out !!! Any help would be much appreciated :)
    The bike is an 79 XS400 SOHC (2A2)
    All the best from the Faroe Islands :)
    Spiffarino likes this.
  2. Gra900

    Gra900 XS400 Addict

    Hi Viking, Wow, Faroe Islands, that’s going to be tricky to get spares!
    Let’s see some pics of your build
    All the best from the west of England
  3. Viking

    Viking XS400 New Member

    Yup ,its not easy to get parts.Have to get them of Ebay,which aint cheap because of where i am living :( Cant upload pic ? Will try again in a moment :)
    All the best Gra900
  4. Spiffarino

    Spiffarino XS400 Enthusiast

    How's this going for you?

    I used a spark plug socket (18mm) and rubber mallet and they popped right out. However, I don't recommend this method unless you have a small magnet to put inside the socket because the keepers will go flying and can take hours to find in a messy garage. Don't ask me how I know. You also risk bending a valve if you don't set it on something to make a space underneath the combustion chamber.

    To reinstall the valves I bought an inexpensive compression tool from Amazon for about $19 American and wish I'd waited before trying the method above. For something so cheap it worked a treat. Put a towel or thick rag over the compression chamber and head surface because it has some sharp edges and no doubt will scratch the hell out of it if you're not careful.

  5. XS4004lyfe

    XS4004lyfe XS400 Enthusiast

    Spiffarino likes this.
  6. Spiffarino

    Spiffarino XS400 Enthusiast

    LOL same damn one only a buck cheaper. Nice going.
    XS4004lyfe likes this.

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