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  • CrankCase

    Rebuilding a 94 C75TLRS Out Board

    Removed Intake
    Took out all bolts and Nuts connecting both sides of CC.
    Does not seem to be a Gasket Seperating Both sides of CC,

    Tried "Gentle/Firm" Push. No Luck!

    How to Seperate the 2 Sides to access the Crankshaft to inspect for Damage?

    TKS

    MM

    PS: Noticed four areas along seem between two sides that seems like notched for something!!!!

  • #2
    As long as all the bolts are out just use those notches to break loose.
    Regards
    Boats.net
    Yamaha Outboard Parts

    Comment


    • #3
      TKS.

      Kind of expected so.

      Only question is HOW to use those 4 side notches/indentations.

      Already tried inserting a large Flat head Screw driver in 1 notch at a time and twisted it. Then tried hit it with a rubber mallet and a 20 oz hammer. can see screw head scratching metal. But no -not even a hair line crack opened at the seem.

      Thought to seek advise before I hit it harder and cause unwanted dammage -just in case there is a need for any spercial tool or somekind of "trick of the trade" secret to work on all 4 notches simoltaniously there.

      MM

      Comment


      • #4
        May have to use a rubber mallet on housing or against crankshaft to get loose.
        Last edited by boats.net; 04-13-2012, 08:48 AM.
        Regards
        Boats.net
        Yamaha Outboard Parts

        Comment


        • #5
          TKS for Followup.

          My 1st OB Job!!!

          Thought the 16 horizontal Studs and 2 Nuts are all there was to remove. WRONG.

          Ended up:
          1- Removed the Magnetto and took out the 3 Vertical Studs Going down.
          2- Decided to remove the Bottom Cover and the Block's 6 Studs. Still, Neither Motor nor Case cover will come out- Easily!
          3- Looked way down below and saw a hard to see and get a hold on small Vertical Stud -going upward. STILL struggling with it -can only get 1/32 of a turn when my wrench is lucky enough to grab it. no ratchet wrench or socket can get to it. I'll leave for Tomorrow morning -patience is imparative.

          Anymore surprises (tricks of the trade) to expect before I can inspect the Shaft????

          TKS
          MM

          Comment

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