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GPR Crank installation and crankcase sealing

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  • #46
    Originally posted by Rum Runner View Post
    It there any way to install the new crank without taking apart the top end?
    no

    rods dont come off the crank
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    • #47
      Originally posted by OsideBill View Post
      Now it is time to install the crank.
      Make sure when you drop it in that the front bearing alignment hole is in the correct position and the center bearing pins are facing up.
      Align the remaining bearing alignment pins in their respective slots once you drop the crank in.

      Set the assembly aside for now.
      Do all of the bearings have little spaces that the pins turn into? You said that the center ones turn upwards? Please explain. Great Write up BTW.
      And how many alignment pins are there? Just two?
      Great Write up BTW.

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      • #48
        There are indents in the top case half mating surface for one pin on the pto bearing, three pins each on the rod bearings, then a single pin in the center of the mag end bearing to line up the oil journal. He said to make sure the pins are upward on the bearings so you can roll them into their slots. If they aren't above the case half theres no way to get the pins in the slots.

        as for the alignment pins, there are only two.

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        • #49
          I know OsideBill is no longer with us, but hopefully someone can answer my question...

          Instead of coating the front and rear oil seals with marine grease, I filled the grooves in the cases with the Three Bond. Did I screw up? I've already put the cases back together again...
          2000 Yamaha XR1800 twin engine jetboat

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