Results 1 to 5 of 5

Thread: 72'Merc 500, fused/rusted impeller,removal of?

  1. #1
    Hi :
    Need some help here. I'm trying to replace impeller on my 50Hp merc(72').
    All went well until I tried to slide impeller off drive shaft. It won't budge! Put rust buster on for all day and over nite, tapped shaft, tried a channel pliers to get it to move...nothing!
    All it did is tear-up rubber on impeller! Seems the brass bushing is rusted/fused to drive shaft...or am I missing something here?
    I don't want to force.. any ideas?

  2. #2
    Advanced Supporting Member Steve_Kiesel's Avatar
    Join Date
    Jan 2009
    City
    La Pine
    State
    Posts
    689
    Try heating the shaft a little. When all else fails, some heat always seems to help. :TwoCents1:
    Steve Kiesel
    1959 Glasspar Seafair Sedan

  3. #3
    Heat + Force= Free Impeller!

    Thanks Steve:
    It worked, Had to also use a small cold chisel and slice into bronze bushing.
    Once the heat expanded it she popped right off!

  4. #4
    Whew!
    John Forsythe

    '59 Bellboy 404 - Pretty Girl
    Past Affairs:
    '61 Marathon - Jammie Dodger

  5. #5
    Moderator Moderator Bflaherty's Avatar
    Join Date
    Jan 2009
    Boats(s)
    1969 Chris Craft Cavalier 17 Ski Boat "TUPPERWARE"
    City
    Bellingham
    State
    Posts
    922
    Quote Originally Posted by delvel, post: 25563
    Thanks Steve:
    It worked, Had to also use a small cold chisel and slice into bronze bushing.
    Once the heat expanded it she popped right off!
    Glad to hear you got it apart ok. Make sure you double check the drive shaft for wear, my merc1000 did the same thing when I first got it and I had cooling issues for a couple seasons until we closely inspected the shaft and realized the water was blowing past the bushing on the shaft instead of going up the water line
    Brian Flaherty

    "How can you discover great lands, with your feet planted in the sand"

    1969 Chris Craft Cavalier 17 Ski Boat "Tupperware"
    1965 Performer Havoc (sold)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •