4000 Dollars for an impeller change???

Discussion in 'Boats, Motors, Trailers and Towing Rigs Forum' started by gungadin, Mar 17, 2017.

  1. TheBigGuy

    TheBigGuy Well-Known Member

    I'm not saying your McGyver won't work, but if he does have a kicker I'd suggest using that if need be.
     
  2. gungadin

    gungadin Well-Known Member

    I have plenty of wedges, sounds like a good idea, will pass it on
     
  3. gungadin

    gungadin Well-Known Member

    Sounds like a good idea too.
     
  4. Reel Gone

    Reel Gone Member

    Not uncommon to for the driveshaft splines to seize in the crank if left too long without being greased. Drill a hole with a hole saw in the exhaust housing and cut the driveshaft, will need a new shaft and weld the cutout back in the housing but it won't be 4K! This procedure has been done countless times
     
    triplenickel likes this.
  5. gunnerlove

    gunnerlove Active Member

    My Yamaha took the better part of a week of taping the wedges before I left for work, when I got home and before bed. I started with little steel wedges (1"x 3" x 0.25") that I sharpened to a razors edge and polished. Then once I had a gap started I used fallers wedges cut in half and steel angles to protect the surfaces. Usually I would go out and find the shaft had crept a little and the wedges on the ground. So back in they went with a light tap. No great force, no rush and no broken parts (don't hammer a wedge into things like the shift linkage). I blocked it up so it could only drop a couple of inches and drop it did.
     
    TheBigGuy and MRWood like this.
  6. gungadin

    gungadin Well-Known Member

    I was talking to him today. Told him about all the ideas on here. It seems we are going to try the polished wedge idea. He is away for a couple of weeks, but may bring the boat here. I have to make the wedges though. Were the wedges sharpened to a taper on both edges or did you leave one side flat and only sharpen one side? Any lubricant used?
     
  7. gungadin

    gungadin Well-Known Member

    We may end doing this if the polished wedge idea doesn't pan out Need to find out the location of the hole though. Weld a piece to the driveshaft and use a slide hammer after that ( of course use lots of lubricant)
     
  8. Cuba Libre

    Cuba Libre Well-Known Member

    Exactly the same problem I had with my Merc 115 4 stroke. Went in for a routine impeller and gearcase oil change.. and the shaft was seized in the block. No way was that leg going to drop. My Merc dealer called Mercury in Fond du Lac , Wi. and was told him they had never had this problem before The only way they could see to get the shaft to move , was to get at it by disassembling the block from the top. Total cost that Mercury marine paid my dealer was $3500.. very thankful for the Platinum extended warranty ...
     
  9. Cuba Libre

    Cuba Libre Well-Known Member

    Needless to say- I have purchased another 3 years extended warranty for the recent Merc I purchased
     
  10. gungadin

    gungadin Well-Known Member

    Well at leas5 we know he is not alone. Might be a tough lesson
     
  11. gunnerlove

    gunnerlove Active Member

    I only sharpened the sharp edge, and no lube, though I guess wax would have helped.
     
  12. spring fever

    spring fever Well-Known Member

    Once you get the opening switch to fallers wedges- less chance of damage
     
  13. TheBigGuy

    TheBigGuy Well-Known Member

    Last edited: Mar 20, 2017
  14. TenMile

    TenMile Active Member

    In the link TheBigGuy posted there, they also mention another penetrating lube called Kroil. I can attest that the stuff is amazing. It's hard to find in Canada, but I got it with a kit I needed to service my aftercoolers from a place in the US called Seaboard Marine. Stainless/bronze and aluminum parts all mixed together. Heat and cool, give the parts some whacks. Apply liberal amounts of Kroil and stuff will come apart.
     
  15. gunnerlove

    gunnerlove Active Member

    Kroil is very common with gunsmiths.
     
  16. triplenickel

    triplenickel Well-Known Member

    And likely available at Acklands, super common in the energy sector too.
     
  17. bigdogeh

    bigdogeh Well-Known Member

    Kroils great stuff. developed for the aerospace industry, boeing, etc... It's worked before for me when nothing else seemed too. Some people use an atf and acetone mixture (50-50) with pretty good results also. Alot of additives in atf apparently. Have to shake it up a bit before applying...
     

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