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  1. egclassic

    Fuel Leak At Carb(top)

    I finally got the 73' Merc 850 running this weekend. I have already replaced all the wiring and the water and fuel pumps. I let her run for about 15 mins or so, checking to make sure my water pump install was good. Then I noticed that the black plastic linkage between the upper and lower carb(on...
  2. egclassic

    1973 Merc 850

    I have been working on getting this motor running. Not sure how long its been since this engine has ran, since I just bought it a month ago. I have already replaced the internal wire harness and all of the fuel lines. Yesterday, I finally tried starting it. Took many, many times but it finally...
  3. egclassic

    Wiring on 1973 Merc 850

    A boat I just purchased has a '73 Merc 850 with Thunderbolt ign. and it looks as though I am going to have to do some re-wiring on it. Most of the wiring has cracked insulation and it seems very brittle. I thought I read somewhere that older motors may have used aluminum wiring, anyone know if...
  4. egclassic

    Need help selecting a Prop

    Just picked up a second boat which is my winter project. This boat has a '73 Mercury 850 w/ thunderbolt ign. It needs a new prop and the only # I could find on the existing prop is 48-77346-19. Is this all I need or should there be another number I have not found? I'm guessing it is a 13x19? Thanks
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