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Recent content by Oldguy44

  1. O

    1978 mercury 9.8 110 thunderbolt

    I’m trying to replace the rubber seal that is on the top of the copper water tube where it seals at the powerhead. Does anyone know how the copper tube comes out or does it come out? I’m replacing the rubber seal and nylon spacer. Thanks
  2. O

    Mercury 9.8 110 thunderbolt cooling problem

    I don’t know the serial number the motor was my uncles and was stolen by his son and tried to sell it. When he got the motor back The serial number plate was gone and the serial number on the head had been ground off with a Dremel or something. It was given to me a few years ago. I think it’s a...
  3. O

    Mercury 9.8 110 thunderbolt cooling problem

    I’m having problems getting the cooling system to have a good steady stream of water out the telltale. I have replaced the impeller replaced both gaskets on the exhaust plate and cleaned out everything on the head. Air and water (with garden hose) flow good. I pulled the powerhead, cleaned good...
  4. O

    Mercury 9.8 110 thunderbolt cooling problem

    I’m having problems getting the cooling system to have a good steady stream of water out the telltale. I have replaced the impeller replaced both gaskets on the exhaust plate and cleaned out everything on the head. Air and water (with garden hose) flow good. I pulled the powerhead and cleaned...
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