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  1. J

    Opinions on 1977 mercury thunderbolt110 9.8 hp

    Water pump was really easy to change out, so I thought rest of the motor might be pretty straight forward. Would it be a big deal if i convert the fuel connection over to an omc one? I know it would be like a 2 minute job and super easy. I just didn’t know if it would cause issues with my motor...
  2. J

    Opinions on 1977 mercury thunderbolt110 9.8 hp

    Sounds like long term I might actually be better off with the mercury? Right now I’ve got 4 OMC motors and this mercury. Trying to get my second fisherman up and going then I’m going to purge a few of them.
  3. J

    Opinions on 1977 mercury thunderbolt110 9.8 hp

    I have an ad up online that Im looking to buy a few old Johnson/Evinrude motors to work on while my son naps or whenever the weather is ugly. I had a lady message me and she gave me a mercury 9.8 110 thunderbolt electric start motor. It’s in phenomenal shape/came with the service manual. I put a...
  4. J

    1971 Evinrude fisherman, not pumping water

    I am picking up a second parts motor tomorrow for the recoil assembly. It’s cheaper to buy a whole motor than the part. I’m hoping to get a runner out of two frankenmotors
  5. J

    1971 Evinrude fisherman, not pumping water

    I’ll do that soapy water test. I put new nylon washers on last night and still had leaks today. Probably 99% chance my prop seal is ruined. Has a big glob of fishing line wrapped behind the propeller and a bunch of sand in the lower unit.
  6. J

    1971 Evinrude fisherman, not pumping water

    I put J8C instead of J6C plugs. I’ve read both are the standard plugs. Someone with more knowledge than I will know which is accurate.
  7. J

    1971 Evinrude fisherman, not pumping water

    Sanded and set the points, put in some hotter plugs. It’s a runner now. Think I missed an orifice cleaning carb/ will only run with choke on. Water pump is pumping but not super well. Im going to order a brand new water pump and try that again. Leaking lower unit oil in my garage. Going to...
  8. J

    1971 Evinrude fisherman, not pumping water

    Now we’re not starting. Looks like I’m gonna have that full rebuild after all
  9. J

    1971 Evinrude fisherman, not pumping water

    Oem impeller, and intake isn’t blocked. I checked other day.
  10. J

    1971 Evinrude fisherman, not pumping water

    Both are in pretty good shape. No damage to report on either
  11. J

    1971 Evinrude fisherman, not pumping water

    Ok; that’s about what I’m seeing. I think that pretty much leaves either my grommet is bad or I didn’t have it hooked up right left
  12. J

    1971 Evinrude fisherman, not pumping water

    Sprayed water though the brass tube and it came right out the back of the exhaust housing assembly. I did the lower unit in water and turn with a cordless drill. I had a little bit of pump out of the grommet but it was pretty pitiful. It should pump pretty substantially even with a drill correct?
  13. J

    1971 Evinrude fisherman, not pumping water

    I love this site, everyone is so helpful! I look forward to the day I can start answering question for people too.
  14. J

    1971 Evinrude fisherman, not pumping water

    Yes! exactly what i needed.
  15. J

    1971 Evinrude fisherman, not pumping water

    I'm sure it is a very simple repair. I debated on even starting this thread, but wondered if there was some weird part or step that I'm missing. Im gonna replace that grommet and try to spray water through the brass tube. Hopefully it fixes the problem.
  16. J

    1971 Evinrude fisherman, not pumping water

    Impeller came out in one piece. Rubber grommet on top of pump housing looks pretty good (although I do have a spare I can try) . I haven't sprayed a hose through anything yet, but this is going to be part of my next plan.
  17. J

    1971 Evinrude fisherman, not pumping water

    No telltale fitting that is correct. No water coming out of back the exhaust housing assembly either. Already took apart to make sure water pump housing is hooked up to brass tube. It’s good. Will remove lower unit and pump in bucket of water to see what’s up. Everything appears to be...
  18. J

    1971 Evinrude fisherman, not pumping water

    I wish it was that! 100% we’ll above the av plate. I’ve got a 1984 I’m working on as well both short shafts I’ve been swapping out in the same bucket of water, and it pumped well for like 30 minutes. I know water level is good. I don’t use muffs either
  19. J

    1971 Evinrude fisherman, not pumping water

    no blockages under the thermostat. I was able to blow a little air and everything seems to be moving freely. Will remove cylinder head next
  20. J

    1971 Evinrude fisherman, not pumping water

    Google search…run water through it or piece of weed wackier hose. Seems reasonable
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