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Recent content by MartinZ

  1. M

    Johnson CD-12 final inches problems

    Thank you. I'll try that.
  2. M

    Johnson CD-12 final inches problems

    Yep, that'll do it. Didn't realize you have to remove the powerhead to get the lower unit off. Guess I'm in for some new seals and gaskets now.
  3. M

    Johnson CD-12 final inches problems

    I have a CD-12 that I am working on and have a few problems to figure out. One of them that I think is serious is the way the spark advance mechanism shakes rapidly back and forth at low throttle. I took the flywheel off and smoothed out the edges with some sand paper in case maybe it was...
  4. M

    Johnson RDE 17R repair

    I have a 2 line tank that I rebuilt for my 5.5 (it still leaks anyway) but if I get this motor running, I will add a fuel pump to it.
  5. M

    Johnson RDE 17R repair

    I got it apart. The top cylinder looks much worse than the bottom. I'll get big bucket of solvent or parts cleaner and dunk everything so I can see better.
  6. M

    Johnson RDE 17R repair

    I'm hopeful it's just cosmetic and it will clean up. If not, I can make my money back just by selling the electric starter. I have a 5 & 1/2 hp that is pretty much finished, mechanically. I picked up a little jon for it today and I'll start sea trials as soon as I get it registered. If...
  7. M

    Johnson RDE 17R repair

    Spent a little more time on it today. The lower shifts correctly. Next step is get the magneto off the top and split the case. Not too familiar with the lower seal, but I think that broken plastic ring might be the low quality seal I've read about.
  8. M

    Johnson RDE 17R repair

    Location is Texas. If it turns out to be a mess, I don't know if I will rebuild or part it out. Haven't decided yet. Don't see very many of these being offered up for sale.
  9. M

    Johnson RDE 17R repair

    Just remembered this model usually has the bad seal, so I will have to tear it all the way down anyway.
  10. M

    Johnson RDE 17R repair

    It's locked up solid because it was outdoor decoration, but I'm gonna see what I can do with it. Currently have it taken apart down to the powerhead. I might have to remove it from the lower and split the case to get it free. Being patient and avoiding more damage. It is very similar and still...
  11. M

    93 Johnson 8hp low compression

    Ok ok, I'll do it.
  12. M

    93 Johnson 8hp low compression

    The bad news is I only found 3 of the 4 balls. The good news is I finally found the fragments of the 4th ball, so I didn't lose one.
  13. M

    93 Johnson 8hp low compression

    Alright, full tank of gas, completely reassembled, engine starts easy with the pull rope. There's a switch on the tiller that does nothing. I assume it's the kill switch, but I'll look into it. Applying the choke at idle is how I'm shutting off for now. Now to study the lower end before I...
  14. M

    93 Johnson 8hp low compression

    I cleaned the head surfaces and put the new gasket on. I wanted to check and see what difference it made without machining the faces (that and I don't want to separate the powerhead from everything else if I don't have to). The compression is up to 50 psi on both cylinders (I checked the gauge...
  15. M

    93 Johnson 8hp low compression

    Thank you for the replies. I have the head gasket ordered and I will try getting the surfaces flat.
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