Recent content by LNM

  1. L

    omc 140 , 400 outdrive exhaust diffuser ring

    I am trying to locate a diffuser ring for my prop. The prop is a 13.75 X 15 Michigan part #99210313 I have searched around and cant locate one. Maybe I don't have the correct name for the part but I can't even find the prop with the number. I think I'm having an issue with "ventilation", I...
  2. L

    water intake manifold cover.

    Is that what this is called? and where do i get another one? thanks in advance. 1979 OMC 140
  3. L

    1979 Running OMC 140 video for sound.

    Hey all, new boater here. I recorded this video mostly for the sound. Does this sound normal? It sounded like something is rattling to me but I don't know what "normal" is. I realize I still have a bit more tuning to do. The motor was ice cold. thanks. -Larry Oh yeah, the tach is not...
  4. L

    nice quick starting 140 omc

    checked the plugs. looked good but needed the correct gap, they weren't checked before installation it appears, they were 40 thou. plus. done. points looked bad. so new points set to 19. done. cap and wires were good. cleaned carb with carb cleaner. This was a hard starting engine...
  5. L

    engine electrical connections.

    Hey all, new boater here. I am currently working through the wiring mess left by the previous owner. I was wondering if after cleaning wire connections.. such as the starter cables, coil and solenoid connections etc. Should I be putting some kind of sealer on them. I saw some liquid black...
  6. L

    electronic fuel pump or ignition?

    hey all new boater here. I was wondering if i can install an electronic fuel pump and or electronic ignition on my 1979 omc 140 motor? thanks -Larry
  7. L

    Trailer tire load capacity.

    Hey all, new boat owner here. I just took the boat and trailer to Les Schwab and had new trailer tires put on. When i got home I was checking them out and read on the side of the tire that they are rated for 1750 lb's. I'm pretty sure that the boat weighs more than that. It is a 1979 17...
  8. L

    Where to look up motor and outdrive serial and model #s

    nevermind
  9. L

    OMC 140 swap for Merc 120

    Hey all, I have a 1979 Beachcraft with a OMC 140 motor in it. I also have a Mercruiser 120 that is rebuilt. Can I swap the two motors out by changing the omc parts onto the merc block? The motors look the same except one is black and one is blue. The merc motor is from the 70's. I know...
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