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  1. jimmbo

    '69 johnson hydro electric shift V4

    Maybe if you drove up to Ontario, Canada, racer might help you with it
  2. jimmbo

    '69 johnson hydro electric shift V4

    Once it is out you can clean the Pump, it certainly performs like it is contaminated
  3. jimmbo

    Just thought I'd share a nice photo.

    This was in 2010 and this in April 85. This all fell overnight I HATE Snow. I don't like Its Colour, I don't Like Its Texture, I don't like Its Temperature
  4. jimmbo

    '69 johnson hydro electric shift V4

    Pull the Pump out and check the Inlet Screen for Debris
  5. jimmbo

    '69 johnson hydro electric shift V4

    That is #10, the Piston
  6. jimmbo

    '69 johnson hydro electric shift V4

    Evinrude used Pushbuttons for shifting, Johnson combined shifting with the Throttle Lever.
  7. jimmbo

    '69 johnson hydro electric shift V4

    A Johnson Control is a lot different from the Evinrude Control, but they are interchangeable with a few Caveats Air puts up no resistance on the Prop. Water being much Denser, does load it, and any Weaknesses will be revealed. In one of the Pics, as racer pointed out shows serious Wear on the...
  8. jimmbo

    '69 johnson hydro electric shift V4

    You haven't got the Neutral and the Reverse Wires swapped somewhere?
  9. jimmbo

    Needing higher rpm

    In post #11 "I figured out the pitch on the prop was 23 not 19 like I thought. So I'm way over propped."
  10. jimmbo

    Needing higher rpm

    17, then 19, now it was 23....
  11. jimmbo

    Needing higher rpm

    You said it was a 17, now it is a 19, so that just threw out my and QBhpy's caluclations out the Window. Why torture the Poor Motor even More? You are overpropped, if you haven't damaged the Engine yet, continued operating it like that will do so. How does the Tach get its Info? If it is an...
  12. jimmbo

    Needing higher rpm

    At 25 mph and a 17" Prop, your engine is turning about 3600 rpm. So the tach likely not accurate, but I think a 17 is too much prop for an 18ft Pontoon. That said, I think you need the give the engine a through check over. First a compression test, post the Numbers Can the Spark, on all Cylinder...
  13. jimmbo

    Just thought I'd share a nice photo.

    When I look at authentic WWII Pictures, and Films, I realize the guys that flew these things were still Kids. They certainly have My Respect
  14. jimmbo

    Merc 850 Inline 6 Piston Scoring

    I had a couple of those Inlines. I liked them, even though I was treated with disdain, being in an OMC Family. The Hickling ended when my 90hp and 115 inlines could out pull, have Higher Top Speed, than the OMC 90s and 115 respectively, and the 115 even beating the 135-140s, and doing sp on...
  15. jimmbo

    Merc 850 Inline 6 Piston Scoring

    If you can't afford to rebuilt properly it the First Time, how are you going to afford rebuilding a Second Time?
  16. jimmbo

    Merc 850 Inline 6 Piston Scoring

    You can't squeeze the Bearing Cap, as that will ruin it, you will need to find a way to keep it anchored As for the Pistons, they are Scuffed and Scored, and so will likely need replacing. What do the Cylinders look like? Have you measured them for Wear? 2 Stroke Cylinders wear differently...
  17. jimmbo

    Merc 850 Inline 6 Piston Scoring

    The Bearing should be a Service Part, now getting it out will likely involve a Slide Hammer and outward facing Jaws, with the End Cap secured
  18. jimmbo

    Mercury XR2 150 stuggling to get on plane.

    Interesting that the Piston itself went bye bye, but the Rings are still there Doubt it was Overheating The only way those Cylinders would be starved of Oil and the others not, would be lack of Fuel to them. Go through the Center Carb and Fuel Line suppling it, very thoroughly, you will find...
  19. jimmbo

    Mercury XR2 150 stuggling to get on plane.

    What do 3 and 4 share? The Center Carb, if it went lean from Fuel Starvation... Plug looks awfully Dry. I doubt the 'Oil Injection' is to blame as Mercury mixes the Oil in to the Gas, so all Cylinders would get the same Mix
  20. jimmbo

    1947 Johnson HD 25

    Don't forget, you have run a 16:1 Oil Mix, Regardless of the Oil being Modern TCW-3. Post #5 sums up the Reason
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