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  1. jimmbo

    Grinding going into gear

    Clunk or clang, is okay, but any chatter/grinding, and you are shifting way too slowly, the unit is either In or Out of gear, no easing it. On the those units, the Forward Gear and Dog have ramps, the Reverse Gear and Dog, have Straight Teeth/Recesses
  2. jimmbo

    Gear shifting issue evinrude 70

    We did that on a 57 35hp back in 1972, one evening at the Lake, when the Clutch Dog and the Tapered Bearing in front of the Forward Gear, were both chewed up. One front wheel bearing, gear swap and Clutch Dog turnaround, and we were back on the water. I remember my dad and his cousin swapping...
  3. jimmbo

    1955 Mercury Mark 40 Help

    That lower unit is the Quicksilver version, for racing, which is why Fastbullet stated "Hydro only" The stock lower unit, is quite a bit different
  4. jimmbo

    1976 Mercury 1150 Lower Unit Compatibility

    The ones from the 66.6 cubic in. 4 cylinders will fit, no problem. They have the 2.33:1 Ratio. It will help raise the RPM without having to use as such a low pitch prop at your Altitude The LUs from the 3/4 cylinder Loopers will not swap over.
  5. jimmbo

    1988 35hp - Multiple issues

    Threw a Rod, and broke the Crank perhaps
  6. jimmbo

    Low rpm

    Prop it so it is runs in the Upper 1/2 of the WOT Range, preferably close to the top.
  7. jimmbo

    Low rpm

    5mph increase with 15hp increase is actually very good. I suspect you have way too much pitch, which is holding the rpms down What yr is the 40hp? 2 cylinder?
  8. jimmbo

    Johnson evinrude drain plug washer

    Mercury has packs of 10 or so washers. For not much more than the price of just one Some are Nylon, others can be other Materials
  9. jimmbo

    1976 Mercury 1150 Lower Unit Compatibility

    You should consider post 1979 Cases as they have improved Hydrodynamics. Since the mid 70s, all LUs for the I6 use a 2:1 gear ratio(1972 1150 used a 25:14. maybe a typo. Then again, the 73 brochure mentions the 1150 getting a new Gear Ratio.). As mentioned above, the LU from the 66.6 4 cylinders...
  10. jimmbo

    First plane ride/snow !

    @jimmbo MOD Edit: unnecessary drivel
  11. jimmbo

    1988 35hp - Multiple issues

    Are you certain all the Fasteners are removed? If you are trying to drop the Lower Unit, don't forget about the Bolt under the Trim Tab.
  12. jimmbo

    Can i put a different brand outboard on my boat

    In some areas, there are no Limitations. I know I never had any problem buying a boat, or having the Dealer repower it with Engines that were often close to 50% higher than the Rating. I also never had any Issues with Insurance Underwriters, and I told them, in Writing, it had more engine than...
  13. jimmbo

    Sharrow prop

    We don't hate it, but we do recognize it for the Comedy that it is.
  14. jimmbo

    Just thought I'd share a nice photo.

    Witnessed on way to Costco. Going about 125km/hr, the driver was Oblivious to what was happening behind him, even though I could hear a hell of a racket as he passed. I pulled alongside and pointed to the back of the car and he pulled over.
  15. jimmbo

    Anyone heard of Mystic gear oil?

    If you have an Electric Shift, or Hydro-Electric Shift gearcase, the stuff is likely not Compatible usable in it
  16. jimmbo

    Which States/Provinces Enforce Registration Numbers Requirements

    Most Numbers I have seen the past 30 years, are not Block, but Script. I haven't seen any LE officer, getting his Panties into a Knot over it
  17. jimmbo

    Sharrow prop

    Still dreaming the Snake Oil Prop, I see
  18. jimmbo

    Merc 4 stroke worn out with low hours

    Yes, they do last forever. We had the 5 1/2 the year before they bumped it to 6 hp. That poor little engine went to Hell and back. It was submerged a few times, once at WOT, it was overheated enough that the Paint on the Head turned dark, and it was run with no oil in the Gearcase for a couple...
  19. jimmbo

    Classic 1959 Skagit Sportster

    A couple more images, and a link to Fiberglassica http://www.fiberglassics.com/library/index.php?title=Skagit_Plastics
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