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  1. R

    What are these black spots?

    My guess is water getting under the paint.----Corrosion occurred.----Aluminum behaves the same over all the years.
  2. R

    1978 Chrysler 85HP Powerhead Swap

    Lapping.-----Done with valve grinding compound on the flywheel and crank tapers.----Rotate them together to get a matched fit.------As you know the flywheel key locates the flywheel for proper ignition timing.----The flywheel is DRIVEN by the locking tapers.----Hence the importance of torque on...
  3. R

    70s force 70... No reaction from key

    There is nothing wrong with the concept of electric shifting.-----What you need to look at is how the new " super " and big 4 strokes do the shifting today.
  4. R

    Starting and maybe restoring old Mercury 402 40hp

    This motor is a corroded piece of junk.-----Worth 10 cents / lbs.-----Lots of better projects out there to restore.
  5. R

    40HP Johnson Tilt/Trim

    You would have to provide some beer tokens for such information.-----Many parts sites on line to find those part numbers.-----Donor motors will show up for $200 or so.
  6. R

    40HP Johnson Tilt/Trim

    A donor motor is your best option.-----Any one of the 2 cylinder 40 / 50 from 89 and newer.----The 3 cylinder 25 / 35 may also be an option.
  7. R

    1969 20hp Johnson sea horse high revs with no propulsion when accelerating

    I used to keep a prop with a section cut out to show those " newbies " that there are rubber hubs in props.
  8. R

    70s force 70... No reaction from key

    Motor has to run / turn to build oil pressure for shifting.------The electric shift was well engineered , well built and reliable.----Just not well understood.
  9. R

    Wanting to rebuild carb and tuneup on 7.5 but what model/year do I have

    If it has the " comet " sticker it is the 7.5 HP model.-----The 7.5 HP block has SMALLER intake ports.
  10. R

    1969 20hp Johnson sea horse high revs with no propulsion when accelerating

    Well ----It does have a rubber bushing !------So try another prop.
  11. R

    Evilnrude 1999 15 hp 4 stroke

    Same drain plug as used for gearcase oil.-----Should be easy to find.
  12. R

    Unable to start and no water out the telltale

    Thermostat has nothing to do with it !----The water for the tell tale does not circulate through the block !-----So motor should pee after 3 seconds.-----Water needs to be 6 or 8" above the impeller in your test bucket.
  13. R

    2000 Johnson 150 hp Port side temp switch

    Part is also used on 115 HP ,90 HP , 70 HP and 3 cylinder 25 / 35 HP models.-----So a common part.----Call your local shops.----Somebody must have some good used ones !
  14. R

    Evilnrude 1999 15 hp 4 stroke

    There is a drain plug on the mid section.
  15. R

    63D orfice high speed jet?

    Look for the real problem.----The jet is not the issue !
  16. R

    63D orfice high speed jet?

    ?----Yours is worn out ?----From what ?----What size is it now ?-----What was your motor doing / not doing ?
  17. R

    63D orfice high speed jet?

    What is wrong with the one you have ?----Any friends with a small lathe ?----Make one !
  18. R

    New to winterizing..is it possible to fill cylinders with antifreeze?

    Fact is , that mistakes are made working on boats.---Even simple jobs on boats are messed up by a novice.
  19. R

    New to winterizing..is it possible to fill cylinders with antifreeze?

    Sailboat engines are often below the waterline.----They use a " waterlift " muffler.-----If you do not understand how this works you can fill cylinders with coolant from a bucket that is above the motor.
  20. R

    New to winterizing..is it possible to fill cylinders with antifreeze?

    Nope-----Error on part of the owner filled cylinders with with antifreeze/ water.
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