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  1. R

    Marine Flywheel compared to an auto flywheel

    It is that spinning torque torque converter that adds the weight on a car.----As stated above.
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    Rec gas prices???

    Local big power plant looked into hydrogen production.----Study was done to produce hydrogen when power was not wanted at some given price point.-----I think a few years ago ,the smelters for aluminum production sent all employees home with pay.----Could make more money selling the power.----So...
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    Rec gas prices???

    Just like I say.------Building more dams for cheap electricity is one way.-----Future generations need fish to eat , cheap electric power not so much.
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    Rec gas prices???

    Just like electric vehicles , hydrogen is possible.-----But not cost effective at this time.
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    Rec gas prices???

    The hydrogen storage might be and issue to some degree.-----Need to be very leakproof / leak tight.----Lake has lots of hydrogen.----But what does it cost / how to separate the hydrogen from the oxygen?.
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    Rec gas prices???

    Where would the hydrogen come from in large quantities ?----What would it cost to handle / store / dispense hydrogen safely.
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    The story of two motors - 75 Johnsons

    They built a lot of those motors so parts are not that hard to find.----First think I would check is the flywheel key.
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    Long trip suggestion boat

    I think something with a beam of no more than 8 1/2 feet.----Would make it trailerable.-----Some 26' Searay models may fit the bill.-----Have you estimated fuel costs for such a trip ?
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    Rec gas prices???

    How much hydrogen would you need every day to run 10% of the vehicles in the USA ???-----Where would the hydrogen come from ??-----Who would be qualified to handle / pump the hydrogen ?----How would you seal off the passenger compartment of a vehicle in case of leaks ?
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    Help with transom.

    Hopefully you have boat supported so it does not distort during repair.-----When I did stringers on a SCARAB SPORT i removed one side of the 16" stringers.-----Removed the rotten plywood AKA " beaver puke " wood dust and plywood flakes.------Replaced the plywood and glued the glass back in...
  11. R

    1993 40HP Mariner Magnum

    What kind of fuel are you using and is the motor exposed to direct sunlight ?------Never heard of anyone having this issue.----What was the part # of the fuel pump kit you used.---Serial # of your motor ?
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    Spark on on cylinder

    I can not see , hear or feel your motor.-----One sensor coil under the flywheel ( fires both coils) on your motor.-------One charge coil under the flywheel ( fires both coils ) on your motor.-----You observed that you had spark from both coils.-----That leaves a bad powerpack I would...
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    Help with transom.

    I see this as a wonderful opportunity to build a bomb proof transom.-----Make it 3" thick.----Cut back the stringers to fit.-----Speaking of stringers the core on them is likely rotten plywood too.
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    Hot light on dash

    On many smaller outboard motors ( older motor from say the 60's & 70's ) there is no warning system or shutdown on overheat system.------You would get blisters on your tongue to explain that impellers need to be replaced.-----Motors will run till it is too late !!
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    Regular maintenance - change just the impeller or entire housing too?

    As a young technician I used to keep old impellers to honestly show the old folks why they need to install a new one.---To save them $$$$ big time.-----Not any more.----I just kind of chuckle at the young folks these days.----Their mechanical smarts is on a decline.
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    Hot light on dash

    Model # of motor ?---2 or 4 stroke ?-----Does it live at a dock ?----Fresh water or salty / dirty water.----New impeller installed every 5 years ?
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    1966 Evinrude 60hp Charging System (Generator or Alternator) Build or Buy

    The 1967 model 60 and 80 hp models had battery powered ignition.----Had windings under the flywheel to charge a battery.----A 67 model donor motor to get the bits might not be easy to find.----Would need the flywheel as well. and upper bearing housing I think.------Lot of work.
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    1999 johnson 90 hp main in line fuse

    Sparkplugs last for years and years on this 1998 motor.------Best to spend money and time on other things like a new impeller in water pump.-----If oil injection is in service a new oil filter and oil " consumption test " should be done !!
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    2000 evinrude 15hp 4 stroke Run 15 min go in limp mode

    Testing must be done.------Test run with another fuel tank and hose first.------Run with a timing light hooked to one cylinder at a time and see if you are loosing spark.---Drain carburetor , then lay motor on it's side to fully drain pocket in the bowl.--Found one of these with water puddle in...
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    Regular maintenance - change just the impeller or entire housing too?

    I have seen many motors that overheated even with a pisser.-----The general public and the many " covid newbies " just do not know how motors work.-----Found this on 2 motors 70 HP with totally fried impellers .-----One of them at a recently sold summer home.-----I can only think that it was...
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