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  1. R

    Outboard ran without water for about five minutes

    When there is a chance that impeller ran dry as in post #1, the impeller should be replaced.
  2. R

    1982 Johnson outboard 60 hp 2 cly

    Possibly overheat?---Possibly water was trapped there and it froze.----Nothing to worry about.----Why did you take the head off ?
  3. R

    Outboard ran without water for about five minutes

    At idle there is nowhere near as much heat created as at full throttle.-----Incoming air and fuel cool the parts to prevent catastrophic failure.
  4. R

    83' 115hp Mercury, prop slip

    Power trim allows you to lift the bow at speed.-----This reduces wetted surface ( drag ) and you gain speed.
  5. R

    Prop for Evinrude V4 crossflow

    What boat is it on?----What setting on your tachometer?----That motor on a light 16' boat would normally use a 19" pitch.---You are sure it is not a 140 HP powerhead ?----There was a 23" 2 blade bronze prop ( cupped ) available at one time.----A 24" raker was available at one time.-----Might...
  6. R

    OMC 6hp Mag Flash

    The universal magneto ( 1950 to 1990 ) is an elegantly simple set up.---Easy to find parts for.-----The magflash is also a wonderful , easy to maintain set-up.
  7. R

    Point setting vs timing

    The timing fixture is nothing but a --" dummy flywheel "---The flywheel on the motor can be used to time the breaker points.----Just takes a little longer.
  8. R

    Point setting vs timing

    Correct.----You are timing the breaker point opening to get maximum spark intensity.----Actual gap does not matter.----Rest if the timing is looked after.----A simple concept much misunderstood.
  9. R

    OMC 6hp Mag Flash

    New rubber seal for cowling can be found.
  10. R

    Starting your car in this cold weather.

    I fixed up a 1940 Plymouth in the 1970's.------Many folks today would not be able to start that wonderful flathead six.
  11. R

    Jet drive for 22ci 25hp Johnson/Evinrude ‘69-73?

    deleted
  12. R

    1990 yamaha 250 2 stroke seapro 2

    It looks like it left the factory with 3 PRESSURE operated fuel pumps.----A fuel pump that runs when battery is turned on , would be considered a safety hazard by most folks.-----If those pumps are there I would repair them.-----If speed jumps up with choke then it sounds like carburetors need...
  13. R

    1981 Mercury 7.5 2 stroke

    The o-ring for the driveshaft is clearly shown.----Item 35 on the parts pages.-----Simple facts for you.-----There were many issues with rusted splines on older Mercury motors.-----On these they broached the spline to go into the crankcase.----This allowed the oil that you mix with gas to lube...
  14. R

    Outboard ran without water for about five minutes

    Compression test. ----Post your numbers.-----Replace water pump impeller now.
  15. R

    OMC 6hp Mag Flash

    Have lots of these motors.-----Assembling a 78 right now.----Yes it is quite possible to fit the good reliable points magneto on them---Might need the older flywheel too.-----But the magflash is also very good and reliable so why go back to points ?
  16. R

    Missing parts 1991 3hp

    #32 is a fuel pumping bladder.----#31 hooks up to crankcase air PRESSURE pulses.-----I would have to find a carburetor to check the threads.
  17. R

    1981 Mercury 7.5 2 stroke

    Good luck with your motors.
  18. R

    1981 Mercury 7.5 2 stroke

    Did you read post #40 ??----Or are you simply ignoring some input by me?
  19. R

    2006 DF115 Stuck valves?

    See post #14
  20. R

    2006 DF115 Stuck valves?

    When these motors hit something ( full throttle ) they might experience a " dynamic halt "-----Crankshaft stops but camshafts want to keep going.----Timing chain jumps on the sprockets.
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