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  1. R

    CD-20R

    ^^^^^ Agreed with above post.-----And have a look at the ignition coils through the flywheel.-----Perhaps coils are cracked.
  2. R

    1976 70hp flywheel rub on cowl

    No just in the reed valves.-----Motor had one bad piston.-----Replacing the block.-----Will tear that power head apart over winter.
  3. R

    Mariner 45hp Carburetor Leaking after Total Rebuild....stumped!

    If it is leaking from throttle shafts after shut down it is normal.-----
  4. R

    1976 70hp flywheel rub on cowl

    Mounts for the lower cowling in place and tight ?-----Mounts for the upper cowling in place ?-----Is sound blanket ( foam ) loose ?
  5. R

    4 blade to 3 blade, speed?

    So 45 mph 5600 RPM with what engine , what pitch , what boat.
  6. R

    Should i part out my Yamaha l4 3.0?

    Just a 4 cylinder GM based motor.-----Not many of the drives around.----Posting on the " world wide garage sale " ( e-bay ) is your best bet.
  7. R

    1972 Evinrude 65hp Triumph slipping sound, not engaging into reverse

    Some will argue and hesitate---A 50 year old hydro-electric needs a tear down / inspection / reseal if reverse is misbehaving .-----Simple to do and simple is my opinion !
  8. R

    Johnson 3 cyl 70 hp, 1986. No vacuum at one carburator

    Remove power head.----Inspect crankshaft lower seal.-----If that seal is good.----Take engine apart.----Should be easy to find the damage then.
  9. R

    Johnson 3 cyl 70 hp, 1986. No vacuum at one carburator

    Each cylinder has a sealed crankcase.------No vacuum means ----A hole in the block.-----Blown crankcase lower seal.-----Bad lower labarynth seal.----Fuel pump diaphragm ( air motor on VRO ) bad -Are you saying there is nothing happening with a piece of paper in front of the lower seal ?
  10. R

    Winterize

    Dealer I know keeps track of weather in the fall.-----When he get a call to winterize a boat AFTER a cold snap he takes action.------Customer brings boat in and engine is started up right then and there.-----They thoroughly check for water leaks.----Then agree to winterize ASAP.
  11. R

    1976 70hp flywheel rub on cowl

    Working on a V-4 for a dealer , had cowling foam stuck in the reed valves.
  12. R

    58 Johnson CD-15; Drain plug 27-283, other part number ?

    They were the same plug / thread size from about 1950 to 2000 models.----On bigger motor there was a magnet to filter metal bits out of the oil.
  13. R

    Johnson vs merc vs Chrysler?

    Roadrunner is confusing to me.
  14. R

    Control box and ignition switch for 1971 Johnson 70 hp Sea Horse motor

    Model # needed.----There was no 70 HP marketed in 1971.-----You should open the box up and have a look for broken parts , loose wires.
  15. R

    Gearcase oil change

    You could run that oil for 10 years if you run 3 hrs a season.
  16. R

    Johnson 55HP Idle Screw Not Returning in Neutral!

    At some point you have to dig in to find the problem.----Guessing does not work.
  17. R

    Converted 15 Hp 1990 Evinrude

    Find a shop with a test prop.-----See if it reaches the RPM stated in the manual.
  18. R

    Evinrude Fleetwin 7.5

    A 1955
  19. R

    Johnson 3 cyl 70 hp, 1986. No vacuum at one carburator

    The 3 cylinders OMC motors used them from 1968 to 2001.----Machined into the block.----Have inspected the insides of many of them myself !
  20. R

    Johnson 3 cyl 70 hp, 1986. No vacuum at one carburator

    If a piece broke off the piston skirt it pops a hole in the crankcase.----No crankcase compression.------If the bottom seal is bad then no / little crankcase compression.----Remove powerhead and start inspection.---- Bearings may have failed wiping out the labarynth seals.
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