Recent content by Greg O.

  1. Greg O.

    1989 Cobra 260hp 5.7 GM Fuel Pump

    This is a 1989 Four Winns 225 Sundowner with a 260hp 5.7 GM engine. Last fall on my last run of the year, I punched the throttle and the engine bogged down like it was starving for fuel. It would get up on plane, but would not run WOT. I am suspicious of the fuel pump, and feel it should be...
  2. Greg O.

    Water leaking around Cobra drive

    My 1989 Four Winns 225 Sundowner with a 5.7 Cobra drive has water coming in somewhere around the stern drive. It is hard to see exactly where it is getting in. Anything that might be an obvious probably. I pulled the stern drive and the drive shaft bellows is dry. Getting ready to pull the...
  3. Greg O.

    HD 25 coils

    I have a nice looking HD 25 I that does not have spark. I tested the coils with an ohm meter, and the secondary windings tested open. I have not had any success finding replacement coils. Is there another coil that will fit the core of these coils. I have used OMC coils with a 7/16 center to...
  4. Greg O.

    QD 12 carburetor

    I recently purchased a Johnson a QD12. It is a very low hour motor, and in nice shape, except for the normal stuff like coils, water pump, and varnished carburetor. Is there anyone out there who sells kits for this carburetor? Even just the gaskets would be very helpful. Thanks
  5. Greg O.

    Magento mystery 71 9.5hp

    I bought this 71 9.5 a couple of years ago on a boat. It didn't run very well so I set it aside. I could not get it to idle even after cleaning the carb. This winter I decided to make it run as it does have good compression. I decided to start with the mag and get it tuned up. The plate...
  6. Greg O.

    1955 Evinrude 7.5 shock absorber question

    This Evinrude 7.5 was not making full power. I took it apart to re-seal the gear case. I found the shock absorber assembly binding with the water pump-bearing casting. The propeller turns very hard unless I back off the 4 screws securing the water pump casting. I do not see any problems...
  7. Greg O.

    Mark 5 gear case.

    I bought a Mark 5 and discovered it had a crack in the case right behind the water inlet. The crack extends a little more then half way around the case. My guess is it probably froze. I am weighing my options to have it welded, or find another gear case. I found a Mark 7 gear case. Will it...
  8. Greg O.

    Chrysler 12.9 hp

    I just aquired a Chrysler 12.9 hp motor. The price was right. I don't know anything about the Chryslers. First off, what is the proper gas oil ratio? Second, I would like to run it off a Johnson tank using a OMC single line fitting. Has anyone else done this? Or should I plumb a Chrysler fitting...
  9. Greg O.

    QD 18 head gasket

    I am having trouble finding a head gasket for Johnson qd 18 part number 0301862. I figured Sierra would have them. Second, is it a good idea to change the head gasket on these old engines even if they seem to be fine?
  10. Greg O.

    CD 24 steering bracket

    I have a 6 hp CD 24 with a broken steering bracket. Part number 380184, replaced by part number 0389529. Anybody have one or know of one?
  11. Greg O.

    What model and HP Elgin?

    I just picked up this little Elgin, but I cannot make out the model number or horse power. I would guess somewhere around 5 hp. It runsbut needs a water pump impeller. Where can I find a water impeller? Thanks for any information.
  12. Greg O.

    Outboard motor test tank

    I have been using 55 gallon oil drums to test run my motors. This is fine for idle speeds, but does not work for high speed running as cavitation occurs not to mention all the water splashes out. Most of my motors are 15 hp or less. Does anyone have any ideas on what makes a good test tank...
  13. Greg O.

    1989 Cobra water leak

    I have a 1989 Four Winns Sundowner 225 with a 260hp Cobra (GM 350). It was taking on enough water that the pump kicks on about every 15 minutes, but only while stopped in the water. There does not seem to be any leaking while on plane. I am thinking it has to be either the bellows, or a seal, or...
  14. Greg O.

    1958 (qd19)Johnson 10 hp propeller

    I just purchased a 1958 10 hp Johnson (qd19) with a spun propeller hub. I have a dinged prop off my 57 qd18 10 hp Johnson I thought I would through on it just for testing. I did not realize the older motors turned a larger prop, and there is no clearance between the cavitation plate and the...
  15. Greg O.

    YouTube outboard motor video

    Does anyone here watch YouTube videos of outboard motors? I especially love the vintage motors that are being demoed on the transom. There is one person who goes by chysleroutboarddude. He owns over 250 motors, and demos many of them. Another favorite of mine is a person who goes by...
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