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  1. K

    Need Ideas/Advice/Removal of Broken Upper Vertical Shaft Bearing.

    Go to Home Depot or Harbor freight obtain a 4“ or a 4.5” right angle grinder with the abrasive wheels. Start cutting across the bearing, eventually you will be able to peel it off even if it was friction welded. Depending on how bad the shaft surface is you should be able to dress it enough to...
  2. K

    Carburetor question

    Is the carburetor in question a Mercarb with 1 idle mixture screw or a Rochester with 2 idle mixture screws? Also does it have a nipple where the clear hose connects to the air horn?
  3. K

    74 stringer electric shift rebuild

    Looks good, the only thing left to check is the propeller, and voltage to the drive on your next time in the water.
  4. K

    Upper Gear Case Bearing was Destroyed Sterndrive. Need help with part # Merc Alpha One Gen One.

    It may be possible that the upper bearing could be friction welded to the stub shaft. While the housing could be salvaged it takes a set of shimming tools along with a hydraulic press. I repaired many like that before the SEI drives became available If the case was not damaged. Your best option...
  5. K

    74 stringer electric shift rebuild

    Did you replace the shift cable wire? Also you need to be sure that a full 12 volts is going to the drive. Use a jumper wire from the battery to the forward “green” wire just to be sure that is not the cause. The only other fluid that OMC approved was automatic transmission fluid if type “C”...
  6. K

    74 stringer electric shift rebuild

    Did you use gear oil made for electric shift lower units? It does however may be the propeller hub. I must congratulate you on your work that you have done so far to the “basket case” and finally got it going.
  7. K

    Strange engine sound need help

    It looks like the pulley on the raw water pump has a build up of rust. That can cause belt failure. It can be cleaned with wire wheel on a drill or take it off then have it glass bead blasted and powder coated.
  8. K

    Strange engine sound need help

    I agree that it appears to be belt related. They are not supposed to walk back and forth in the pulleys. Is that the original belt?
  9. K

    Pressure/Vacuum Test Lower Unit Sterndrive Merc Alpha One Gen One.

    The main purpose of the lower seal is to protect the upper seal. Once the lower leaks the lower end of the driven gear will rust which causes the leak. If you can, try to pressure the upper case, I am pretty sure it will not hold pressure. The bottom line is you will have to take the upper...
  10. K

    water in engine, is it salvageable?

    What year is your boat? Something to also consider whichever route you take, be sure to replace the thermostat and the water pump in the drive.
  11. K

    Frustrated with shift/throttle

    Were the cables replaced?
  12. K

    Removing Castle Nut or Retainer Ring on a Mercruiser Alpha One Gen One Sterndrive.

    I would only use the genuine Mercruiser seals as replacements. In the past I have removed them very carefully by drilling a small hole and with self tapping screws and patience without damaging the shaft. I later bought the tool.
  13. K

    Removing Castle Nut or Retainer Ring on a Mercruiser Alpha One Gen One Sterndrive.

    It was a 5 Star tool set made for all the popular propeller shaft sizes. I just found one for $750.00 Needless to say I cannot remember what it cost me many years ago. However it paid for itself at the time. I was always a “special tool freak”. They pay for themselves and do not call in sick!
  14. K

    Alpha1 Gen1 Does Not Engage FWD or REV

    After pulling the boat out, lower the drive, remove the 4 bolts on the top cover. If the drive ran dry the gears will be $hreaded
  15. K

    Removing Castle Nut or Retainer Ring on a Mercruiser Alpha One Gen One Sterndrive.

    Put 10-15 lbs on the drive first. If the prop seals are leaking you will see it. As Bondo said drilling 2 holes about 2” apart and chipping out the piece. Then use the tool, the sharp edge where the piece was removed will act as a thread chaser cleaning out the crud that has built up between...
  16. K

    Mercruiser engine to omc outdrive

    Sorry, my bad for some reason I thought the OMC engine was on a Merc platform. Get a genuine OMC service manual. Crowley Marine has them and also a good stock of parts.
  17. K

    7.4 starter choice

    Is your engine a stern drive or a MIE version, left or right rotation?
  18. K

    Mercruiser engine to omc outdrive

    There is a tutorial on the Mercruiser site that will show you the correct way to adjust the linkage.
  19. K

    Exhaust Manifold question

    Another thing about your particular set up. Hopefully your manifolds are mounted with bolts instead of studs. There are some really good aluminum manifolds available now that will hold up. EMI and Imco are 2 examples. You never said which brand of marine engines you have.
  20. K

    2008 moomba shaft

    It also would be good to re check the alignment with the boat in the water before bolting the flanges together. It is possible that the trailer has caused the stringers to slightly shift over time. There are tools that will remove and replace the cutlass bearing without removing the strut...
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