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  1. K

    Overhauling my 1988 MerCruiser 4.3 ltr. engine

    You better look inside of that carburetor, I bet it is not in good condition. I suggest you rebuild the original one.
  2. K

    74 omc 190 engine zincs location

    The only zink on your OMC is the #982277 which is located below the intermediate housing exhaust . This zink is on the website that AD suggested. If this is a trailered fresh water boat then it is probably all you need. You can add some small ones to the cavitation plate by just drilling some...
  3. K

    No electric getting to engine

    Just for kicks first check the yellow/red wires coming out of the control box then check the same wire on the small relay near the starter. Those relays are known to fail. A test light is probably all you need to check these circuits.
  4. K

    460 King Cobra oil pump

    It may be that the pieces of metal from the worn cam are stuck in the oil pump screen. Make sure to always add the zink additive supplement to the oil at every oil change or you will be getting real good at replacing the cam.
  5. K

    Planing and then stalling out

    Remove the suction tube from the fuel tank, inside the tube there may be a small screen filter about 1” long. You will have to unscrew the tube from the 90* elbow and push a small rod through the tube to remove it. Also as A-D said the anti siphon can also cause the same problem be sure to...
  6. K

    120hp OMC model number

    Just loosen the drain screws about 3/4 of a turn to be sure. If clean oil starts to seep out you should be in good shape.
  7. K

    Will it work??

    At least people on the site know how to mate an AQ together now.
  8. K

    120hp OMC model number

    Try to loosen the drain screw on the upper gear housing, do not be surprised if water comes out before the oil. The lower gear housing hopefully will not have water. The missing part of the fin can be repaired at a aluminum welding shop. All the solenoids on the engine are marine specific so...
  9. K

    Will it work??

    If this is a genuine Volvo AQ model and you are mating the lower to the mid section you will need a depth micrometer to measure the height of the bearing cup on the lower and the cavity that it fits into. And as previously stated be sure to use a new “O” ring for the water passage and the other...
  10. K

    120hp OMC model number

    Try to post some pictures of the engine and drive.
  11. K

    Intermediate bearing?

    My bad on that one, I just cannot seem to get the AQs out of my brain!
  12. K

    Intermediate bearing?

    V8 Volvos have 2 bearings and to replace the front one the engine has to come out. They are generic bearings and can be obtained from any bearing supply house or even NAPA. The worse thing that could happen will be the shaft rusted to the flex plate on the flywheel which will prevent the...
  13. K

    Volvo Penta Controls for a Trophy 2359???

    Bayliner usually rigged their boats with “generic” control boxes which use the Morse style 3300 series of cable. How about a picture of the control box end of the original cables.
  14. K

    Crank mount pump conversion - any reason NOT to do it

    Marine Power in Pontchula,La. They have the belt drive or the crank nose style. If you have 6” in front of your crankshaft then the best one is the crank nose style like Volvo has used and are the easiest to service. The belt driven style is more compact but depending on your boat‘s bilge...
  15. K

    Crank mount pump conversion - any reason NOT to do it

    Mercruiser suggested in a service manual to connect the supply from the drive pump to the thru hull fitting using a “Y” connection On the MPI models. I set my Donzi up that way and it worked perfect. If your exhaust exits through the drive then you want to keep the water going through it. You...
  16. K

    Engine won’t turn over

    With a little luck you may find a rotted out Bayliner that has a good drive. There is a boat salvage yard here in New Orleans that has a few of them where they chain saw the transoms from rotted boats and sell off the remainder of good parts.
  17. K

    1989 3.7L 224/165H

    Have had the heat exchanger pressure tested?
  18. K

    Engine won’t turn over

    Remove the 2 socket head screws from the steering helmet. With a 1/4” 20 bolt about 2” long screw the bolt into one of the threaded holes in the helmet to back it out. Flip the helmet forward and remove the worm clamp on the bellows and the front clamp also then work the bellows forward...
  19. K

    Overhauling my 1988 MerCruiser 4.3 ltr. engine

    I always used Permatex #2 black for the head bolts. The main thing as Lou said run a tap through the bolt holes.
  20. K

    Mercruiser 6.2L MPI overheating

    At this point you have 2 options. Use heat in the area of the screw and with some vise grips gently try to get the screw to move back and forth while using some penetrating oil which might work. Shear off the screw and drill and tap new 10/32 threads to remount the sender which I have done in...
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