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  1. Scott Danforth

    OMC 140 3.0l drive compatibility

    then you dont have power trim. just tilt.
  2. Scott Danforth

    93 vp aq570 with 280 drive hydrolocked??

    pull the hose off. that little casting will corrode in fresh water within 3-5 years and about 1.5-2 years in salt water.
  3. Scott Danforth

    Am I just nuts???????

    There are people that also like Ford Pintos and AMC Pacers, those people have a straight jacket Tri-hull boats have 1 pro, and about 5000000000 entries in the con category
  4. Scott Danforth

    OMC 140 3.0l drive compatibility

    trim gauge is different range / style / signal you no longer have tilt up/down with mercruiser you could get the other senders and tach to work with some effort. however you will need to rewire everything You can get brand new gauges that look like they were made in 1907 if you wanted...
  5. Scott Danforth

    water pump pulley

    or soak your current pulley in oxalic acid to remove the rust and rattle can it with rustoleum ( under $3)
  6. Scott Danforth

    Prop Size for performance

    or go to the prop forum and answer the 6 questions in the sticky.
  7. Scott Danforth

    Arro, lower unit issues

    its an eska motor with an Arro label. look for the eska breakdowns. plenty of them out there.
  8. Scott Danforth

    OMC 140 3.0l drive compatibility

    remember, you will need everything. not just the engine and drive, however the mounts, exhaust, steering, harness, gauges, controls, control cables if you want to transplant into your boat, get the whole boat the motor and drive is in. you will need it. you will then dispose of what remains.
  9. Scott Danforth

    Fuel delivery

    there is a relay for each pump. see the schematic in post #9
  10. Scott Danforth

    1992 four winns OMC

    However unlike a car, your boat can sink
  11. Scott Danforth

    Mercruiser 4.3LH backfiring & weird timing

    Looks like there is a witness mark on the exhaust valve in the last pic
  12. Scott Danforth

    1992 four winns OMC

    With a new to you boat, you have to do all the maintenance that the prior owner never did Pull the drive, check alignment, gimbal and u-joints. Do a bellows job. Check stringers and transom for rot
  13. Scott Danforth

    1992 four winns OMC

    Have you done a bellows job?
  14. Scott Danforth

    1992 four winns OMC

    See if the water is coming in around the transom shield
  15. Scott Danforth

    2002 5.0 GXI Cooling System Service

    Pull the block plugs and flush
  16. Scott Danforth

    1988 thompson 240 color match

    Would be cool ... However it's vaporware.... Like a politician that tells the truth. Just ain't gonna happen Gel starts to fade after 6 months. Yes, 6 months After 36 years, you are looking at either respraying the whole hull with gel, or respraying the whole hull with paint.
  17. Scott Danforth

    OMC 140 3.0l drive compatibility

    Being a 1979, you need a 1978-1980 stringer drive. The 1977 and older are different, the 1981-1985 are different And no, the only thing common between an OMC Stringer 400/3.0 and a Mercruiser alpha 1 /3.0 would be the block, head, and rotating assembly. Everything else bolted to the motor...
  18. Scott Danforth

    Leak post rock hit

    Being a 1989, you may find the transom is rotten and the rock hit just mashed in the rotten wood and the transom thickness is no longer sufficient to keep the gasket compressed
  19. Scott Danforth

    1992 four winns OMC

    First thoughts are not good....post pics
  20. Scott Danforth

    . . . and I Thought Hi-tech Boat Engines Were Bad . . .

    And just like that....GM may be reading this thread https://gmauthority.com/blog/2023/08/gm-cutting-200-engineering-positions-to-reduce-costs-and-complexity/amp/
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