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  1. Scott06

    Alpha I Gen II impeller install.

    the gasket and lower plate kit are different than was originally used on gen 2 s. nothing different in manual, just replace in correct order. I have had merc tell me to put the metal gasket on dry, mechanic at the place I bought the impeller kit say to use permatex #3 on it, done it both ways...
  2. Scott06

    Mercruiser 3.0 won't throttle up

    Exactly, and the guy is on vacation using the semi working boat. Either leave a helpful answer or move on... Only other thing I might add to OP would think it is carb related but also check that timing is advancing - Dont know the total advince of your exact engine but shooting from the hip if...
  3. Scott06

    Learning to wake board at 48. What am I doing wrong?

    Makes me feel better, I can only go left on the board.... 100% right you have to drive different than skiing. On take off I end up using full throttle but lay into it much slower than pulling skiiers. The difference in getting up between the tower and the transom hook is dramatic.
  4. Scott06

    MC-1 Gimbal bearing snap ring.

    Go OEM for the bellows and water pump. My OEM bellows lasted 18 years . If you still have a good greaseable gimbal bearing then leave it there. you can check by turning it. Would also do the trim sender/limit if you have them (older ones do not) . Check alignment I have done water pumps just...
  5. Scott06

    Mercruiser 3.0 won't throttle up

    Make sure there is not a vacuum leak at carb base gasket if non go back and rebuild carb again
  6. Scott06

    MC-1 260 swap

    yes light boat and also the weight of your right arm... There was a thread on here with a guy with a 24 ft bayliner, stock 5.7 merc with alpha that kept tearing gears up. So in smaller boat may be fine with good lube and drive shower. Sounds like you have a bunch of parts and know what you are...
  7. Scott06

    MC-1 260 swap

    I belive all you would need for the Gen2 swap is the flywheel cover off a later (than your MC1) engine. They changed the rear motor mount spacing between the MC1 and Alpha gen one. I think it makes sense based on what you lay out. The gen 2 is current production so parts will continue to be...
  8. Scott06

    Distributor 2-wire Ignition Sensor Help

    agreed wrong part or he has a different dizzy (but wires are correct color for TB...)
  9. Scott06

    Water in cylinder, oil and carburetor

    A bad head gasket or leak between manifold and elbow/riser could cause water in a cylinder, as could a cracked head. But I doubt at 115 psi you had a leaking head gasket and its obvious the manifold was full of water by the carb. So doubt there was any issue with the head gasket or elbow to...
  10. Scott06

    Water in cylinder, oil and carburetor

    gotcha. never seen that but makes sense not like the stud is water tight. Other thing is condensation under the covers, the one year I had to leave my boat outside I out a plastic trap over the snap on cover , holy chit in the spring ...
  11. Scott06

    Water in cylinder, oil and carburetor

    Not the flame arrestor, the flame arrestor cover. It is a plastic cover that goes on top of FA that is bigger than it keeps water from dripping on it. On the V6/V8 engines it also covers the distributor, which on my boat is right under the seam between the hull and the sunpad so gets wet when we...
  12. Scott06

    Water in cylinder, oil and carburetor

    Looks like you got water in the carb and down in the manifold. Was flame arrestor cover on it? This is one of the reasons the cover is for. do the valves close fully on those cylinders or have rust on them. May want to take head apart and consider valve job. In hindsight Would have been good to...
  13. Scott06

    2005 Mercruiser MPI 5.0L misfiring(?) when in gear, idles fine

    I think it is a standard GM cap used on their trucks I dont think the cap is marine rated , just the dizzy
  14. Scott06

    Transom leak. 4.3l mercruiser with alpha one gen2

    only if you say " hey guys watch this" before putting it into gear...
  15. Scott06

    2005 Mercruiser MPI 5.0L misfiring(?) when in gear, idles fine

    I missed the dizzy cap in first post. You are right in your research that the 3 wires sensor on TB ignitions is better, just your MPI engine uses a different system. Hopefully AD can come up with some ideas for you
  16. Scott06

    2005 Mercruiser MPI 5.0L misfiring(?) when in gear, idles fine

    Mpi uses a different distributor and ignition than the thunderbolt system that has the sensor you speak of. Mpi fires off crank sensor . the crab style distributor caps on mpis are known to cause misfires has your been changed
  17. Scott06

    Gen 1 305 swap with gen 2 4.3

    if the guy is swapping complete bobtails even with crank vs flywheel mounted coupler wouldn't matter. Pre '82 the rear motor mount spacing is different, but that is a different animal than what the OP has.
  18. Scott06

    Gen 1 305 swap with gen 2 4.3

    I did a 4.3 to 50/305 swap on a 2004 sea ray 200 sport. You need about 4” in front of the 4.3 as the 305 is longer. Side motor mounts will also be about 4” farther forward. My boat was offered new with 4.3 and 5.0 engine options so I had space in front and the engine mount stringers were long...
  19. Scott06

    Mercruiser 470 Rod Bearing

    Would also agree they prob are std but I woild Measure the crank joirnal To confirm size. Never know if someone has been in there before
  20. Scott06

    Won’t Start in the Water

    So when it was on the water were you missing fuel or spark? think the water vs on the hose is just coincidence. Maybe loose connection at cannon plug ?
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