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  1. Scott06

    2004 Searay 4.3 Lt w stall

    so the boat sat?if so carb prob needs a rebuild and the igntion components and timing?
  2. Scott06

    2004 Searay 4.3 Lt w stall

    Do you know if this is 2 bbl carb version or fuel injected - serial number is great if you can provide it. I am guessing you have a fuel delivery issue or carb that needs cleaning or both. First as a baseline-I would do some basic checks on ignition timing and check condition of cap rotor and...
  3. Scott06

    Merc 496 Mag Compression and Leakdown Results

    Was the bilge full over the engine ? If you have corrosion on the pan I would replace it while out. I think what my buddy who is in salt water did was replace the pan prime and coat with rhino liner or some bed liner material. Get a new starter while its out. While the pan is off you can see...
  4. Scott06

    Merc 496 Mag Compression and Leakdown Results

    to quote Jackie Gleason- that's an attention getter ... I think you would be more lucky than right just bumping the starter. I suspect if the engine is out you have bigger issues than a little higher than ideal leak down, especially if the engine sat.
  5. Scott06

    Merc 496 Mag Compression and Leakdown Results

    I would not tear into it at all based on those numbers. Is it possible the 15 % cylinder was not at tdc when taken and valve was not quite closed? Would definitely run it then retest if it makes you feel better but I think you are fine with what you have
  6. Scott06

    1989 Flat tappet 5.7 convert to roller?

    Sounds similar to when I started my gto 389 years ago , I was 180 out on the distributor. Thought the same thing worried about the lube etc , was fine. rechcek you are on compression stroke tdc not exhaust Consensus on current issues with flat tapped cams is the ones that lobes get wiped are...
  7. Scott06

    Mercruiser alpha lifting point

    You can hang it from there, I usually lay mine on the floor under the trailer can’t get damaged if it’s already on the ground
  8. Scott06

    I have a leak.

    The wye pipe can corrode through, also if you loose a flapper they can lodge in the bottom of the wye and wear through. could be any of those things. Need to look with scope camera or pull the engine and put the boat in the water so you can get in and see what is going on
  9. Scott06

    Need advice choosing an engine.

    Unless money is no object or you want to improve performance I would do a compression and leakdown test on it before deciding to replace it. If you are doing the work and have the ability to lift it, its really not so much work that I would let the fact you need to pull it drive replacing it...
  10. Scott06

    Gen1 oem impeller kit (frustrated)

    its the orange thing just below the impeller in the pump kit shown above. I have usually found that going OEM for impellers and components is best
  11. Scott06

    Distribution housing leak?

    they tend to crack. I believe @Bt Doctur rigged up a replacement made out of copper tubing
  12. Scott06

    3.0 engine removal

    Measure the height of your lifting set up. Most standard hoists wont get high enough to clear.
  13. Scott06

    Milky gear oil

    you can put your drive serial number in here it will take you to the correct parts diagrams https://www.marineengine.com/parts/mercruiser-stern-drive/index.php here is a link to parts breakdowns for 98 and up alpha gen 2 drives- it will be in the gearcase driveshaft. Not sure how old an how...
  14. Scott06

    Gen1 oem impeller kit (frustrated)

    The kits are in the parts breakdown couple different options with and without housings and bases.
  15. Scott06

    Are 88 to 95 4.3 mercruiser stock roller or flat tappet cams?

    If the block is cracked and that is putting water in the oil , it will not show up on a compression test.
  16. Scott06

    1993 classic 25 ft. Bayliner

    Agreed check the structure of the boat before you do anything. If the structure is solid then look at what is going on with the 5.0 and if you want to repower it. Yes a 25 ft with a 5.0 will be under powered. a 5.7 or 383 would do you better.
  17. Scott06

    mercruiser 888 383

    You need a marine ignition like a mercruiser thunderbolt or delco est . Basically all you keep off the 383 is the long block. You will also need a marine harness unless the one off the old engine will work. I think michigan motorz sells the ones they use on their partial engine package .
  18. Scott06

    mercruiser 888 383

    Take off the automotive fuel injection and put a 4 bbl intake and marine carb on.
  19. Scott06

    1997 5.7l water in oil. replace?

    They may be GM makes changes as they see fit and doesnt tell us... You also never know if a wrecking yard engine has been worked on either. Unfortunately you don't know what is in there till you look. And we all didn't think you needed pills to be crazy...
  20. Scott06

    What oil should I use?

    Agreed I switched several cars over from dino to synthetic over the years no issue, including my boat. After repower the warranty required dino oil for first 100 hrs. We are turnign this into another bottomless pit oil thread. The biggest issue OP should concern himself with is he has a flat...
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