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  1. Scott06

    Mercruiser 5.0 wont start without help getting gas to carb. But runs fine once started...

    I assume it is a newer (1996 and up) vortec with electric fuel pump. The fuel pump gets powered I think off a lug on the starter for cranking and then once key goes to run it gets 12 v off the ignition circut through an oil pressure switch (closes at 4 psi- engine not running = no oil pressure=...
  2. Scott06

    2016 4.5L mercruiser i/o Very weak performance

    What prop are you running 4200 rpm at WOT is way too low. Should be 4600-5000. It could be as simple as the prop being incorrect and dropping 2" in pitch makes it work look in the stickies at top of page there is a section on what to do if you have low WOT rpm. WHile this boat is likely...
  3. Scott06

    Claims its a cracked engine block

    Not neccessarily I saw this first hand with my neighbor a couple of years back. He got lazy winterizing, had his mechanic out after the first freeze. Freeze plug was pushed out a bit. Mechanic tapped it back in checked no water in the oil, ran it an hour same thing. Next spring he puyts the...
  4. Scott06

    Mercruiser 4.3 cracked intake manifold

    Try putting kerosene in the oil, take the spark plugs out and turn the engine on the starter. I think this is your best bet for getting the molasses out. You will need to do several times and also after you get it running again chacnge the oil and filter multiple times until it goes clear. You...
  5. Scott06

    Claims its a cracked engine block

    Is the progression of events: October 2020 you winterized boat stays in so cal? May 2021 you take boat up to tahoe do a one hour test run, temps around or just below freezing? Was oil level checked here after this run? You sell the boat, raw water is in engine. Two days later they take boat...
  6. Scott06

    Need help!!!! 4.3 mercruiser just clicking

    This looks like battery cable or battery issues. Clean boththe positive and negative cable connections to battery, starter, and block by flywheel cover (negative grounds block there), and take the battery and have it tested.
  7. Scott06

    Blown stern drive

    No you need to go up in pitch if you have a 21” now , a 23” would probably give you identical performance
  8. Scott06

    Blown stern drive

    Probably will work. I repowered my 4.3 to a 5.0, which from the factory would have come with 1.82 and 1.62 drives respectively. I kept the 1.82 ratio and stepped up from a 19” pitch to 21” and it works perfectly
  9. Scott06

    Is an aluminum steel prop better than stainless?

    I thought it was you smoking something, who is marketing an aluminum steel prop
  10. Scott06

    How to make the two arms even?

    I had the same after having my drive off i think i connected the drive the one farther out and worked the trim in and out they eventually caught back up with each other
  11. Scott06

    Outboard oil in Alpha one drive

    Agreed Not worth the $20 of gear lube. The premium lube is not the same as the synthetic or synthetic blend Hi PErformance gear lube reccomended for Alpha gen 2 drives like yours.
  12. Scott06

    Mercruiser 5.0L MPI 2007

    Q just gave you three. A gm vortec 5.0 or 5.7 out of boat, truck or industrial truck if you prefer a wrecking yard
  13. Scott06

    Water on piston (Hydrolock)

    I bought a partial engine package ( new base plus intake carb ignition) from michigan motorz six years ago. That was the way to go, its run great since then no issues. They also sell reman engines as well, but for a single engine not much cost differnce between reman and new
  14. Scott06

    Marine Power 340 Pulley Wobble

    Yeah not perfect but i wouldn't sweat it too much the water pump is worse, maybe there was corrosion or imperfect fit/ burr between pulley and water pump flange
  15. Scott06

    Help with charging system?

    You cant win them all. You have some spares so hopefully you never need them... at least you’ll be on the water this weekend. how many times do we hear the boat is at the mechanic for 3 months? You’re still money ahead
  16. Scott06

    Mercruiser 5.0L MPI 2007

    Two options as they dont make new base engines for votec 5.0 s anymore. 1. Get a reman 5.0 long block from a place like michigan motorz. Swap your components over and get new exhaust manifolds. 2. get a 5.7 base engine new or reman but you’d need to reflash the ECM. There are companies that...
  17. Scott06

    Buying a used boat anxiety-talk me down.

    I have a 2004 Sea Ray 200 sport which is similar to the select except the select has a integral extended swim platform and nicer interior trim. I dont think the stirngers are wood in these boats but probably a call Sea Ray would tell. Floor is FG as well. There may be somw wood in the transom...
  18. Scott06

    Nightmare

    Good deal. When I repowered a few years back I saw enough stories like this from guys who got bad reman longblocks I just bucked up for a new base engine. Hopefully smooth sailing from here on out
  19. Scott06

    Strange oil pressure

    Thumbover what hole? Not familar with measuring oil prssure that way. Yes if bearings were bad or you had low oil pressure it would make noise either from bearings or valvetrain as lifters bleed down. Ive never seen a connection between oil pressure and temp. Had cars with very low oil...
  20. Scott06

    Is an aluminum steel prop better than stainless?

    Comon beside being shinny the vengence helps the dealer make money... its an inepxensive way to say your new boat comes with a stainless prop... One other advantage of aluminum if you boat in water that has obstructions that eat props and gear cases you are better off with Aluminum.
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