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  1. Scott06

    3.0L comparability

    Just pressure test the cooling system.
  2. Scott06

    Mercruiser 5.0 replacement

    I missed that 100% if it’s just a head gasket due to overheat worst case you need the head resurfaced and valve job
  3. Scott06

    1997 5.7L thunderbolt ignition. Slow crank

    they were really good in my experience, although I bought a new extended base vs rebuilt. They gave me partial core for the old cracked block 4.3 and also worked with me to tweak their 'Silver' engine package to get it how I wanted it. They swapped out the delco est for a TBV set up so I could...
  4. Scott06

    Mercruiser 5.0 replacement

    If it is a vortec long block 96 and newer it is identical to what you have. Good time to drop in a 5.7 which is externally identical. May have to reject the carb or step up to a 4 bbl edelBrock 1409. I installed a partial engine from these guys in 2016 has worked excellent for over ten years...
  5. Scott06

    1997 5.7L thunderbolt ignition. Slow crank

    if you haven’t checked out MichIvan motorz worth a look https://michiganmotorz.com/5-7l-vortec-marine-engine-1996-2020/
  6. Scott06

    3.0L comparability

    borescope won’t show if crack is through to the crankcase so you are right to find another engine
  7. Scott06

    3.0L comparability

    yes that may be true as well, the early inlines (not sure the years) used a shorter input shaft. Unless you have all of it together in front of you or have done the swap expect some mixing and matching
  8. Scott06

    3.0L comparability

    bellhousing likely will fit but coupler will not your old one bolts to crank ub via studs where flywheel attaches. Hub on newer engines (post 1990). So if you target getting a pre 1990 3.0 with 2 pc rear main seal the coupler will fit
  9. Scott06

    3.0L comparability

    the the flywheel size and coupler mounting changed in 1990 when the 3.0 went to a one piece rear seal. so as long as you have a complete bobtail it will work with one hitch- the rear motor mount spacing changed when the R.MR, Alpha one was introduced in 1982 ish. So you would need the later...
  10. Scott06

    1997 5.7L thunderbolt ignition. Slow crank

    check the reviews on rapido seems to be hit or miss there
  11. Scott06

    1997 5.7L thunderbolt ignition. Slow crank

    100% unless its a rotten transom boat. My buddy just sold his 02 glastron GX185, Fing swim ladder was screwed into transom at water line... predictable results. He sold the whole boat for $1500 to a guy who needed a long block
  12. Scott06

    1997 5.7L thunderbolt ignition. Slow crank

    I bought a partial engine from Michigan motorz in 2016. New base engine, intake, carb, ignition , wiring harness and fuel pump. Just added exhaust and my accessories from old engine. No guess work and has been trouble free for a decade plus now. Sometimes spending more up front is better. And...
  13. Scott06

    1997 5.7L thunderbolt ignition. Slow crank

    The 090M 4.3 (M for metric) were used in early 2000s, yes unexplainable mix of metric threads on side motor mounts , starter bolts, and flywheel cover fasteners, SAE for the rest
  14. Scott06

    Engine misfires after rain storm

    No that why he suggested to replace. Typical symptom of misfire when wet is bad cap rotor and wires. If you don’t know when they were replaced start there. Check your timing and spark plug condition as well.
  15. Scott06

    1999 MerCruiser 4.3 Alpha 1 Gen 2 Ignition Type and Timing Question....

    Yes that is a TBV without a Knock sensor. yet to see a knock sensor on a 2 bbl engine. Knock sensors will have a knock module piggy backed to the ignition module. in base mode the timing will not move as the TBV will constantly be advancing the igntion to get best idle and power when advancing...
  16. Scott06

    Exhaust bellow slipped off

    I had the oem clamp walking off the exhaust bellows on the bellhousing side of my gen 2 when I did it a couple years back. I think the transom end I put on with adhesive, bellhousing end popped off when I tightened the clamp. So b6 the time I got it to stay there was not much adhesive left, just...
  17. Scott06

    Switching from Volvo TBI to Carb on a 1996 5.7 GI

    nice I prefer carbs for these applications exactly for the reasons mentioned. I keep a carb kit for them on hand, but havent had to use it. Did you have to change jetting on it for the 5.7? On my 5.0 only thing I had to do was tweak the accelerator pump nozzle and linkage. There was some...
  18. Scott06

    1987 OMC Cobra Leg "Do not remove Plug"

    How about a rubber expansion plug?
  19. Scott06

    Fuel pump cutting out, 4.3 merc

    correct and yes it would restart and then die after a min or two if oil pressure switch was dead. Could be anyone of several things that he needs to trouble shoot vs using the parts cannon. I had my oil pressure alarm switch working intermittently when I got my boat. It was a handymans...
  20. Scott06

    1975 Mercruiser 165 valve cover gasket ?

    https://www.rockauto.com/en/catalog/chevrolet,1975,c10+pickup,4.1l+250cid+l6,1030071,engine,valve+cover+gasket,10710 should take you to the gaskets
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