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  1. nola mike

    1992 Mercruiser 4.3 Alpha One Gen II has water in oil after rebuild.

    Valve stem seals shouldn't do it. Didn't you replace all of the gaskets already? How about intake/exhaust manifold and risers? A compression test would tell you if something went really wrong with your rebuild, but best bang for the buck would probably be to pressure test the coolant system.
  2. nola mike

    1989 3.7L 224/165H

    Could a bad HX do that? coolant can leak to the raw water side, but it would take increased pressure in the freshwater side to flow out the overflow tank. You should pressure test the system, but it could still hold pressure with a bad head gasket. Did you pressure test the radiator cap? That...
  3. nola mike

    Starboard engine drain/4.3L

    Also got nervous about leaving that intake manifold drain in there. Pulled it again, and once again didn't get a drop of water out. There was a lot of space behind the drain; I can't imagine it holding enough water in there to crack anything. I think I leave it in next year.
  4. nola mike

    Overhauling my 1988 MerCruiser 4.3 ltr. engine

    Gm probably has a third value...
  5. nola mike

    Overhauling my 1988 MerCruiser 4.3 ltr. engine

  6. nola mike

    Overhauling my 1988 MerCruiser 4.3 ltr. engine

    No sealant on the head gaskets.
  7. nola mike

    Starboard engine drain/4.3L

    Hmm, I'll have to check the old block to see if that fitting is there. Almost positive that I moved the whole drain over, which had the petcock but no 90' bend. Old block had the direct drive starter.
  8. nola mike

    Starboard engine drain/4.3L

    That's what I figured, so pulled that drain first to confirm
  9. nola mike

    Starboard engine drain/4.3L

    I forget where the post was, but a few weeks ago someone was commenting that when they drained the 4.3L, the starboard side engine drain was dry. I had noticed that mine was less, uh, runny when I first drained it (last drain pulled). I did it again last weekend, first drain pulled and got a ton...
  10. nola mike

    Overhauling my 1988 MerCruiser 4.3 ltr. engine

    Why not just a new crank? I can't imagine these engines were balanced after assembly, were they? BTW, is that a break at the main or rod bearing?
  11. nola mike

    Column Replacement

    Nah, this is a "how close does my alignment need to be?" thread.
  12. nola mike

    Column Replacement

    That's the bracket I was talking about. Can't quote you the code, but those posts do support more than just a vertical load. They are structurally tied together (usually via the headers) to resist movement, and also require uplift protection. Many jurisdictions require hurricane brackets as...
  13. nola mike

    Column Replacement

    Might be more issue to trim out, but no way I'd trust screws to hold my roof up. You need support to keep the posts from shifting laterally. Also almost certainly against code. Can you get to the headers running in the roof? Preference would be to have them sit in a bracket on top of the posts...
  14. nola mike

    stern drive interchange

    Did you pressure test them and pop the top covers?
  15. nola mike

    Mercruiser 470 Cam Seals 1985 Sea Ray Monaco 185

    Excellent write up, thanks!
  16. nola mike

    470 Operators

    More info is always better
  17. nola mike

    No spark plug spark... 170 MC , 1985 Sea Ray

    Whoops. Everyone forgot that this is a 170. The 12v coil voltage is supplied by the slave solenoid, not directly by the starter.
  18. nola mike

    No spark plug spark... 170 MC , 1985 Sea Ray

    Did this not seem like relevant information before now? 🙄
  19. nola mike

    No spark plug spark... 170 MC , 1985 Sea Ray

    Wondering if something is intermittently shorting to ground the coil neg. Open the points and check for continuity to ground from the coil neg.
  20. nola mike

    Thermostat Housing Check Balls

    I didn't have the fitting on mine (I have an automotive block).
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