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  1. nola mike

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

    This makes me think the problem is the points, or adjustment of the points. EDIT: hadn't read @Scott06 response. Agreed.
  2. nola mike

    4.3L intake manifold drain?

    That's what I did, but nothing came out = no need to pull it. Looks like this weekend so far is shaping up to be around 70', sunny, no wind. So I may yet dewinterize and rewinterize. Missing the 470!
  3. nola mike

    Output shaft slop

    The important part is not the shaft wear, but the coupler wear. IIRC they're aluminum or something significantly softer than the shaft. And no, you can't use the shaft as an alignment tool. The tolerances are tighter on the tool.
  4. nola mike

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

    Might be worthwhile to try disconnecting the coil (-) wires. Put a jumper on coil (-) and with the ignition on, touch the jumper repeatedly to ground. You should get a spark from the coil tower whenever you remove the jumper from ground. That will take the points out of the equation for now...
  5. nola mike

    4.3L intake manifold drain?

    So, went to winterize today (so final compared with the 3.7l!). Wow, glad I removed the petcocks and probed the drains on the block. Not sure the purpose of those except to help sell short blocks in the spring. All took me 30-40 min, could do it easily in half that next time I think. But I...
  6. nola mike

    Running lean after engine swap

    All from last weekend, a bit chilly today. So it looks like this was the problem. My tach adjustment is weird, and I needed to put the screw between 2 settings. It's now reading consistently 150 rpm high, which I can live with. Also checked my fuel consumption, which was 3.8+ mpg over 85 miles...
  7. nola mike

    Bravo 3 oil fill siezed

    +1... Impact screwdrivers are amazing. I have the HF model above, used it a couple of weeks ago for a seized gear lube screw on an alpha
  8. nola mike

    Crud in carburetor, is it a problem?

    Did you check your compression?
  9. nola mike

    No spark 4.3 Mercruiser

    That's what the switch does; when it has oil pressure the switch closes and connects the power from the purple wire to the p/y wire.
  10. nola mike

    No spark 4.3 Mercruiser

    Then stop copying me
  11. nola mike

    No spark 4.3 Mercruiser

    I'mma stop posting now until Rick goes to bed.
  12. nola mike

    No spark 4.3 Mercruiser

    No, that's what it should be doing. Test either how I said or how Rick said. Actually, do mine first to make sure you're getting 12v at the switch.
  13. nola mike

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

    Not if he doesn't have a spark. Op, not sure what you're testing there. I *think* what you're doing is essentially checking for 12v at the coil (-), which isn't useful, and will get you those results.
  14. nola mike

    No spark 4.3 Mercruiser

    No, that looks correct on his motor. You should get 12 v from p/y while cranking, starter powers it. When oil pressure rises and you're in the run position, starter no longer supplies voltage. At that point the switch closes and 12v is supplied by purple through the switch to p/y. P/y supplies...
  15. nola mike

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

    And when you use it wrong it's confusing. Current and voltage are measured differently.
  16. nola mike

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

    If it backfired then you have spark, probably at the wrong time. I'm guessing your wires aren't in the right place.
  17. nola mike

    How can I fix the water leaking at the stern for my boat?

    This guy came on looking for reassurance about a quick fix, found that facts didn't fit what he wanted to hear, and is now going to do a completely half assed fix, ignoring that his boat may be unsafe (but at least he has an auto bilge pump). Op, hope you have your guests sign a waiver before...
  18. nola mike

    2003 SeaRay 200 Bowrider seized engine????!!!!

    @alldodge , what would have to be done to the ecu to upgrade to a 5.7? Cost?
  19. nola mike

    No spark 4.3 Mercruiser

    Sounds like op might have the wrong switch. There shouldn't be an acc position. Unless you are doing something outside of factory wiring, nothing should be attached there. Purple is powered in the run position.
  20. nola mike

    No spark 4.3 Mercruiser

    I can't get you to the right link on my phone, but go to http://boatinfo.no/ and look for manual #26. You can find a wiring diagram there
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