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  1. Lou C

    Swap an OMC 5.8 with OMC 5.7

    I also believe that is true about the transom mount. Now you have the chance to get away from the OMC parts & repair headache I for sure would do it. Plus it makes the boat way easier to sell if you do want to sell it
  2. Lou C

    Swap an OMC 5.8 with OMC 5.7

    https://www.crowleymarine.com/omc/oem-parts/stern-drive/1992/584aplamh/intake-manifold-exhaust-cooling Ford exhaust PS GM Y pipe is the same so you probably could re-use the parts from the upper exhaust pipes, and hoses from the Ford engine with the manifolds and elbows required for the GM 5.7...
  3. Lou C

    Swap an OMC 5.8 with OMC 5.7

    What you’d have to do is go thru OMC parts manuals to see what parts are different between the GM engine versions vs Ford. Likely items to check: Bellhousing Exhaust Y pipe Exhaust down pipes If it were me I’d take this chance to swap the whole thing over to Merc; if you want to keep the boat...
  4. Lou C

    Exhaust Bellows 3.0 cobra

    if you have a lot of water by-passing your muffs get these.... the rubber is softer and conforms to the shape of the lower unit better than the harder rubber Tempo and other ones using the rectangular muffs...
  5. Lou C

    battery charger question....

    That's what I thought, I'm not going to use that one anymore. The NOCO seems to charge at a rate safer for the batteries.
  6. Lou C

    Exhaust Bellows 3.0 cobra

    If that goes back to the transom mount yes. Looks like it connects to the power steering cooler then should go back to the transom mount behind the engine Ford 2.3 liter OHC engine right? Those were used in all kinds of small Fords throughout the 70s and 80s
  7. Lou C

    Exhaust Bellows 3.0 cobra

    I have found that the Tempo style and other muffs with the rectangular cups don't fit as well as they used to, I also think that the rubber is stiffer than it used to be, I found the best ones are the Mercruiser/Quicksilver round ones with the metal rod clamp. Also something else you can do if...
  8. Lou C

    battery charger question....

    Question, I have an older Schumacher "smart" charger that I have had, about 10 years. Today I was using it to charge one of batteries on the boat, the other battery I was charging with a newer NOCO 10 amp charger. Just out of curiosity I checked the charging voltage of both batteries, the one on...
  9. Lou C

    Considering a new Porta-bote 8 or 10 foot

    I have a couple of Walker bay boats; a 10’ and an 8’, not easy to transport but nearly indestructible & very rugged.
  10. Lou C

    VP SX-M Trim Hose replacement without pulling drive?

    I would use a thread chaser rather than a tap; I think it’s safer. Also don’t fear pulling the drive & pivot housing; a very important job on these is replacing the drive shaft bellows & both need to come off to do that. I did the bellows on my Cobra which is very similar to the SX & it just...
  11. Lou C

    Considering a new Porta-bote 8 or 10 foot

    Hilarious
  12. Lou C

    Quicksilver 5W30 for all sterndrives

    In the case of I/Os I think the main causes of engine failure are under maintained cooling & exhaust systems…overheating & water intrusion. Oil is probably a cause only when you have a dramatic failure like a blown remote oil filter hose or rotted thru oil pan. That said I won’t use an oil that...
  13. Lou C

    PDF Service manual for 4.5L

    A relative has the 200 hp version of this in a 2020 Chap, they run well with more than enough power. The only things negative I have heard is warnings/check engine lights associated with the O2 sensors if you have cat converter exhaust. If you look at parts diagrams, compare the old GM 4.3 to...
  14. Lou C

    Mercruiser 4.3 oil gauge mystery

    possible because you need a good ground (return) path for it to read.
  15. Lou C

    Quicksilver 5W30 for all sterndrives

    It is a full syn, maybe they think that means it is OK. V/P used to specify a full syn 10w/40. I think it maybe ok in outboards since they tend to spec lighter weight oils, the old style GM marine inboards tend to shear down lighter oils more so I'd stick with 25/40, or even 20/50 for those. I...
  16. Lou C

    '92 7.4 Carburetor Accelerator Pump Not Working

    If the engine was not started for months the float bowl was likely empty (evaporation) and it takes some cranking over to fill the bowl enough for the accel pump to have anything to squirt. The best way is to take it all apart, carefully clean all the passages and re-assemble with new gaskets. I...
  17. Lou C

    '92 7.4 Carburetor Accelerator Pump Not Working

    https://www.edelbrock.com/pub/media/wysiwyg/documents/carb-owners-manual.pdf this is the edelbrock version of the same carb you have, take a look at how it operates
  18. Lou C

    '92 7.4 Carburetor Accelerator Pump Not Working

    I think you're confusing the primary throttle system with the secondary throttle system, the secondaries will not squirt out fuel till the load on the engine demands it (usually they are vacuum operated, when the vacuum drops the secondaries will open). They work like the secondaries on a...
  19. Lou C

    Mercruiser 4.3 oil gauge mystery

    That sounds like the best you could do; in the manual it said to check gauge first if it’s good then replace sending unit if the reading isn’t normal; doesn’t even have a procedure to test the OP gauge.
  20. Lou C

    1990 4.3 block and 1995 heads, which rocker tightening specs to follow?

    Here’s how I did mine… PS I found it easier to judge when the lash was at zero by trying to lift the pushrod up and down ,vs turning it. Also, mark the cyl #s and Intakes and Exhausts with a piece of tape so you don't get confused.
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