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  1. Lou C

    Flushing Muffs

    What I found with the dual inlet ones that look like they SHOULD work great is that the rubber used is too stiff for it to flex to the shape of the lower unit. They would work better if the cups were circular and made of softer rubber. The Merc/Quicksilver ones work great. Never had a hot...
  2. Lou C

    1995 Stingray 4.3L Mercruiser No Start

    When you remove the old filter check the mounting pad you may see some oxidation on the aluminum mount pad. That is what causes some of these to lock up & be really hard to remove. You can clean it up with some fine sandpaper. Lube both the pad & rubber gasket with motor oil and fill the filter...
  3. Lou C

    Flushing Muffs

    The round Quicksilver ones with the metal wire clamp work the best of all I tried.
  4. Lou C

    5.7 Vortec Runs Great On Land but Bogs Under Load in Water

    The anti siphon valve at the gas tank fuel line connection is a possibility
  5. Lou C

    Volvo Penta 4.3GL-D Tapping Noise Videos attached

    That does sound like it could be valve train related, I would get a mechanics stethoscope so you can accurately localize it. If I recall the valve train on the later 4.3s are not adjustable like in the older ones like mine where you’re not adjusting valve lash per se but rather adjusting the...
  6. Lou C

    Two wildly different compression readings, why? On in around 60 and on around 200?

    Well the low one could be a valve hanging open or bad rings….the high one could be water in a cyl….
  7. Lou C

    How Much Voltage Drop Is Too Much?

    I had that same problem with my ‘88 Four Winns. Cleaned all the connections etc. Thought it might be inadequate grounding & tried running an extra ground from the fuse box back to the engine ground but that didn’t affect it. What did was adding a supplemental power lead from the battery switch...
  8. Lou C

    BRP reveals a new style of outboard, Rotax powered, horizontal crankshaft....

    That’s what I’ve always said, they’re fine until you have to do some internal engine repairs and then because of parts cost, complexity and aluminum corrosion it’s not as easy as repairing an old school Chevrolet small block. So modern OBs are fine if you buy new or like 3-5 years old then here...
  9. Lou C

    Cannot Get Dust Cap On!!!

    Call Eastern Marine in Newark Delaware and ask which brand are good and order enough for your hubs from them. They are good for customer service. Also inspect the inside of the flange on your hubs, is there a burr or surface that isn’t machined right?
  10. Lou C

    1978 5.7l pre-alpha with alpha gen 1 drive over heating

    Chevy small blocks are easy to take apart & repair but you have to know what you’re starting with. Might want to line up a machine shop to check out the heads if you do wind up taking it apart based on testing
  11. Lou C

    1986 4.3 Cracked Intake Manifold - please help with recommendations for 4 barrel combo

    You can also find used GM cast iron intakes on eBay, I picked one for my old 4.3 because I thought it would have rusted through by now but it’s still good! I do check it every year.
  12. Lou C

    1978 5.7l pre-alpha with alpha gen 1 drive over heating

    You might want to investigate further there are many causes of low compression. Could be valves not seating due to leaks from the manifold to elbow gasket, or worn rings. To further investigate leaky head gaskets replace the stat housing to ex manifolds hose with clear hose. Run the boat in the...
  13. Lou C

    Easiest to crank manual winch

    I have a 2 speed for my ‘88 Four Winns that is about 4,000 lbs. makes it much easier but I have a roller trailer which is easier still than a bunk. My brothers boat is about the same size on a bunk and it’s much harder to winch even with the 2 speed
  14. Lou C

    Water leaking from block but pressure tested fine?

    that looks like previous freeze damage repaired.
  15. Lou C

    Ideal tongue weight?

    If you’re at 8/9 % I think you’re fine. Good work!
  16. Lou C

    Correct oil for PCM stern drive

    If you have any of the oil oil left you might send off a sample to Blackstone & let them tell you what it was….
  17. Lou C

    BRP reveals a new style of outboard, Rotax powered, horizontal crankshaft....

    It all makes you wonder what would have been if BRP came out with a 4 stroke outboard for the Evinrude line back when Yamaha & Mercury were changing over…
  18. Lou C

    BRP reveals a new style of outboard, Rotax powered, horizontal crankshaft....

    I don’t think the 2 sets of gears are necessarily a problem because what causes problems with that set up in I/Os is the bellows and lack of maintenance & need to pull the drive each season. The other potential advantage is the horizontal crankshaft design is likely to have much less thrust...
  19. Lou C

    Risers - think I caught this just in time?

    Not sure what Merc did when the Vortec V6 came out (they used that dreadful one piece system) but I know that V/P changed the shape of the alu down pipes to a sharper angle and installed one way check valves in the elbows to break the vacuum formed in the exhaust...they let air in under vacuum...
  20. Lou C

    BRP reveals a new style of outboard, Rotax powered, horizontal crankshaft....

    https://www.manitoupontoonboats.com/us/en/discover-manitou/advantages/rotax.html Interesting, it is a low profile outboard with a horizontal crankshaft design, appears to be a DI 2 stroke.
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