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  1. Lou C

    Tuning Holley 80551 (4160)

    I'm wondering if your vacuum secondaries are opening too soon.... see this:
  2. Lou C

    Overheating and hydro locked

    I’d do a comp test and check your exhaust
  3. Lou C

    Overheating and hydro locked

    It can run in from leaky exhaust after engine is shut off or from a bad head gasket same thing
  4. Lou C

    Minor Surging After Carb Rebuild - TKS 4.3 '06

    Does your boat have removable side panels next to the engine? Taking them out makes it an easy job. Sometimes because of the design of the exhaust manifolds you might have to use a thin wall spark plug socket.
  5. Lou C

    1995 OMC 5.0L IO starting procedure? Stalls when going into gear

    Go for 600 rpm even with the cone clutch drive you have, lower is better. And keep in mind those of us who learned to drive in the 60s and 70s are used to carbed engines and chokes. We were always tinkering with them to get them set up just right. My Quadrajet fires off quickly if the boat was...
  6. Lou C

    1995 OMC 5.0L water in bilge

    Are you hearing any noise from behind the engine, like a growling, or knocking when you turn or tilt the drive up? That's a sign of a leaky driveshaft bellows and corrosion damaged gimble bearing and u joints. As normal maintenance you should: have the drive pulled at the end of each season...
  7. Lou C

    Minor Surging After Carb Rebuild - TKS 4.3 '06

    Like I had on my ‘72 Chevrolet 5.7 Now the Rochester 4bbl Quadrajet, that’s a complex carb. I’ve had mine apart a few times….
  8. Lou C

    1995 OMC 5.0L IO starting procedure? Stalls when going into gear

    While it has an electric choke, a marine inboard carb does not have a fast idle cam like it would in an automotive appliction, so after starting and putting it in gear there is no fast idle. This means that for it to not stall it has to be in near perfect tune and carb adjustment. Make sure the...
  9. Lou C

    1995 OMC 5.0L water in bilge

    not normal unless it rained a lot and the cover leaks like they all do. When was the last time the drive was off and the bellows was checked for water?
  10. Lou C

    Minor Surging After Carb Rebuild - TKS 4.3 '06

    Sounds like the fuel mix in that range is too lean hence the surging
  11. Lou C

    Overheating and hydro locked

    Well if it blew head gaskets that can let water in but not as much as bad exhaust. Both are likely to let water in after the engine is shut off and cooling down. Not much if at all when the engine is running. I had some water in a cyl after blowing HGs but not enough to hydro lock. You can drain...
  12. Lou C

    Minor Surging After Carb Rebuild - TKS 4.3 '06

    The Merc TKS carb, is this just an update of the old Rochester 2bbl? If so nothing to be afraid of.
  13. Lou C

    Minor Surging After Carb Rebuild - TKS 4.3 '06

    If it does not do it on the muffs but in the water it’s related to the load on the engine.
  14. Lou C

    OMC Bad Gas

    That tank has gotta go!
  15. Lou C

    Minor Surging After Carb Rebuild - TKS 4.3 '06

    Are you sure there are no vacuum leaks (gasket under the carb, any vacuum lines hooked up to the choke pull off, etc). Carefully make sure the bolts holding down the carb are snug (do NOT over tighten). I had a slight uneven idle condition on my Quadrajet that was solved by replacing the thick...
  16. Lou C

    OMC Bad Gas

    Or your local town recycling center
  17. Lou C

    OMC Bad Gas

    That’s a LOT of water I think the only way is to pump that tank out or at least keep at it till you don’t see anymore water coming out! Then make sure the gasket on the gas fill is not leaking. Here’s what mine looks like every year, original tank 33 years old!
  18. Lou C

    Getting Shocked When Using Trim

    I had this with my OMC Cobra with the original OMC control and what I found was that one of the wires inside had frayed and was touching the metal handle. I fixed it by sealing up the bare spots with liquid electrical tape.
  19. Lou C

    Back up camera on trailer

    I have the magnetic eyeball camera that is used on the hitch. I needed it for backing into my narrow driveway from my narrow street. What I did was mount a metal plate above my garage door and when I get back from pulling out the boat I stick the camera there. Then I can see the driveway from...
  20. Lou C

    What can cause this to shift bellows ?

    Well that could be it. I have heard that beavers and muskrats sometimes like to chew on these. I’m in salt water so different problems. We can get barnacles on the bellows which can damage them. My next boat will be outboard only….
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