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  1. Lou C

    Mercruiser 4.3 L Manifolds

    PS that conversion kit I think is about $1200 from Barr. Check out Lighthouse Marine (Partsman) in Riverhead Long Island they do stock them & will ship to you. They are local to me so I just drive out there & save on shipping…
  2. Lou C

    Mercruiser 4.3 L Manifolds

    Barr Marine makes a nice conversion kit for the batwings and is a good deal cheaper than Merc OEM. The key to it is the down pipe adapters that allow you to use the same Y pipe. I did I similar conversion on my OMC 4.3 with the OMC batwings. I used standard OMC/Volvo manifolds & elbows and...
  3. Lou C

    Mercruiser 5.7 EFI Water in Oil

  4. Lou C

    Mercruiser 5.7 EFI Water in Oil

    It’s water passages but only some of them however I’d just put sealer on all the bolts. Pretty much a small block Chevy thing but other engines are like that too. The thing that messed up a lot of engines was confusion when the Vortec engines came out. The torque spec for the intake was like...
  5. Lou C

    Does anyone remember when car & boat engines only had.

    I refuse to: Get rid of my boat with a carb & no electronics Get rid of my 2 stroke yard equipment. I have a bunch: 1998 Toro 2 stroke Suzuki 5 hp snow blower Echo trimmer Echo blower Echo hedge trimmer Husqvarna chain saw All the Echo machines are about 20 years old, excellent machines good...
  6. Lou C

    Another gear oil thread... 80w-90 vs. 90

    Living on an “island” we have plenty of boat supply stores so don’t ever have to go to Walmart lol.
  7. Lou C

    Mercruiser 5.7 EFI Water in Oil

    Do both sides, take heads to a machine shop to check for cracks & maybe do a valve job at the same time. Mine both had cracks from a bad overheat but amusingly it ran fine with normal compression until I started getting water in the oil & a bit of water in 1 cyl, just a trace of water in the...
  8. Lou C

    Mercruiser 5.7 EFI Water in Oil

    This can be tricky to figure out. A leaky intake gasket will put water in the oil vis the cam valley but not in the cylinders. A leaky head gasket can put oil in both. To further complicate things a bad HG doesn’t always show up on a compression test. Mine didn’t! I did the clear hose test...
  9. Lou C

    Tips On Replacing Starter

    The new style PMGR starters are so light that you can hold it up one handed & get the bolts started
  10. Lou C

    Starter install help.

    Try to get down by the starter and take a pic of the wiring on the solenoid. There is a wire that you didn’t mention that goes from the solenoid positive terminal up to the alternator B+ (output) terminal. Is this in place?
  11. Lou C

    Major engine malfunction today and could use advice on next steps

    The wiring issue might be a result of the overheated exhaust manifold melting wires or connections. If the impeller was intact you should really consider inspecting the exhaust system; in salt water it is a regular maintenance item that may require replacement every 5-7 seasons. Sometimes you...
  12. Lou C

    Stupid me, no oil

    You really have to spray them with Corrosion X every few years. I’ve been doing that and my 1988 4.3 still has the original pan & it’s been kept on a salt water mooring for 20 seasons 5/6 months each season.
  13. Lou C

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    Power valve is supposed to open at a specified vacuum level and enrich the fuel mix. Head over to Holley.com there are many videos & info on how these carbs work. Probably 85% of all the carbs on Hot Rods & many classic cars are Holleys because they are a standard design modular carb in...
  14. Lou C

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    OP has a simple Holley 2bbl not the EFI. I’d prob go thru the carb again & carefully clean the jets, passages & air bleeds. Replace all gaskets & install a new accel pump diaphragm
  15. Lou C

    Tow Smart "Submersible" LED tail lights are junk... better solution?

    That could be the ones I bought 9 years ago were made here.
  16. Lou C

    Tow Smart "Submersible" LED tail lights are junk... better solution?

    https://tecniqinc.com/
  17. Lou C

    Tow Smart "Submersible" LED tail lights are junk... better solution?

    American made & excellent Tecniq lights Installed in 2015 still working, salt water trailer
  18. Lou C

    Stupid me, no oil

    Just thought of another thing Does this engine have the dipstick that hooks up to the drain plug in the pan? If so, there is supposed to be a rubber plug where the normal dipstick would go. If this rotted out or fell out you’d lose a LOT of oil! Starboard side of the block right at the bottom...
  19. Lou C

    Stupid me, no oil

    I just saw a super powerful black light on South Main Auto’s you tube. Put some dye in the oil & it will be obvious!
  20. Lou C

    Cracked intake manifold

    Is this a ‘96 and up Vortec? I recall reading that these had a drain plug in the front of the intake that has to be pulled to avoid freeze damage. Not present on the older pre Vortec engines…
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