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  1. Lou C

    Water in Oil (Again) Head Scratcher

    I would air pressure test the cooling system see if it holds pressure over time & check the flatness of the sealing surfaces of the manifolds & elbows.
  2. Lou C

    1986 OMC Stringer Sterndrive 4.3L 4v Quadrajet HP?

    2bbl is 175 hp 4bbl is 205 hp
  3. Lou C

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    What tells me that it’s definitely a joint venture product is the sticker on the engines that says manufactured by Volvo Penta Marine of Lextington Kentucky. Yours is labeled an OMC Cobra with an OMC model # and OMC parts numbers. But, the VP & OMC parts were identical and at one time the part...
  4. Lou C

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    The 94-98 Cobras built during the joint venture years are exactly the same as the Volvo SX of the same year the only differences are color (SX silver, Cobra Charcoal Grey) and one has an OMC model # the other has a Volvo model #.
  5. Lou C

    Brake drum and bearing cap questions

    I have those too (super lube) one thing I added is a bearing buddy cap which is an extra barrier to keep out water.
  6. Lou C

    Mercruiser Spark plug broken

    There are a few sizes like that; the other is 3/4” & 19mm
  7. Lou C

    Mercruiser Spark plug broken

    very nice Ted how much if you don't mind my asking?
  8. Lou C

    Oil Analysis Poor Sample

    Yep thinking back, I did this test even before I had the overheat, tested it in the water and I had bubbles. And, I was getting sodium in my oil report back in 2011, so the head gaskets were starting to leak then, but I didn't really put 2+2 together, or maybe figured that I'd wind up replacing...
  9. Lou C

    Extra cost(s) breakdown of storing boat in a saltwater marina?

    The alu outdrive paints have gone way up, a qt can of Trilux used to be $80 now it’s $130, spray can of Trilux used to be $35 now it’s $58. Anodes I paid about $65 aftermarket Engines? If not closed cooled as Ted said you get about 15 years of trouble free use. I’m still running my original 1988...
  10. Lou C

    Brake drum and bearing cap questions

    The hole is probably to adjust the drum brake shoes not to let water out. The seals could have been leaking a long time & you wouldn’t know unless you pulled the drum to inspect. With drum brakes you can’t see if the seals are leaking like on disc brakes.
  11. Lou C

    Water in Oil (Again) Head Scratcher

    Rotted intake will put water right in the motor oil but not in cyls.
  12. Lou C

    procedure to manually flush non-running 4.3 engine?

    including mine here’s 6 boats moored behind my house that range in age from 25-35 years old. When I head over to the local gas dock I could take many more prob 25-30.
  13. Lou C

    procedure to manually flush non-running 4.3 engine?

  14. Lou C

    Water in Oil (Again) Head Scratcher

    When I installed my Barr Marine exhaust the sealing surfaces were flat to .001”, excellent
  15. Lou C

    Water in Oil (Again) Head Scratcher

    Well if you found water in the bottom of the manifold after removing the elbow yes but: ideally drain the exhaust first since a full manifold can spill over into the center exhaust passage when you remove the elbow…that way any water you see there was likely due to a leak. Yes it’s savable if...
  16. Lou C

    5.0 MPI Misfire Under Load

    #2 that’s black wonder if that injector is sticking open/dripping fuel?
  17. Lou C

    2013 Volvo Penta 4.3GL Oil Pressure Drop & Valve Tapping / Rattle

    I use a Topsider vacuum pump with a garden hose connector, it gets most of the oil out but you still have to be mindful of not overfilling and just keep the stick out for a few min to allow the level to equalize in the tube if you have that design. I wouldn’t be surprised if they give oil...
  18. Lou C

    above vs below deck fuel tank

    The other concern is if you have batteries/wiring in the console.
  19. Lou C

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

    Yep glad you got it sorted & glad to hear the solution. That’s why I kept my Prestolite points distributor with simple mechanical (centrifugal) advance. No modules to go bad & then have to search for…
  20. Lou C

    '86 4.3L OMC Stringerdrive runs to almost 200°

    OMC used a 160* thermostat so that’s just about right. I have those same Medallion gauges and they all still work. 75* C (top scale of numbers) is about 170. Mine never goes over 175 (80*C) as long as all is well. Replace your impeller every 3 seasons and you should be good.
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