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  1. Lou C

    95 Mercruiser 4.3 water in oil

    What GM did was an inexpensive way of creating a 90* V6 using existing V8 tooling. This was done due to the energy shortage in the '70s because all they had was the Buick V6 built a few years earlier and the old GM inline 250 cu in six. They did it with the Buick V6 creating the 231 cu in V6...
  2. Lou C

    95 Mercruiser 4.3 water in oil

    What's interesting in your pix is that the water passages in the cyl heads have LESS rust than the intake ports, and your intake ports are a lot more rusted than my old ones were. So I'm still suspicious that it came in through the carb.
  3. Lou C

    95 Mercruiser 4.3 water in oil

    This is what mine looked like when the water got in from the HGs, after cleaning most of it up, notice the cyl head intake ports don't have rust in them, not like those in the pic above (remember salt water engine here). If you look close you can still see some of hte milky oil
  4. Lou C

    95 Mercruiser 4.3 water in oil

    On mine when the HGs blew the cam valley, valve covers had milky oil everywhere but no rust in the intake passages as seen there. I did get the water out & changed oil 3/4 times within a week though. Salt water doesn’t forgive!
  5. Lou C

    95 Mercruiser 4.3 water in oil

    Dog house is a style of engine cover some boats have with small jump seats on either side of the engine. Instead of the big Sun pad….
  6. Lou C

    95 Mercruiser 4.3 water in oil

    When you pulled the plugs do you poke em with a pick or similar to make sure rust flakes aren’t clogging the drains? Any suspicious rust stains on the manifolds or block suggesting freeze damage?
  7. Lou C

    95 Mercruiser 4.3 water in oil

    Agreed that pic does not look like what you have when water gets into the oil from failed head gaskets or even intake gaskets. Was there corrosion inside the carb?
  8. Lou C

    Unusual oil consumption? VP GM V8 Vortec 5.7

    Agreed if oil is burning you’d think you’d see it on the center electrodes of the spark plugs. So it’s starts out OK with 4 bar oil pressure (~~58 psi which is fine) but then the oil pressure drops and you find that the engine is very low on oil. I would do a compression & leakdown test even...
  9. Lou C

    '95 OMC 5.0L fuel line

    Great you’ll rest easier that you fixed it right.
  10. Lou C

    1995 Four Winns Horizon 190 Trailer wheel bearings

    I added brakes to mine years ago (3500 lb axle, 10” brakes) and last year upgraded to a 6000 lb axle with 12” brakes. It stops so well you don’t even feel it back there. We have steep hills here so no brakes is not an option.
  11. Lou C

    95 Mercruiser 4.3 water in oil

    It is run off the camshaft. GM found that even after adding an even fire (split journal) crankshaft to the naturally unbalanced 90* V6 there were still vibrations so the balance shaft removed the rest of those. I think they were added in ‘95. Vortec heads came in ‘96. My old ‘88 doesn’t have it...
  12. Lou C

    95 Mercruiser 4.3 water in oil

    It’s odd that this would happen given that you did the winterizing all those years & never had a problem. Do you manually drain & leave dry or back fill with antifreeze? Is it possible that water got in & ran down the intake manifold? If the boat is stored with the bow up I’m wondering if failed...
  13. Lou C

    1995 Stingray 4.3L Mercruiser No Start

    Your boat is designed so that the outdrive is totally submerged when the boat is in the water. That forces water into all the passages in the outdrive. The pump must be submerged for it to prime, and even in an Alpha drive the pump is several inches above the water intakes. On a Bravo drive or...
  14. Lou C

    1995 Stingray 4.3L Mercruiser No Start

    Impellers will not suck water with a column of air in front of it. They have to be immersed in water to pull water. Even with outboards if you run in a garbage can (like we do with our little Suzuki) the water level has to be above the top of the water pump. On land use muffs as noted or else...
  15. Lou C

    Merc 5.7, alpha 1 gen2, Rochester marine 4bbl flood gushing up out of bowl/float vent!?!

    Glad I’m not missing something all this time lol.
  16. Lou C

    Hydraulic Lifter Volvo Penta 4.3 Vortec

    Those lifters are very easy to change once the intake is off and the rocker arms & pushrods are removed. Before removing the intake set the engine so that it’s at TDC of the compression stroke of #1 cylinder and remove the distributor cap. Mark the position of the rotor on the distributor body &...
  17. Lou C

    Merc 5.7, alpha 1 gen2, Rochester marine 4bbl flood gushing up out of bowl/float vent!?!

    The brown plastic piece I think is the retainer…..
  18. Lou C

    Exhaust flappers

    Yep just like the Cobra in that respect
  19. Lou C

    Exhaust flappers

    I could be wrong but I think the single prop SX has thru the prop exhaust and the SX/DP has the exhaust housing on the lower unit....
  20. Lou C

    Merc 5.7, alpha 1 gen2, Rochester marine 4bbl flood gushing up out of bowl/float vent!?!

    notice the clip for the needle valve, bottom of the pic....
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