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Recent content by Maxum2300sr454

  1. M

    Isn't this a marine carburetor? Mercruiser V8

    Thanks! Yeah, figured out it was a Weber in the meantime too. It's still running good. I was just wondering why e.g Holley carburetors have the J formed vents and the Weber does not.
  2. M

    Isn't this a marine carburetor? Mercruiser V8

    Been reading up on marine carburetor and seeing that I dont have J formed vent tubes, I'm wondering if this isn't a marine carburetor? See picture: The engine is a Mercruiser V8 7,4l 454 big block Gen V. And I was thinking this is the original carb, on top of an original intake with GM stamp...
  3. M

    Milkshake oil - 454 big block

    Okay, thanks for the info! I have an offer on the Edelbrock part #2561 Performer RPM Q-Jet marine intake manifold - and was wondering if I should strike or not. It should be a straight bolt on I guess. I will be replacing the old intake anyways.
  4. M

    Milkshake oil - 454 big block

    Trying to find a new intake, but not sure if it's a must that it's a marine intake or not. Guess that's the preferred choice though. Boat runs exclusively in freshwater. This should be a match with the Gen V ...
  5. M

    Milkshake oil - 454 big block

    It's aluminium yes, weighs like 12lbs or something. It has the firing order stamped on in, so guessing it's the original one? I've had it for 4 years now, and the service and repairs I had two years ago was repairing some water leakage through one of the risers. The water passage there seems...
  6. M

    Milkshake oil - 454 big block

    I've measured both heads and none of them allows a 004 measure blade to go underneath the straight edge, the .002 went kind of underneath one place. Measured diagonally across the whole head and other places as well. The boat has been stored in a warm storage every winter, so I find it unlikely...
  7. M

    Milkshake oil - 454 big block

    Well it was just the first dipstick check, but surely it was in the crankcase aswell. I still think this water port in the intake just below the t-stat housing is suspicious, like it's dented somehow?
  8. M

    Milkshake oil - 454 big block

    Ah, got it! Yeah it's a dual plane intake. But if you then mean that there could be corrosion inside the intake which again leads to water leaking into heads etc, shouldnt there be rust in the intake channels aswell? I cant see any rust inside those on the intake (see previous pics). So far I...
  9. M

    Milkshake oil - 454 big block

    Thanks for the replies! Will check it out some more. Just wanted to double-check if I understood you right: When you mention "different planes on the intake" — do you mean that the intake manifold might not be seating properly due to a mismatch in angle or height between the cylinder heads...
  10. M

    Milkshake oil - 454 big block

    Yeah, and the hard part is figuring out if that rust is from earlier leaks or now. It was repaired 2 years ago for among other things water in engine/oil. So that rust could probably be from an older leak aswell? But the rusty color here around the cylinder heads, doesnt that tell us that water...
  11. M

    Milkshake oil - 454 big block

  12. M

    Milkshake oil - 454 big block

    Yeah, do you mean the part where it's a little bent and looks like som porous metal hole beside the water channel in the intake,?
  13. M

    Milkshake oil - 454 big block

    Maxum 2300sr 2000mod Bravo 3 drive, with a 454 7,4l Mercruiser carburetor big block (1996 I think). Pictures at bottom. I've discovered water in the oil. Yeah, real milkshake. I've pulled intake and heads but can't see anything too obvious. Looking for help to spot anything telling from the...
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