Recent content by m_gdavis

  1. M

    Intake Manafold

    I received the gaskets I need to replace my head gasket on my 99 mercruiser 5.7l carbarated engine. I have a couple of questions: Does the Intake manafold gaskets go on dry? Without any gasket sealer? Also there was some kind of silicone between the Intake manafold and block. It was a fairly...
  2. M

    Vacuum Lines

    I have a 1999 mercruiser 5.7l carb model with a bravo III. (Thrunderbold 5 ignition) I have been looking through my manual and can't find anything about timing advance due to vacuum. Unfortunatly my boat is 200 miles away so I can't go look at it. Are there vacuum lines on this motor? If so...
  3. M

    Mechanical Noise around 3000 RPM

    A couple of weeks ago my boat (1999 5.7l carberated bravo 3 mercruiser)started to make a mechanical noise after 3000 RPM. The boat would not go any faster. If I backed it down a little it sounded great. Last weekend I replaced the distributor, rotor and fuel filter. The boat ran worse and...
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