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  1. J

    Fuel Line Replacement Merc 3.0

    I changed the manifold on my 2005 Mercruiser and decided to use the included (new) fuel line. Call me an idiot, but this doesn't fit! And i can't seem to get it to fit! My first attempt at installation resulted in the shift arm hitting it while in reverse. Next i tried removing the top bolt...
  2. J

    Boat not starting

    OK, so I need some help, as my 2004 Mercruiser won't start. I've read the sticky on starting problems, and I'm getting no light (power) on this first step: "Now, touch the light to the B terminal on the ignition switch (big red or red/purple wire) the test light should light." Battery is...
  3. J

    All of the sudden low WOT (after hitting a wake)

    Went out this afternoon, and the boat ran perfectly on the way out, which is about 10 miles one way. On the way back (after traveling about 2 miles), we hit a small wake from another boat - which we slowed down as normal so none of us ended up with broken backs - the boat was surging and...
  4. J

    Power Steering Belt Removal Mercruiser 3.0

    I have to be mechanically dumb. Or maybe I'm getting old and losing my mind, because I know I've removed the power steering belt before to change the alternator belt. I will claim I haven't spent a whole lot of time on this though! I've loosened the power steering hinge, but I'm unable to...
  5. J

    No Start - Slave Solnoid?

    Changed the oil this afternoon, and took the plugs out to have look. When i was changing the first plug, i got spark (at the plug) that i thought was kind of odd. Finished everything up, and went to give it start and i got nothing (not even a click). I tested for volts up at the ignition, and...
  6. J

    Side Windshields

    Not sure exactly what forum this belongs in, although stupid human tricks is certainly a thought. I broke the two side windshields (and bent up the top frame on both sides) on my 2005 Mariah 18sx , and now I need to find somewhere for replacements. The top frames might be able to be bent back...
  7. J

    Low RPM Range with new prop

    Threw on a new SS prop, and I'm running right at (or 10-20 rmps below) 4400 which is the low end -as the motor says 4400-4800. At full throttle I'm trimming up (nothing out of the ordinary), and it takes about 10 seconds to get there. I typically run 3/4 throttle (3500-3900) when we go out...
  8. J

    Slow and No Starting

    Got a Mercruiser 3.0L (2004), and just changed the manifolds and riser. Everything looked fine, and noticed nothing out of the ordinary. Started her up yesterday (it took a few cranks as has been the case when cold) four different times throughout the day to make sure everything was ok...
  9. J

    Fuel Line

    As predicted, the worst part of this manifold job was carb, or the fuel line. The steel fuel line that came with the manifold literally rests up against the shift pivots. This means that the fuel line is pushed when put in reverse, which means at some point it is going to break. Ok, call me...
  10. J

    Carb mounting screws on manifold

    OK, so how do I remove these 4 studs/screws on the manifold to hold the carburator? New manifold didn't come with new ones, and i can't even find the part number (2004 mercruiser 3.0L 0W03140). So how do get these out to re-use?
  11. J

    Replacing Manifold and Riser Elbow

    OK, I've done the work on my 2005 mercruiser 3.0 for the last 4 years that I've owned the boat. It's now come time to replace the exhaust manifold and riser (I'm in salt water). I've seen a couple youtubes on replacing the manifold and riser, but those were for a v-8 and volvo. The theory is...
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