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  1. Merc 7.4L (454) MPI Fuel Pressure - iboats Boating Forums

    Feb 6, 2008 · Anyone know what the factory fuel pressure setting is on a 2001 Mercruiser 7.4L MPI at the fuel rail Schrader valve? I'm trying to diagnose a possible faulty (or clogged) …

  2. what is a mercruiser 188 - iboats Boating Forums

    Sep 26, 2013 · Re: what is a mercruiser 188 ^^^ Sir, you are confused. You're thinking of the mercruiser 470, 170, 180 series engines, the big 3.7 liter 4-cylinder. It does have all the …

  3. Replacing Exhaust Manifold and Riser on 3.0L - Tips Needed

    Aug 19, 2016 · The time has come to do some preventative maintenance and i'm planning on changing out the Exhaust Manifold and Riser on my 3.0L Mercruiser. The engine is a...

  4. Mercruiser trim/tilt wiring - iboats Boating Forums

    Aug 22, 2010 · Re: Mercruiser trim/tilt wiring For the trim limit switch, look for connectors with a purple/white wire and two blue/white wires. Polarity is not important. Adjust the TL switch to …

  5. Steering play | Boating Forum - iboats Boating Forums

    Sep 28, 2010 · Re: Steering play To fix it will require figuring out where the slop is first. Get 2 people 1 holds the steering wheel still 1 moves the outdrive back and forth You check …

  6. Oil leaking our of "weep hole" in Alpha 1 lower unit.

    Jun 14, 2017 · I replaced the water pump assembly in the lower unit of my MerCruiser Alpha 1 sterndrive. The boat was running too warm so I decided to investigate and found the water …

  7. Mercury MerCruiser Sterndrives & Engines - iboats Boating Forums

    Aug 7, 2009 · Mercury MerCruiser Sterndrives & Engines Sponsored by Quicksilver Propellers 1 2 3 … 4747 Next

  8. Installing A 90 Amp Fuse - iboats Boating Forums

    Aug 14, 2008 · The 90 amp fuse on the starter of my Mercruiser 5.0 needs to be replaced (my screw up :redface: ). Due to the configuration of my boat (Nautic Star 232 DC), this fuse is …

  9. 3.0L 4 cyl. mercruiser, cranks but won't start - no spark?

    May 27, 2013 · Re: 3.0L 4 cyl. mercruiser, cranks but won't start - no spark? Puts some points and condenser in it. They tend to glaze over while setting for long periods of time after use. …

  10. mercruiser alternator questions - iboats Boating Forums

    May 8, 2011 · Re: mercruiser alternator questions Howdy, Well, After you check all the engine ground and positive connections, you might remove your alternator and drop on over to …