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  1. 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 …

  2. 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 …

  3. 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) …

  4. MerCruiser Forum - iboats Boating Forums

    MerCruiser Models Alpha I Bravo I Bravo II MerCruiser Alpha MerCruiser Bravo MerCruiser 3.0 MerCruiser 3.7 MerCruiser 4.3 MerCruiser 5.0 MerCruiser 5.7 MerCruiser 6.2 MerCruiser 120 …

  5. Mercruiser 470 Engine Spec and Mods - iboats Boating Forums

    Oct 2, 2006 · Re: Mercruiser 470 Engine Spec and Mods Most 470 owners are just happy if it keeps running It is a real bad pick for a HP motor Tommays

  6. Mercury MerCruiser Sterndrives & Engines - iboats Boating Forums

    Aug 7, 2009 · Mercury MerCruiser Sterndrives & Engines Sponsored by Quicksilver Propellers 1 2 3 … 4746 Next

  7. 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. …

  8. mercruiser 3.0 performance, pros and cons, what can I expect?

    Mar 11, 2014 · Re: mercruiser 3.0 performance, pros and cons, what can I expect? the 3.0 is a small motor. it is great for a light cruise, however if your looking for performance, I suspect you …

  9. 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 …

  10. Thermostat Temps for 4.3 ltr Merc V6... 140 or 160?

    Apr 15, 2011 · Whenever a Mercruiser engine equipped with a 143 deg stat is operated for long periods of time in cold water areas at very low rpms [such as when trolling] install a 160 deg …