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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. 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 …

  4. 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 …

  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. 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 …

  8. 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 …

  9. How to winterize closed cooling system engine - iboats Boating …

    Oct 2, 2012 · Hello, I would like to winterize 7.4 L Mercruiser engine (1997 Mercruiser 7.4 L 8 cylinder) with closed cooling system. By reading various threads on the forum, I would like to …

  10. mercruiser 190 | Boating Forum - iboats Boating Forums

    Apr 15, 2010 · Re: mercruiser 190 I had a 3.7l 170 in a 17ft Baretta and it was a fun boat. I hit 43 on the GPS with a 21p prop with me and my two boys (700lbs) plus a cooler full of pop and it …