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  1. M

    Loss of power at speed

    Been at the lake for nearly 3 weeks and boat has been running normally and reliably. Today before taking kids for a ski was running across the lake and the engine would lose power and rev. Or when I pushed throttle it would sound lime it does when cavitating. I quickly headed back to the dock...
  2. M

    3.0L Mercruiser I/O no thrust, engine revving smoothly

    Took our Bayliner 175 with a 2005 Mercruiser 3.0 L I/O to the lake for the first run of the year after spring commissioning a few weeks ago. After embarassingly realizing it wasn't starting because I didn't tighten the battery nuts, the boat started up and we cruised smoothly away from the dock...
  3. M

    Mercruiser 3.0 (2005) - Bayliner 175 - Sheared bolt head found in bilge - HELP!

    2005 - Bayliner 175 w/ Mercruiser 3.0 I/O. On annual family vacation to lake in BC's interior. During pre-trip check, found this (see pics) bolt head in the bilge. After a couple hours feeling my way around and using a GoPro and iPhone, couldn't find where it came from. I'm hoping someone will...
  4. M

    Cockpit cover for 2005 Bayliner 175

    I am thinking about making my own cockpit cover for our 2005 Bayliner 175. We use the boat for a solid 2.5 weeks at a cottage, where the boat lives on a buoy and then for the rest of the year it occupies the carport, so it's well protected from the weather. The boat came with a bow cover, but we...
  5. M

    Bimini top question

    I have a 2005 Bayliner 175 with the standard 3.0L Mercruiser I/O. The boat came with a bow cover and a tall bimini that fastens to the windshield and goes up to 46 inches just behind the middle of the seats (standard front back type). It would make a great front for a full cabin type enclosure...
  6. M

    Merc 3.0 - Temperature and Audio Sending Units

    Re: Merc 3.0 - Temperature and Audio Sending Units Don - here are two pictures from tonight (just realized I didn't pull the wires - can do in the am). Not much light out there now, so if these don`t show enough I`ll take fresh pics tomorrow with daylight. Do you know about that third fitting...
  7. M

    Merc 3.0 - Temperature and Audio Sending Units

    2005 Mercruiser 3.0, Alpha Drive. Just finished replacing the rocker cover gasket and removed the Water Temperature (audio) and Water Temperature Sending unit wires from front of thermostat housing, but failed to tag them. Without taking each out and breaking the seals etc., is there an easy...
  8. M

    Starter (slave) solenoid - fouling

    Key Data: 2005 Mercruiser 3.0L with Alpha drive in Bayliner 175. Failed starting or slave solenoid (OEM # 89-96054T). Last season I replaced the slave solenoid on my engine and my starting problems went away. This season after doing some major engine work (cracked head :( ), I was excited to...
  9. M

    Need/Want a spare prop - can't make out what I have now

    Boat = Bayliner 175 (2005), with the standard mercruiser 3.0L power package. I want to purchase a new/spare prop and noticed one post about getting one 2 degrees lower for those watersports days. Question 1 - does the expertise here agree with that idea? Question 2 - I can't make out what...
  10. M

    Mercruiser 3.0 - Water in oil - troubleshoot?

    My boat is 2005 Bayliner 175, with a 3.0 Mercruiser I/O set up (Factory standard), with relatively low hours, but unknown due to no hour meter. I would estimate in the 200 hour range. We have had the boat for 3 years and last summer, mid season after 2 weeks of daily use (July) and then a few...
  11. M

    2005 Karavan Trailer - Can I add brakes?

    I have a 2005 Karavan single axle trailer for my Bayliner 175. I am towing with my Sienna van and while I'm under the towing capacity, it is heavy and difficult to brake. I want to do some longer road trips including going through some big mountain passes (for those of you who are familiar with...
  12. M

    Tachometer frozen at 1200 - 2005 Bayliner 175

    I just bought a 2005 Bayliner 175 with a Mercruiser 3.0 L I/O drive and the tachometer is frozen at 1200 RPM. I removed it, checked the connections and reinstalled it but no change. Any suggestions or do I just buy a new one? If a new tach is the only option, where can I find one that...
  13. M

    Mercruiser 3.0 - Leaking cooling water with significant pressure

    Engine Information: - 2005 Mercruiser 3.0L, 135 hp, Alpha 1 drive, SN# OW304..., raw water cooling system I just purchased the boat and was testing in my driveway with muffs on today and noticed small amounts of water leaking from the front of the engine near the top. I believe this is the...
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