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    Prop hub slip? '95 Maxum 4.3 L Mercruiser Alpha 1 Gen 2

    Boat has been running strong this year. In the water yesterday for about an hour, stopped to troll for a while. When powering back up to get on plane it goes nowhere. I reduced power to idle and tried again, moved slowly. Tried again after 30 seconds or so and gently got it back up on plane...
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    1995 Mercruiser 4.3

    Last evening, first time in the water this season, boat is running fine. About an hour later, it starts to sputter, sounding like it is starving for fuel, will only run from just above idle to 1/4 throttle. I had a problem like this in previous years but it was the anti-siphon valve causing...
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    Outdrive leaking lube form weap hole

    I have a 1995 4.3 Mercruiser Alpha 1 Gen 2 outdrive. I replaced the impeller and quad seal 2 years ago and all has worked well. I was prepping the boat last fall for storage and noticed that there was gear lube leaking out one of the weep holes. It had been very cold that night, 30 degrees or...
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    1995 mercruiser 4.3 starving for fuel

    First trip to the river this year didn't go so well. Prepped the boat for the season as usual, test ran in the driveway on muffs for about 15 minutes, all was fine. after about 10 minutes of running fine at 3000 rpm, typical cruise, the engine starts popping, backfiring, and finally stalls...
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    Anyone else tow with a Pontiac Torrent?

    Up until this year, I towed our 19 1/2 foot I/O with my 4.7 L Durango. The Durango was my work beater until I changed jobs and needed an economy car to commute. I set up my wife's 2008 Pontiac Torrent, AWD 3.4 L, to tow the boat. Installed a Curtis Class III on the factory mounting points...
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    More pitch for economy

    I have a 20 foot Maxum with a 4.3 Mercruiser. I am currently using a 21 pitch x 15.25 diameter. It tops out at 4700-4800 rpm at around 48 mph. We usually just "slow cruise", 27 - 30 mph at 2800-2900 rpm. I'm thinking about trying a 23 pitch x 14.25 diameter for better economy. Rough...
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    Looking for a short block

    We were boating Sunday and when we were returning to the launch I ran our 4.3 Mercruiser up to about 4300 rpm. It was running fine until the motor started a wrapping noise. I took it to the mechanic and he says it sounds like it spun a bearing. It still has oil pressure but it's noisy. He is...
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    Bad day on the river

    I have a 1995 Mercruiser Gen II 4.3LX. I was prepping the boat yesterday for it's initial use today. I was changing the thermostat and broke the spacer sleeve so I decided to run today without the thermostat installed. Everything was running fine, around 100 degrees on the temp guage. After...
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    Re-installing outdrive

    We bought our boat last year and it worked fine (Mercruiser GenII 4.3LX). I figured I would do the annual maintenance routine before using it this year. Pulled the outdrive and it came off with almost no effort. Gimbal looks and turns like new. U-joints also look new. Alignment is good, bar...
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    Alpha 1 Gen II Serial Number

    I bought our boat last year and it has worked well but I want to replace the impeller before we start boating this season. I have downloaded the Sterndrive #14 manual from the Adult section and followed the instructions to find the serial no. I have removed the decal and scraped a lot of...
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    48" Boat Guides

    I am thinking about buying the 48 inch boat guides available here at Iboats (I like to patronize the site since they give us so much good info!). I have a 20 foot Maxum I/O. Are these guides heavy enough to use with a boat this size? Specs say they are 2 3/8" PVC.
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    AFB Carter/Weber choke problem?

    I have a 1995 Mercruiser 4.3 LX 205 hp with the Y43 AFB Carter/Weber 4bbl carb. The boat runs great after it warms up but it pops and sputters (fuel starvation?) the first few minutes of operation. I have checked the front choke plates and they have about 1/8" of play. The previous owner...
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    Electrical / Instrumentation Problem ??

    We bought our boat last summer, a used Maxxum with a 4.3 Mercruiser Gen II drive. The boat runs great but I noticed after a few trips that the volt meter was dropping down to around 10 volts. I checked the battery when I got home and it was 13.5 - 13.8 volts. I also found that by running the...
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    Changing from regular to hi-perf gear oil

    I have been using the standard "caramel color" gear lube in my outdrive. I want to switch to the blue-green hi performance lube. Do I need to "rinse" the drive when making the switch? Can I use kerosene or something similar to rinse instead of the $13 a quart hi-perf oil?
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    Winterized Mercruiser today

    I prepped my Mercruiser for winter storage today. All went well except for one thing. I had it on the cuffs warming up for the oil change. The engine was purring along at 1200 rpm and I checked out the stern drive to make sure the cuffs were feeding water as they should. The water was coming...
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    Winterizing 4.3 merc Alpha II this weekend

    I am prepping my boat for storage this weekend. Anyone know what size o ring seals I need for the outdrive drain screws? Want to get them before I start on Saturday.
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    Trim pump question

    Had my 4.3 Alpha I Gen II at the shop for a pressure test about a month ago. When I pressed the trailer switch to raise the unit, the trim relay clicked with no tilt movement. The second time it worked fine and has worked ever since. The mechanic said I may want to replace the trim relays...
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    Cold weather question

    We just bought our boat this year. 20 foot cuddy with a Mercruiser 4.3lx and it runs great. We live in western Pa and use the boat on the Allegheny river. We usually get some nice weather (and autumn leaves) until mid to late October and would like to use the boat until then. We start...
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    Alpha 1 Gen II question

    What is the small hole (1/8 - 3/16" dia) for on the leading edge of the outdrive about 6" above the prop shaft housing just below the cav plate. Just curious.
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