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    1997 Hurricane 5.7gi how to service engine?

    Hello Hurricaners! I’m looking at a 1997 Hurricane deck boat that looks to be in excellent condition. I do all of my own boat service and repair. From the photos the engine appears to literally sit in a hole. I can’t see how to access anything like spark plugs, starter, oil filter, drain pecock...
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    5.7L rebuild and upgrade to vortec heads

    Right I know but I guess there isn’t really anything I can do about it.
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    5.7L rebuild and upgrade to vortec heads

    I put reconditioned heads on several years ago but they probably only have 300 hours on them. I expect the valves are ok. That glitter in the oil is telling me something somewhere is wearing. I guess just run her until she gives it up. Could be years, who knows. But I got my answer regarding...
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    5.7L rebuild and upgrade to vortec heads

    I’ll send a sample for analysis when I change the oil this Fall. I think factory compression is 150? My highest cylinder is 140. Lowest is 115. The others are right around 130.
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    5.7L rebuild and upgrade to vortec heads

    No salt water. Fresh water lake only.
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    5.7L rebuild and upgrade to vortec heads

    I hope you’re right about those hours. It is very well maintained. However I’m seeing some glitter in my oil when I change it. Don’t know if it’s crank bearings or cam. But something is wearing for sure.
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    5.7L rebuild and upgrade to vortec heads

    Any concerns about what year heads will fit? Any 5.7L vortec head will fit my 80’s block? Cast numbers aren’t important?
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    5.7L rebuild and upgrade to vortec heads

    Hi all The 1984 5.7L in our Dixie stern drive ski boat is closing in on 1150 hours. She still gets it’s done but I know if I keep her the day is coming for the inevitable rebuild. I’ve heard that a decent power gain can be found by upgrading to vortec heads. I’d like to get an education in...
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    Crank, no spark. Need advice.

    Yeah it’s not difficult. Had to do it a third time this Spring myself.
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    Power trim check valve?

    Ah yes, the cylinder seals may be leaking by. That is more probable. Thanks
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    Need advice from experienced people.

    I noticed water on my spark plugs years ago so figured my head gaskets were leaking on my 5.7L. When I pulled them i found cracks in both heads. Pistons looked fine. I found a shop with an eBay store that sold rebuilt heads and I shipped the old ones to them in exchange. It wasn’t too expensive...
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    Power trim check valve?

    Hi guys. Alpha 1 gen 1 outdrive. The drive creeps down fairly quickly and I continually have to bump it back up. It will actually creep down on the trailer just by gravity. Do I have a check valve in the hydraulic system bad?
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    Crank, no spark. Need advice.

    Could be the ignition sensor in the distributor. I’ve replaced mine 3 times in 14-15 years. Two of those times it just died with no spark.
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    Camshaft Replacement on Vortec 4.3L 262

    I’ve heard of people using a cam from a truck engine. You might consider that.
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    5.7L 1984, Rough idle at start up, then ok after a minute or so

    Ok here’s update. Jumper on the + to the coil no change. Jumper on - on the ignition ground wire no change. Disconnected all other wiring connections to the ignition system no change. Replaced the ignition sensor in the distributor and presto, problem solved! Took it out for the day and rode it...
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    5.7L 1984, Rough idle at start up, then ok after a minute or so

    Yes. I have the service manual for the Tbolt system and setting the timing has never been a problem.
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    5.7L 1984, Rough idle at start up, then ok after a minute or so

    I’ve got a Mercury Quick Silver 3 wire sensor on the way. I’ll also make some jumpers to ensure solid power connections, and disconnect everything possible to isolate any potential damaged wire. Hopefully I’ll finally solve this. I’ll post an update next week.
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    5.7L 1984, Rough idle at start up, then ok after a minute or so

    Iboats sells CDI and Sierra brand sensors.
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    5.7L 1984, Rough idle at start up, then ok after a minute or so

    I did disconnect the tach at the coil as you recommended. I’ll be sure to order the OE ignition sensor. I guess that would be Mercruiser?
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    5.7L 1984, Rough idle at start up, then ok after a minute or so

    I thought about that. I’ll add a ground jumper for the ignition module also to be sure the system has a solid power connection.
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