Recent content by NFA

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    Chevy Vortec / 5.7, idling down issue

    Hey everyone, I have a Chevy Vortec 5.7 with a jet pump on a 21' Thunderjet. Engine fires and runs great. My problem is sometimes the engine doesn't idle down all the way. Regular idle is around 700-800RPM , but sometimes it'll stay around 1000-1100RPM. I have to open it up again and run...
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    Jet in salt chuck

    I have a 21' Thunderjet with an American Turbine 309 on the back. I plan on taking it to our cabin a few times a year. I know about salt and corrosion, but is there anything in the market I can get to prevent any salt water corrosion? Am I okay to go in the chuck for a couple of days and just...
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    150 Optimax continuous intermittent beeps

    Hey everyone, got an issue with my Opti. Here's the lowdown... Mercury Optimax V6, 150, DFI, late 90s model. Last fall it started to beep as soon as I would turn it on. Had it looked at, mechanic said the #5 injector wasn't firing, loose connections, etc etc. He fixed it apparently. Took it...
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    Starter question w/ pics, 150 Optimax

    Hey everyone, I'm pretty sure my starter is shot, just wondering if anyone has a model number for it? The starter sounds terrible and weak. It's struggling to push up the top cylinder to spin the flywheel. Batteries are full and all other systems are good. The motor runs great when it's on...
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    Leaking?

    Hey everyone, I just noticed I have some fluid either oil or other, lining the underside of the engine, and it's also run down the inside of the leg. Not sure exactly what it is. Background; 150 Optimax Last week I left the engine in the up position for a couple days and when I went to lower...
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    Optimax 150 Alarm beep question

    Hey everyone, I was going to run the engine one last time before putting it away tonight. I went to fire it up, turned over just fine, but as soon as I turned the key past the choke (one beep), and turned the engine over, it started to beep intermittently as long as the engine was running. The...
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    Used Engine Question (25 Nissan)

    Hey guys, just picked up this engine. It's my father-in-laws and I'm hoping to get it running, fix it up, the usual up-keep. But I need some info on it first. I've attached a couple pictures of the tags. Any info such as 2 or 4-stroke, best type of gas, oil/gas mixture, best plugs, etc etc...
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    Engine Oil question (150 Opti)

    I have a 150 Optimax DFI. I've been running it on Quiksilver DFI oil. A gallon of this costs $80 in Canada. Is there anywhere online that sells it for cheaper? Do any of you deal with any online sites for this oil? Thanks; SSS
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    150 Optimax starting question

    It's an Optimax 150, V6. This is my third season with the engine and it's been an absolute beauty to run and enjoy. Had it out for the weekend up at our cabin on the ocean, during this time it sits in the water the entire stay. Typically when I start the engine, I twist the key a half turn...
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    US Marine Force 50 (thoughts)

    Hey everyone, a buddy of mine is looking at this engine... http://vancouver.en.craigslist.ca/rds/boa/2994243771.html Currently, he's got a 15hp on the back of his 16' fibreglass closed hull boat. Obviously he's looking for a bit more power. I don't know much about this particular engine, but...
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    Boat paint job

    Anyone have any idea what I'm looking at to get my boat completely repainted...just the outside hull, etc. It's full of scratches and scrapes and the colour is completely faded. I absolutely love the boat, runs fantastic, I just think it's time to give it some paint love. I'm in Vancouver...
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    Corrosion Question

    Hey guys, wondering what some of the best methods or materials are to avoid any type of corrosion on electrical? I'm talking about terminal connections, simple audio wires and their connectors, etc etc. I just put a new AC adaptor into the boat because the old one was rusted to all hell, and...
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    New Prop Question

    Hey guys, I've been reading this forum quite a bit the last few months with plans of upgrading my prop for the upcoming summer. My current boat has a Mercury Optimax 150HP sitting on an 18' Maxum bowrider. My original prop was an aluminum 14.25 x 17. I use the boat mainly for cruising and...
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    Prop Question (150 Optimax)

    Hey guys, I'm thinking of upgrading the prop on my set-up for the upcoming season. I have a Mercury 150 Optimax on an 18' Maxum, bowrider. I mainly use the boat for cruising, with some water-skiing and pulling, but most of the time is spent getting from point A to B. I have the stock prop on...
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    150 Optimax (cough / sputtering problem)

    Here's one for you guys, hopefully you can help me out. Last season I refurbished my boat (18ft Maxum bowrider) with the 150 Optimax V6, oil injected, late 90s model. Has run beautifully the past two season. A couple weeks ago while having it at idle for approximately 7-10 minutes, once I...
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