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    5.0 MPI Bravo 3 Trim issue

    Was out today on the 2002 Sea Ray 240 Sundeck, has a 5.0 MPI and a bravo 3 outdrive. Most of today was problem free, but toward the end of the day, when performing the normal trim up once on plane to smooth things out, the RPM jumped from 3000-3200 to 3200-3500, the engine made a deep pulling...
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    Louvered breather direction

    Which direction should the breather vents on either side of the engine compartment face? It makes sense for them to open aftward, as it would keep splash and/or rain from entering, but would it create air pressure/flow problems at higher speeds (around 50-60 mph)? Or am I way over thinking this?
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    '90 5.7 Takeoff

    Thanks to help and a lot of info found here, I brought my 1990 5.7 cobra back to life after a 10 year nap. It runs great, and being a lot of motor on a 20' boat it goes pretty fast, and takes off quick. If I jump on it too hard though it hesitates for a little and occasionally backfires through...
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    Idiocracy at the launch

    At the ramp the other day to get my boat off of a borrowed trailer onto it's proper trailer (no small task by yourself: leave empty trailer at the park, bring boat, launch boat, tie to dock, park and unhitched trailer, hitch first trailer...). Anyway, this was a Tuesday, a relatively slow boat...
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    Shift Actuator vs ESA switch

    1990 Cobra 5.7L shifts very smoothly and easily into gear in our out of water, and out of gear easily only out of the water. Checked the esa switch and it stumbles the engine, so that doesnt work. Watched the actuator (I think that's its name, the part with the little notches on it that hits...
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    Fast at idle speed

    Got my boat in the water for the first time since I've had it. I've been in the boat in the past and it reaches WOT at full speed, so that's all how it should be. Top speed is around 55. But at idle, it is fast! Like 6-7 mph. 5.7l omc cobra, Idle is set at 600 drops to 500 when it's in gear...
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    Rebunking

    Rebunking a trailer for a 1990 Phantom, and its a bit different than newer trailers I've worked on. The bunks are bolted directly to mounting points welded to the frame at the correct angle and height. The bolts are carriage bolts that go through the wood, and then covered by carpet. It has 2...
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    Trailer Wiring Diagram

    Anybody have a link for a basic wiring diagram for a boat trailer? Trying to fix some jury rigged wiring on an old trailer and need something to go by. The trailer has one amber light on either side, brake light/tail light combos, and a light bar in the middle of the back. Also, its a 4 pin...
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    Floor repair

    Floor in the 1990 phantom is rock solid, except for about a 1' square section under the passenger chair. How would I go about fixing this spot, it's not completely rotted, just a little soft. Can I cut out this square, replace it with a new one and carpet over it?
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    Tach problem

    Tach works fine at idle and up to 1200-1500, but when I rev up to 2000-3000 (judging by sound) it sits at around 1200, moving just barely with more rpm's. Also, last time it started it worked fine, removed the carb and rebuilt it, and had the out drive and components checked out, and now it does...
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    Possible for too much oil pressure?

    My 1990 5.7L runs about 60 psi on the gauge when cold idling, only drops to around 50 when warm. With increased rpm it'll go up to 70. It has Rotella 15w-40 in it, but the engine is fairly new, 119 hours. Is there such a thing as too much pressure? I'd rather have high pressure than low...
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    Throttle body idle foam

    Anybody know where I can find the little foam pieces that go into the throttle body/idle air intake? Replaced the IAC valve and found one melted and the other pretty dirty.
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    Exhaust bellows necessary??

    My 5.7l with cobra drive runs the exhaust straight out of dual pipes in the back. Is the exhaust bellows on the drive necessary? Also would taking it off make any difference, good or bad, on performance or maintenance?
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    Equalizer by Phantom

    I just got a 1990 Equalizer by Phantom 201. It has a 5.7L OMC engine and drive, with a big holley 4 barrel (not stock), and some kind of high performance intake manifold. I've found plenty of information about the engine and drive, but there is nothing out there about the boat itself. What...
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    5.7 exhaust manifold cooling

    My 5.7 has two thru hull exhaust pipes, so the manifolds never meet each other. When the engine is running, water only comes from the port side exhaust pipe, not the starboard. I haven't let it run long enough to bring it to operating temperature but should water come from both exhausts all the...
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    Holley inlet fitting leak

    Gushing leak out of the inlet line to the secondary side of the carb when I started up. Swapped the brass fitting for the line from back to front, and same problem there. What would cause the problem with that fitting to cause such a leak? I'm talking about the brass looking fitting that screws...
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    Revival Project: 1990 OMC 5.7

    I've recently acquired a 1990 Phantom boat with a 5.7 OMC, 4bbl Holley, and straight thru-hull exhaust. It's been sitting on the dock untouched, not started, for at least 10 years, and was only run a couple times a season prior to that. It has 119 hours in 22 years. Naturally, my first step...
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