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    Marine Engine Depot

    I think ilmore is using ls/lt blocks for their motors They had a pretty cool 7.4L at one point. I've asked a friend/coworker about it numerous times and for some reason the info doesn't sink in Does my mind have some type of obstacle that doesn't allow me to learn engine...
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    Limp mode

    Need to check diagnostic for fault codes. Otherwise it's just a guess and the parts cannon is lacking ammo rn
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    Deep Cycle battery polarity issues (24v)

    Is your trickle charger a two bank with batteries connected individually and charger on the proper setting for the type of batteries?
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    Close on the formula

    A few years back I purchased a 1982 Ford econoline club wagon. 2wd with a 351 windsor. 38k miles original, nice rig Only major issue I noted was at times it would puke oil out the rms. 2 piece rms being roughly 40 years old. I know what to do now One summer I decided to pull the motor and give...
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    VP 4.3GS Carb Tuning Vacuum Port?

    There should be a 3/4 pipe plug in the intake aft of the carburetor that when removed will give a large vacuum leak. Rig up as necessary the proper plug/barb to attach a vacuum gauge What is it you're troubleshooting here?
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    Close on the formula

    You guys ever drink orange juice immediately after brushing your teeth? Yuck
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    1977 140 carb replacement

    You can rebuild your current carburetor if the housings are in good shape, no corrosion
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    Bellows Kit for an Alpha One Gen Two?

    I piecemeal the parts. There's no kit oem or aftermarket that I know of that includes every component for a proper full bellows job I replace the lower shift cable (complete kit), trim senders and all the bellows/rubber at once. This way everything maintenance wise is new/oem Mercury...
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    My boat run slowly. 120HP,2.5L,1989

    Pick one end of the fuel system. Either carburetor or fuel fill/vent system Start at the chosen end and begin inspection of components and fuel present. Continue towards the other end with proper inspection until the problem is located. Repair as necessary
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    Volvo Penta 3.0 stalling issues

    Sat for many years, like more than 5? It's good you removed the old fuel. Guessing there is remnants of old fuel stuck around in the tank and it's now come loose and is clogging the fuel supply system possibly up to the carburetor Inspect the tank, look for dark areas/debris or other stuff...
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    VP 4.3GS Carb Tuning Vacuum Port?

    Marine engines don't rely on vacuum references for fuel supply/ignition advance like an automotive application I have a plug/barb kit that I install in the intake when a vacuum reading is appropo for diagnosis With the pcv valve hose you may stab a barb fitting into the end and attach a vacuum...
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    My boat run slowly. 120HP,2.5L,1989

    Not very easily over the internet Best advice I can provide is to start at one end of the fuel supply and work the opposite direction until the problem is located
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    My boat run slowly. 120HP,2.5L,1989

    With the ignition system now sound I would investigate fuel supply
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    Showing the Boston Whaler 13 some TLC . . .

    Any chance of this behavior in your whaler's future?
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    Removing steering cable

    You need to allow the cable end to be fully retracted by turning the wheel hard to port. Sometimes the radius of the cable end makes it difficult to remove the cable easily, it really depends on the boat design and how much room is between the actuator cable mount and the hull/gunwhale On few...
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    Needle in a haystack

    1000 miles from you
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    Marine Engine Depot

    Pretty sure diacom with the most recent update will communicate with mefi 7. Can verify later I think marine power engines have used mefi 6&7 in recent years
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    Close on the formula

    Good to know. It does have a mechanical pump with the sight glass on the side, no tygon hose to the carb It is a 12 bolt intake so yep, non vortec. I'm guessing this long block assembly vintage is in between the og 2 piece rms and vortec? 260 crank horsepower? It does scoot on step I will...
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    Removing trim senders screws

    Ime with a stuck sender mounting screw one will come out easy and the other will break off I've had some success by backing out a stuck screw a half a turn then re tightening it multiple times. Kinda slow but works 50/50 No worries on a broken screw, just drill and tap a new hole like others...
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    help, new fuel pumps and pressure still below specs 2004 5.7 MPI

    Thanks for the write up FT. Nice explanation Not seeing in person what setup/testing procedures is a damper. I was thinking with the vacuum line blocked the regulator is now out of the system essentially thus the pump ought to be unlimited for pressure, like 60 + psi. Sounds as though the...
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