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    Bravo 3 can you change gear oil line without removing lower unit?

    It can be done with everything in place but it's not fun or easy As mentioned a majority of the through transom fittings for the lube line are plastic and will break if not removed properly Seeing as how the lube line has failed I'm guessing the other rubber/maintenance items in the transom...
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    2010 4.3L TKS Thunderbolt Ignition Troubleshooting

    Possible, not probable. Is the sensor oem or aftermarket? Is the new sensor grounded properly? Another thing to check is the shift interrupt switch. Not often a cause of no/intermittent spark but worth checking as it does affect the ignition system
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    Trailer Question - want to drill a new hole into the frame to move crossbar supporting wobble roller

    I would move the winch stand first and see if the boat fits. Middle of aft rollers should be flush with the transom chine I think if you move the crossbar forward the rig would be too tongue light If it were my trailer I'd convert it to bunks. Roller trailers are too much hassle
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    496 bravo 3 3000 RPM plus overheat

    I like this. Shows a frustrating issue that can be difficult to troubleshoot properly Raw water cooling system blockages are real and annoying.
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    1989 Supra TS6M 5.8 overheating exhaust

    The boat most likely has at least one muffler, at least oem Have you verified the complete exhaust system?
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    Cylinders wont fire.

    What were the compression numbers on the other cylinders?
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    The ole rope in the prop

    No start or no crank/turn over?
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    496 bravo 3 3000 RPM plus overheat

    Bell housing off yes, gimbal ring no. Through transom barb fitting/passage hose can be replaced with the ring still in place. Really helps to remove the power steering actuator to access the bilge side of the transom assembly ime
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    Crack in splash well

    Looks like old, failing silicone/sealant
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    Blown 20A Fuse on Mercruiser 5.0

    Little chance under normal operation with a sound system for the fuse to blow using both batteries. If one battery happens to have one or.more bad cells its possible I guess. Heavy corrosion can cause strange issues as well. Load test each battery individually and static, only way to know...
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    350 Mag Mpi hard to start when warm or hot

    Best to use a diagnostic tool and check for faults and monitor data list items. WAG without diagnostic info would be overheating iac or issue with map sensor
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    Canvas snap for windshield

    Frame doesn't appear to be able to accept a clip on snap, no groove/shouldered area for the clip Like bondo suggests, drill and attach snaps Guessing the cover currently goes over the windshield, snaps to the hull/deck?
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    Blown 20A Fuse on Mercruiser 5.0

    Yes, usually. Not always, especially with accessories Engine manufacturers will almost always have the output red wire from a fuse with a purple tracer indicating it is fused main power, usually for the key switch Both wires appear to be solid red. Looks like the one side goes into a romex...
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    Blown 20A Fuse on Mercruiser 5.0

    What color wires are connected to the fuse receptacle? All fuses are failsafe fuses
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    Automatic bilge pump brands using non-mechanical sensing?

    Pretty much my go to replacement bilge pump for all applications Nice, compact, fully integrated float switch design. Easy to install in most bilge areas. Available from 500, 750 and 1100 gph. Starting to see the attwood sahara model bilge pump oem from boat manufacturers, sump boxes too
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    No Crank - No Start on New Engine Swap First Startup

    Your troubleshooting by passed a few steps. You started investigating at the starter and starter realy, got it to turn over. Then you completely skipped all other components of the starter circuit and went to the exact opposite end and replaced the key switch to no avail Broad strokes I'm...
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    Hot rod/mods

    Most people seeking info here own a regular boat. Naturally aspirated, oem stock eninges/running gear In order to properly maintain a boat like this is very expensive for most passively passionate boaters (which is about 98% of boaters) To properly modify a boat engine for maximum performance...
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    Help ID aftermarket sterndrive

    Mercury usually puts the s/n on the metal tab seen in the third pic Remove the two drive mounting nuts and the torx head screw. Maybe someone turned it around?
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    Shore Power Only?

    Did you even read the two replies to your original post? The converter is the on board, hard wired battery charger that is pictured in your post Spoon feed: the converter, i.e. alternating current converter uses alternating current (input from shore power) and converts the alternating current...
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    Diacom engine parameters

    555 ought to display engine hours under the data tab using diacom
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