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    Bravo 3 lower unit blown seals and corrosion

    Maybe oem but that could have changed Got it, your relief valve failed. Just saying I've personally never seen one fail, and I've seen a lot of monitor caps. I've found gaskets for the cap in the bilge more times than I care to remember, clean up isn't much fun. Wanted to let OP know there is a...
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    Dead injector?

    Got it, missed that part #5 and #6 fire with separate circuits so driver/ecm issue isn't likely. Could be wiring, continuity test would show an issue if that's the case. If all checks out next step would be remove and test suspect injectors individually. Sitting for three years could have...
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    Bravo 3 lower unit blown seals and corrosion

    Replace carrier assy, may or may not come with a prop shaft seal and o ring. Replace inner shaft seal as well. No need to worry about gear lash as long as the gears and bearings are being reused. Definitely need to remove both prop shafts and clean/inspect seal areas. Never seen a relief valve...
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    Merc 350 sputters, dies, won't restart after heating up

    1. Never seen a fuel tank "sock" but most tank pickups have a filter/screen which could be clogged/clogging 2. Not likely 3. Possible, but usually cps works or doesn't. Test would be to check for rpm signal when cranking during no start. One test, as mentioned about fuel tank vent would be to...
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    Dead injector?

    Fully aware the 7.4 mpi mefi controlled engine uses batch fire. I'm not suggesting pulling injector leads for the test but pulling plug wires from the cap which I know works and have used many times to isolate issues on these motors
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    3.0 Mercruiser Choking

    I'm with this. Need to establish a baseline here. Tune up performed? Fuel filters inspected/replaced? Fuel pressure/vacuum? So many culprits could be associated with your issue, need to start eliminating them one by one
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    Dead injector?

    Do a cylinder drop test to confirm issues with suspect cylinders. Then you can try an injector swap as suggested
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    Mercruiser 3.0 TKI engine crank half time - never starts

    Understood. At this point you're best off to start a new thread on the electrical/electronics forum page. Post pictures of your current setup and ask questions as to a proper setup for your batteries and any other electrical/electronic issues you are having. Ive tried to be as clear/concise as...
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    Miss firing Merc 7.4 mpi L29 2000 2855 Ciera SB

    A continuity test on all related wires/leads/connectors for injectors to ecm based on the wiring diagram posted is what I would do....
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    92 Mercruiser 3.0 alpha one gen 2 shift shaft oil seal keeps leaking

    Time to get a mercury/quicksilver brand assy
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    92 Mercruiser 3.0 alpha one gen 2 shift shaft oil seal keeps leaking

    Are you purchasing oem or aftermarket seal assemblies?
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    2003 Fourwinns 180 freedom 3.0 sx outdrive.

    The plug is the seal, remove the old clip to remove the old plug/wires. Clean any corrosion from the plug seat and spray a light amount of power tune when installing the new plug. Up to you to reinstall the clip with the new plug, I personally do not reuse the clip, ymmv
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    Mercruiser 3.0 TKI engine crank half time - never starts

    I don't have a "set up" and I don't own a boat. Just work on enough of them to know what works, what is prone to failure, what is acceptable for manufacturers and coast guard regulations. If you can't picture in your mind based on my description then this forum may not be proper for you to...
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    Volvo Penta 3.0 GLP Stalling when reducing from high RPM.

    And that's perfectly fine, it worked for you and are happy to share insight. That's what this forum is about. I'm just suggesting that OP needs to be pragmatic about their situation and a carb rebuild is not the first thing that comes to an experienced mind when looking at the given information
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    '87 MerCruiser 3.0 stalls when backing off throttle

    Its fine you can draw fuel out of the tank with a hand vacuum pump. Makes no difference if it's easier than your friends boat, we're talking about your boat. Vacuum test on the fuel system needs to be performed with the engine running, this tells you what the pump is drawing and can draw. You...
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    Volvo Penta 3.0 GLP Stalling when reducing from high RPM.

    Possible it's fuel related however you make no mention of recent tune up/fuel filter replacement Not sure why but lately on this site when someone posts a runability issue the first response seems to be "rebuild the carb" My suggestion is to start with routine maintenance items such as tune up...
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    Volvo Penta | Holley Carb Leak - Fuel Line Connection

    Sierra sells flexible pressure rated fuel lines with flared fittings at both ends. Two different lengths available. Plug and play As stated, order carb parts direct from Holley
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    2003 Fourwinns 180 freedom 3.0 sx outdrive.

    You ground the sender wire from the gauge to test it by jumpering the boat side of the connection. Gauge should peg up, applying 12 volts to sender wire for gauge should peg down. Turning drive hard to port gives you access to the sender, it's not a solenoid. You replace the sender and wiring...
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    Movement right to left in alpha outdrive

    Possible slop between the gimbal ring and steering shaft, square hole top of gimbal ring. More common on bravo transom assys but not unheard of with alphas. If you're swinging the drive side to side check if there is play between the gimbal ring and steering shaft, i.e. ring moves but shaft...
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    Volvo penta 3.0 starting problems

    Another yellow wire? Where? A jumper? Ignition wire is purple, primary circuit wire for cranking/relay is yellow with a red tracer. Check the starting system troubleshooting guide in the stickies top of forum page. Based on your description my first guess would be neutral safety switch is...
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