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    Not getting water to crank pumps-Bravo1

    I just replace both Johnson impellers on both my cranks pumps. I was eating them up. Then, I connected muffs, but no water is getting to pump. Faucet is set on max water output. I disconnected hose at pump head but no water coming out of hose. Both my Bravos had been retrofitted with bravo-itus...
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    MC Chevy V8 Bravo 1 Crankshaft water pickup pump issues

    Boat sat in my driveway for about 4 years due to health issues. When I put it up 4 years ago it ran very well. Both motors were about the 150-degree temperature range during sea trial. I am very familiar with Alphas, but it looks like former owner may have skimped on the best water pick up...
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    Still issues with base timing TB5 Chevy v8

    I know I am supposed to ground the purple/white wire coming out of the DCM for base timing setting but tracing that purple/white wire only goes back to my main wire bundle. Maybe I am not seeing something in the bundle justifying this procedure? Is there a capacitor the wire goes to inside the...
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    TB5 Chevy 350 Thermostat.

    I have an anti-freeze closed cooling v8 that I believe I need to replace thermostat. Will a standard non marine thermostat work. Only antifreeze touches the stat.
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    TB 4 AND 5 COILS

    I ordered a coil for my carbureted TB5 MC Chevy V8. The ad read that it was for either ignition system for V8s and HEI. However, after examining the new coil, the positive side had 15 vt. listed. I am currently reading 12.25 volts coming from my ignition wire. I have always had 12 volts listed...
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    Which coil to use?

    My coil may have gone BAD. It says "Mercruiser" on the coil's body, but faintly. No other writing is available. It is installed on a an older 350/stroker carbureted motor using a MC TB5 ignition system. I believe a Chevy automotive internal resistor coil could work on the TB 5 but I am not 100%...
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    Thunderbolt 5 Base Timing Issues

    After some health issues, I am back into rebuilding my Old Sea Ray. I have port running great. Starboard is having issues. 1: I cannot get performance. It feels like it is in timing and will not advance (correctly). I disconnected lead and grounding it, but distributor still advances on...
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    Manual fuel pump restrictions?

    I have about a 2' foot vertical drop from my fuel tank to Chevy 350 with manual fuel pump. However, the horizontal length of the line is about 6'. Fuel comes from tank into a tank selector switch manifold and into a water/fuel separator. From there it goes to fuel pump. Is this horizontal length...
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    Base timing on TB5 350 V8 Carbureted with knock Sensor???

    My Selock manual is as useless as tits on a frog. I timed these motors years ago but have forgot which wires to disconnect at distributor. I did some motor work and have to reset timing. I believe I must disconnect knock sensor, but my old memory keeps telling me that I need to disconnect...
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    Coast Guard Requirements

    Anyone have a CG link or similar to provide me with the minimal flare requirements, including expiration dates) for offshore motorized vessels of 27 feet and greater. CG home web page is useless.
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    Sealant or no Sealant?

    I have been ill for a while, but I am now ready to complete my project boat. I am installing my antifreeze cooled exhaust manifolds and saltwater cooled risers (Chevy v8). Motors only have saltwater passing thru heat exchanger and risers. My Exhaust manifolds are open style so I have to install...
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    Vinyl curtain shrinking.

    I cover my boat with a Big tarp. Unfortunately, due to health issues, I have not been able to work on it much as I would like. However, I notice recently that my curtains seem to have shrunk which is making zippers difficult to close curtains. One zipper broke. Doest clear vinyl do this over time???
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    Best boat lettering removal?

    I have to remove current boat's name. It is a decal and not painted. Once removed, I can buff area and hopefully make it look decent. There are many products on the market, but I thought I'd seek advice from boaters.
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    MC Oil Filter Kit Hoses Under or Over?

    I have remote oil filter kits on both my MC Chevy V8s/IOs. Unfortunately, I didn't take photo of hose routing when I removed starboard motor to rebuild transom. Port is pretty much ok. Filter mounting bracket appears vertical on starboard exhaust riser in some photos, but I cannot remember or...
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    Washdown Pickup Placement

    I am installing a gilled bronze water pickup device to the stern of my boat, below water line and just below bottom of boat. Pump is inside and the pickup will be plumed along the outside of the stern and the plumbing will enter boat above the waterline. Should the gill slits face the water...
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    1986 270 Amberjack Sea Ray

    I have looked aimlessly to find a windshield wiper pair (rubber and metal arm) to fit my ventage 1986. Wiper motors and studs are great as to the rest of the electrical. Any suggestions?
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    Sewing Marine Vinyl?

    A few years back I made some clear curtains for my boat. My old Kenmore worked OK to good. Although, my first attempts sucked. I got pretty good at it and finished my project. I am getting ready to sew clear inserts. I suspect 20 gauge will do. 10 gauge too light and 30 gauge too thick. I cannot...
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    Using Neoprene Strips to Cushion Marine Gas Tank

    By now, mot of us have read about the issues using foam to seal and cushion marine tanks. Sooner or later it invites corrosion. I have been working on my 1986 Sea Ray Amberjack restoration for almost 4 years. Covid and health issues have cause many delays. I am ready to install gas tanks. SR...
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    Need this part #

    My boat has been retro-ed to closed cooled MC V8s. However, I had to tear up exhaust manifold/riser gaskets to remove motors in order to replace a rotten transom. The riser gaskets were made out of a dark gray solid fiber (no passageways) that sandwiched a flat piece of SS (maybe 30-45 thousands...
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    Knock Sensors?

    I have TB 5 with Knock sensors but I am a little confused. If the KS module detects "knocks" does it totally retard timing to -0- or only reduce timing enough until it stops sensing any knocks?
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