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    Twin Merc V8 and different fuel usage

    Do both motors charge the battery that runs the electric power steering?
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    Overheating at idle, cool as a cucumber at speed

    A kink in the telltale hose should not cause an overheat issue, as it is not (or should not be) the only outlet for water going thru the thermostat. I would pull the thermostat cover and make sure the passage that goes to the exhaust cover is not blocked, and the exhaust cover has flow out the...
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    Re power - 2 cylinder vs 3 cylinder Johnson 50hp

    The 3 cylinder motor should run smoother and should weigh a bit more. However, in my experience, a lot of shops recommend the motor they make the most $$ on.
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    Twin Merc V8 and different fuel usage

    Sometimes one engine has different stuff than the other. i.e. one engine has the power steering pump and system, so It will use more fuel. Do you have an engine synchronizer?
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    Fuel Tank Sensor

    It is best is you can get a sender made for your fuel tank. Second choice is a universal sender that can be cut to work with your fuel tank. Senders usually have a black ground wire and a pink sender wire. Check the fuel pickup fitting. On my Seaswirl it was galvanized steel and rotted out.
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    Help! I need to know what I got!!! Lol

    OK A question for a powerplant. What was the performance of a 455 Olds with a Berkeley jet in the 80s. I never heard about a win in any race. Of course, I have not followed the races. My Avenger, which was a typical boat built in Ca in the seventies and eighties can cruise at 60+MPH...
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    Cowl fiberglass resto

    Gee, the worst that can happen is that you learn something about fiberglass. It is a simple repair. All labor...Repair, fill, sand repeat.
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    Cowl fiberglass resto

    Gee, don't you want the outside to look the best? That is where the form needs to be IMO. The inside can be sanded to fit. It is not a precision fit. The Mechanical Engineers metalworking creed is "Hammer to shape, file to fit, paint to hide"! Fiberglass Engineers do it a bit differently...
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    Mariner 45hp Carburetor Leaking after Total Rebuild....stumped!

    If you took your inlet needle to a Merc Dealer who owes you a favor, and looked thru his selection of new inlet needles and seats, and match the length, diameter and recess of a new inlet needle, maybe the seat would fit, after drill and tap. When I say recess, I mean the amount the inlet...
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    Cowl fiberglass resto

    Fairly easy fix. Mostly cometic. Originally the cowling was made in a Mold. You need to use something on the outside to mimic the Mold. Likely a piece of lath would work. Build up the cowling fron the inside, with a bit of fiberglass. Cloth or mat would work fine. Saturate with resin...
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    Mariner 45hp Carburetor Leaking after Total Rebuild....stumped!

    If you get real desperate, you could drill out the old seat and thread for a new seat. You would need to find a precise replacement inlet needle and seat.
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    Poppet Valve Kit for 85 Mercury Black Max 150 hp V6

    Did she overheat at engine speed below 2000RPM or above, or both? The poppit starts working at about 2000RPM, when water pressure is strong enough to open it. The thermostat cools the engine at about 2000RPM or less. Check them for proper operation. I get about 7 or 8 years on a set, in...
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    Help! I need to know what I got!!! Lol

    Is it a jet drive inboard or does it need an engine? The Olds 455CID/Berkeley Jet combo was a popular motor back in that day. Obviously check it for rot, especially the deck. I have an Avenger from the mid-70s, which is pretty similar.
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    Prop Locking Question (Reverse Locking Cam?)

    Gee, it has been a long time since I worked on that gearcase, but I seem to remember that I could not get the pinon gear off the shaft. I did remove the nut, but that was all I could manage. I seem to remember that I was able to get the forward gear out, even leaving the pinon gear installed.
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    Poppet Valve Kit for 85 Mercury Black Max 150 hp V6

    Poppit valves changed a bit over the years. Therefore make sure you get one for you exact year motor. Looks like they changed the poppit design in 1986. Crowleymarine has all the parts, but I did not see a kit. You can probably order the poppit diaghram and the gaskets and be OK, unless...
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    Controller box

    Not sure, Sometimes the throttle only button comes off and there is a bolt under it. Sometimes there is s set screw somewhere on the base of the throttle handle. Definitely pull off the trim that covers the tilt/trim switch and see what is under it.
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    Poppet Valve 1985 Mercury Blackmax 150 V6

    Check crowleymarine.
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    Prop Locking Question (Reverse Locking Cam?)

    If you can get gears and dog at a low ebay price and they are good, and you have the knowledge to install and shim them, you have a chance. Most folks do not have that expertise. I would recommend you source a used gearcase, in case you need it.
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    Prop Locking Question (Reverse Locking Cam?)

    The shift shaft coupler (female) should be pinned onto the upper shift shaft. The reverse lock cam should fit over the lower shift shaft. That is the usual gearcase in a 1973 Merc 850. If you have something else, you have another motor. I have lost the bubble on this. After you refilled the...
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    Tons of play in CC steering wheel...

    Sure, hydraulic or cable steering? Hydraulic, I would imagine with that issue.
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