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    Mechanical to electric fuel pump wiring

    I am going to install an electric fuel pump on my M/C 470 and need some difinitive wiring instructions. I have bought a 3 leg oil sending unit but I cannot figure out where to wire the existing wire to the dash pressure guage.
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    M/C 1984, 470 Oil Pressure Sending Unit

    Where is the oil pressure sending unit located on the 470 engine?
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    Flexible Fuel Lines

    Are there any Coast Guard approved flexible fuel lines for use on an I/O engine?
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    Mercruiser 470 Leaking Carburator

    My boat has been garaged for over a year. I put a couple of ounces of Marvel Mystery Oil in each cylinder last week(4/15) and took it out to the lake this morning. I pulled the coil wire and cranked it 4-5 times. I put the coil wire back on gave her a shot of either and she fired right up. I...
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    Bellows Expansion Tool

    I need to replace all my bellows on my pre-alpha outdrive. I did this 6-8 years ago and remembered what a pain in the rear it was putting the bellows on. Sooo, for this time I bought a bellows expander tool. I got it yesterday but it came with no directions on how to use it, went on You-Tube...
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    Cracked/Torn Exhaust Bellows

    Will water backup into my engine exhaust if I put my boat in the water? Stern drive is a Alpha R, #6664498. I will replace all the bellows when I make the repairs. When repairing is it best to buy the kit or each of the bellows separately? Thanks, Larry
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    Vinyl Seat Cleaners

    Does anyone have any suggestions on cleaning my vinyl seat and what products to use? Thanks, Larry
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    5.7 liter warning buzzer

    Dual 5.7 liter m/c engines. I was idling at the dock when one of my engines died and the warning buzzer sounded. I restarted the engine right back up. With the engine restarted the buzzer would not shut down and continued to sound. I finally got it disconnected. The question is will it harm...
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    Trim Pump Breaker

    Well I'm paying a little stupid tax and need a little help to solve my problem. I took some friends out fishing Monday morning and as I was leaving the dock I pushed the switch to trim my motor down and proceeded to the fishing spot. I forgot about the switch being on and melted insulation off...
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    Jet Boat(thrust) How Does it Work

    Can anyone briefly tell me or show a schematic of exactly how a Jet Boat thruster works? Just curious. Thanks, Larry
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    Electric Knife Blades???

    Has anyone come up with a way to sharpen electric fishing knife blades??? Larry
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    Pertronix Flame Thrower Coil Installation Question on M/C 470

    I have a M/C 470 that was converted to a Pertronix ignition system in the distributor, but a regular coil. This spring I started having coil problems and it has eaten 2 regular coils this boating season. I have gotten the Pertronix Flame Thrower epoxy coil to install but haven't installed it...
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    Need Pertronix Coil Confirmation

    I have a M/C 470 with a Pertronix ignition conversion. I am running a standard 12 volt universal coil and getting a miss after about 15-20 minutes run time. After some research I suspect I have the Pertronix #1146A ignition system in my distributor. Please confirm I need Pertronix matching...
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    Infrequent sputtering, 4 o'clock Charlie

    1984 M/C 470, pushing a 24' JC Tritoon. Carb was professionally rebuilt last year, and recently clean/replaced carb filter, inline filter & water seperator filter. Really found no major contamination. I can take my boat out and run for 20-30 minutes at a time and she runs great. Then after...
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    Compression Test Question???

    What are the proper proceedures to get a correct reading on a compression test. Would these proceedures be the same for all 4 stroke engine? I have a M/C 470, 3.7L engine. Thanks in advance, Larry
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    Gold stars?

    Why do some post have multiple gold stars associated with them?
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    M/C 470 Voltage Question

    I have a M/C 470 with a 2 year old Breezework altenator conversion. My dash volt meter reads 13 and sometimes a little less volts, always 12.75 - 13 volts or a little more. I tested my altenator straight off the hot terminal on the altenator (3 wire) with a digital volt meter and was getting a...
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    M/C 470 Several Questions

    M/C 470 Serial #6684523: 1) When I bought this boat in '08 it had already been converted to Petronix ignition, my coil went out last April, I replaced it with a universal 12 volt coil from NAPA. Should I be using some sort of Petronix coil? 2) Do you set the timing with a dwell meter? If so...
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    Mercruiser 470, Help me understand this solution

    :confused:I have an '84, 470 pushing a 24' JC Tritoon. Over the last couple of weeks I have been doing my Spring maintenance, oil & filter change, lube all the grease fitting, new fuel/water filter etc. I also changed my plugs, wires, dist/cap & rotor. (Petronics ignition) The engine ran...
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    M/C 470 Replacement

    I currently have a M/C 470 powering my 24' tritoon. I am considering pulling the engine and rebuilding it. MY QUESTION: What other engine would bolt up to my existing transom and stern drive, exhaust etc? My 470 serial number is: 6684523 My Alpha sterndrive serial number is ...
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