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  1. alldodge

    Mercruiser were 4.3 MPI first run of the season question

    Many cases, that kind of tag is so the shop that winterized can make more money. That said, you had it out for a run it should be ok. New to you boat means do all the maintenance before going again. Change drive lube and replace impeller Check drive alignment Change oil Change fuel filter...
  2. alldodge

    87 5.0 mercruiser won’t go over 3000 rpm

    A spark gap tester is placed inline with the plug to see that your getting a white or blue spark https://www.amazon.com/Lisle-20610-Inline-Spark-Tester/dp/B0002STSC6
  3. alldodge

    87 5.0 mercruiser won’t go over 3000 rpm

    Is this a new to you boat or just a new problem? If new problem and didn't have the problem last season, do a compression test. Also use a spark gap tester and check spark on each plug
  4. alldodge

    What is the inductor for?

    Don't understand why VP uses a inductor on a DC circuit (they resist current and not voltage changes) but that is not your question Use a ohm meter and measure the resistance. It should be 1 to 20 ohms or so. If its much higher then that, it's bad
  5. alldodge

    75 HP Mercury Bow Trim Up Does Not Work

    Purple/White is main power feed to trim switch Since trailer up works, and trim up doesn't, your problem should be the switch it self. Pic shows Purple/Red instead of Purple/White
  6. alldodge

    1987 Regal Velocity

    Just guessing but suggest a 21 3blade
  7. alldodge

    Merc. MPI 300 Water Leak-Water Distribution Housing? & Winterization Question

    Not sure, but looks like its comming from the water distribution housing. Those housing do crack. A member here made one from copper piping
  8. alldodge

    Merc. MPI 300 Water Leak-Water Distribution Housing? & Winterization Question

    Not good. When the motor gets up to temp, this only means its at running temp, it does not mean the thermostat stays OPEN The thermostat opens and closes for very short periods. Adding AF once up to temp means only it gets diluted by water. In the spring after a cold winter your almost...
  9. alldodge

    Throttle issue?

    Could be a the Tach is going bad. If it does it will kill the motor Disconnect the Gray wire to it and connect a handheld Tach to see if it does the same thing
  10. alldodge

    Tilt and Trim wiring on Mercruiser

    The lube bottle should not be connected to the trim wiring. The bottle should be connected to a Tan/Blue and Black wires.
  11. alldodge

    1987 Regal Velocity

    Most likely the chopper prop is the issue At WOT what rpm are you turning? What is the drive ratio? Is your speed coming from the boat gauge or a gps?
  12. alldodge

    New gauge cluster

    Something isn't wired right or sender doesn't match gauge.
  13. alldodge

    Belly replacement 10 gallon fuel tank on 1990 Sylvan Fisherman boat

    Will need to look for custom tank. I got mine from Flordia Marine and Tank. May have to remove, make a drawing and send to request price. Either that or there are ready made ones, which may fit
  14. alldodge

    Won't stay running

    Sounds electrical Place a voltmeter on the positive side of the coil and see if power is lost. If it is then trace backwards to the key then the motor and down to the starter/battery
  15. alldodge

    No speed, No power...please help!

    Is the vent plate even with the bottom of the keel?
  16. alldodge

    Transducers and Hull Thicknesses

    I like the ziplock bag trick (y)
  17. alldodge

    Compression test procedures for 4.3L GXI-E

    If you have a Flat top distributor cap, then disconnect the CPS If you have a coil that looks like the pic, disconnect both connectors
  18. alldodge

    Tahoe 2150 battery dead

    This is your issue. A Bat going dead in one day has something draining it big time. Disconnect all positive leads. Connect each one, one at a time and see if there is a spark. The one that sparks is probably the issue
  19. alldodge

    Compression test procedures for 4.3L GXI-E

    The first is disconnecting the coil power so it will not spark. It uses the distributor to send signal to the coil The second disconnects the crank sensor because the ECM sends signal to the coil
  20. alldodge

    Transducers and Hull Thicknesses

    I doubt the hull is to thick, a sounder will not go thru air. Rinker uses the standard plywood hull and glass. Place the transducer next to hull, then put enough water in the bilge to cover the bottom of it. Use a sand bag or something similar to hold it in place...
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