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  1. 04fxdwgi25

    trim tabs or not?

    They might be OK, but I am under the impression they work well on smaller boats, not so much on larger / heavier ones.
  2. 04fxdwgi25

    Unknown Short Circuit

    Blocking diode is like a check valve. Only allows voltage to flow in 1 direction and blocks flow in opposite direction. Hence why it is used on the fuel pump circuit. Allows starter circuit to power fuel pump, but once started, blocks the ignition circuit from powering starter solenoid, after...
  3. 04fxdwgi25

    First Start of the year and High Oil Pressure

    Super high oil pressure sure sounds like a stuck oil pressure relief valve in the oil pump, from sitting over the winter. Is the oil in the engine fresh oil, or last years? Maybe a little Marvel Mystery Oil in the engine oil may help "unstick" it. On the alarm.... low oil pressure, low drive...
  4. 04fxdwgi25

    trim tabs or not?

    I had a Chap 2550 SX Sport with same problem. 7.4 with a Bravo1 and would wander something awful at low head speed. Added Bennett 12"w x 16" L Sport tabs( with the dual pistons) and the bow wander completely stopped when tabs were full down.. Number 1 best add on to that boat that I did.
  5. 04fxdwgi25

    MerCruiser 5.0 MPI diagnostic connector

    My main concern would be the fuel smell in the engine compartment. That is how majority of boat fires / explosions start. Can't blame a flooded carb, since it is MPI.
  6. 04fxdwgi25

    Trim Pump Fluid

    Bennett suggests ATF
  7. 04fxdwgi25

    can someone let me know what fuse sizes?

    That accessory wiring IS a trailer wiring harness, repurposed.
  8. 04fxdwgi25

    Converting to Electric over Hydraulic this week

    Have had surge drums over the years. Never again
  9. 04fxdwgi25

    Converting to Electric over Hydraulic this week

    Last update. Bled brake system using a mighty vac pneumatic operated pump out and a brake bleeder tank that keeps MC fluid tank full while bleeding. Took all of about 45 minutes and about a quart of brake fluid to completely flush out system with new fluid with no assistance. Works far better...
  10. 04fxdwgi25

    Diagnosing trim gauge issues

    Trim indicator in full up all the time indicates an open circuit (bad sender or broken/disconnected wire somewhere) or a bad gauge. On back of gauge, with power applied, short the "S" terminal to ground. If it goes full down, the gauge is good and your problem is in the wiring or sender on...
  11. 04fxdwgi25

    can someone let me know what fuse sizes?

    I do applaud your incentive and effort to upgrade / improve the deficient existing electrical system, but taken a step further to ensure reliability and safety may have been warranted. Neat and tidy would have been a goal for most, but isn't considered in this. Just suggesting that some insight...
  12. 04fxdwgi25

    Looking for tips and tricks for installing Bravo transom assembly

    You should find one of the templates and use it to lay out the cut out Mercruiser does offer a cut out jig, but it is pricey. Maybe find one used??? Here is one on e-bay. for 80 bux...
  13. 04fxdwgi25

    can someone let me know what fuse sizes?

    Personally, I would do some reading up and watching videos of proper marine / boat wiring techniques and best practices.
  14. 04fxdwgi25

    NMEA adapter to connect Garmin chart plotter and iCom radio?

    Here is the connections DWG I used to connect my Std Horizons DSC to the new Garmin Echomap 74 SV I installed. Works fine. As others state the NEMA 0183 connection is bundled in the power cord
  15. 04fxdwgi25

    Hose connection in transom well?

    Water tank fill ????
  16. 04fxdwgi25

    New intake...port for pcv and for vaccume

    Does your engine have an actual PVC valve in the valve cover? If not, plug / cap the PVC port.
  17. 04fxdwgi25

    Converting to Electric over Hydraulic this week

    Did read the voltage at the EoH (black power feed wire on the terminal connection box right next to EoH) and it was same as battery voltage (13.9 VDC) on truck, +/- 0.1 volts) with EoH running at full input signal. Connected the Fluke, reading max / min to the black and ground. Also checked...
  18. 04fxdwgi25

    Converting to Electric over Hydraulic this week

    As stated, I did. Multiple tests with different outputs on P3 brake controller confirm P3 brake controller output is same as input to the EoH unit, from min setting to max, with EoH unit running..
  19. 04fxdwgi25

    Stuck on what to do with mercruiser controls

    Here is the manual for the one you ref'd at ebay. The Commander Classic. Don't see a cut out template for it.
  20. 04fxdwgi25

    Converting to Electric over Hydraulic this week

    Mine is an older '04 4x4 Lariat. The red, white, black and blue wires are all 10 gauge. The trailer battery charge relay is backed up by a 30 amp fuse. When engaged, I can hear the EoH operate from the cab with back window open. Connected my Fluke up to the EoH BLUE input wire to log voltages...
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