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  1. Bt Doctur

    1987 4.3l 205 high oil pressure

    Did they install the wrong oil pump ,a hi-vol instead of a reg normal pump. Defective by-pass spring reliefe. A hi-vol oil pump requires atleast a 12 Qt pan lest you lose oil at the high rpm`s
  2. Bt Doctur

    pulled my drive while in neutral 😬

    With the lower splined shaft turned all the way clockwise, the prop locks counter clockwise, correct?
  3. Bt Doctur

    Recommend aftermarket carb for Merc 3.0L

    over powered the carb nut but I take it for parts and shipping
  4. Bt Doctur

    Mercruiser 3.0 Water Pump Pulley Not Lined Up

    Only difference I have come across is if the timing cover is plastic or tin
  5. Bt Doctur

    Throttle cable 3.0 mercruiser

    Usually control cables have crimped/non-removable ends. New cable is needed and the lengh is printed on the cable sheath
  6. Bt Doctur

    1985 SeaRay Mercruiser 165 no spark at the plugs

    The points close and allow the voltage to saturate the coil windings, the instant they open the field collapses and the coil produces spark
  7. Bt Doctur

    Fuel pressure loss on Mercruiser 140

    remove the inlet tube and attempt to pass a wire thru it. If the wire does not pass thru, unscrew the alum tube from the alum fitting and remove the screen
  8. Bt Doctur

    1985 SeaRay Mercruiser 165 no spark at the plugs

    if the points were glazed simply filing may not work, replace them.
  9. Bt Doctur

    Swap engine - but what about camshaft?

    I believe it starts having issues above 210 or so degrees duration.
  10. Bt Doctur

    Mercruiser 5.0 50 degrees at idle

    With number 1 at TDC compression you line up the rotor tip to where number plug wire is at the cap. Most have it at #1 on the cap.Some put it anywhere and jumble the plug wires to match Firing order is 1,8,4,3,6,5,7,2 clockwise
  11. Bt Doctur

    Seems to be no power on starboard side unless i push in the emergency start button anybody know what's wrong?

    It combines the port and stbd battery systems together to start atleast 1 motor. Usually a Ford type solenoid with battery cables connected to both starters.
  12. Bt Doctur

    Seems to be no power on starboard side unless i push in the emergency start button anybody know what's wrong?

    Battery not connected to that motor Corroded connector at starter or battery
  13. Bt Doctur

    Valve Cover Breather?

    with the hose wide open it should not be "blowing off" unless the other end is restricted Try a Ty-Wrap on it
  14. Bt Doctur

    Sewing thread recommendations for a class 15 machine

    You will fine the Singer ,I have 3 of them Still searching for a fair priced walking foot model Most V92 thread on ebay will suffice. I made a mooring cover and it holding up nice
  15. Bt Doctur

    Motor has power, won’t turn over

    This is the first thing to test. Put a socket on the crank pulley and turn it clockwise. And you will regret this method for life after you break the nose bolt in the crankshaft
  16. Bt Doctur

    Updated Shift Plate Interrupter Switch Cutting motor

    When you installed the cable, did you thread it in all the way. No more than 2 threads showing. Did you adjust the movable stud all the way down first, then adjust fwd, then raise the stud to have reverse?
  17. Bt Doctur

    Converting 260MIE RH to LH.

    To convert, you need a crankshaft cam shaft, and LH seals. Trans is reversed by relocating the front pump
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