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  1. R

    Mercruiser - 3.7 ( 470 ) Alpha1 ( please list the sources of CLEAN water in the oil ) about a cup - Antifreeze not leaking - no green in the water -

    I was changing the voltage regulator stator higher volts ,,, then I was alternator .... also the exhaust elbow of that exhaust, inspected it ...I did my exhaust elbow rusted it .. you are that elbow antifreeze and the ports of that sea water elbow ports ..doing the dropping out of that...
  2. R

    3.0 mercruiser oil filter size

    I did the wix oil filter all my engines ....
  3. R

    Oil in bellows questions…

    I was every year of the outdrive 10psi air gauge 24 hrs ... also I was now in the impeller and then the outdrive gauge ...
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    Shift interrupt switch - how to adjust??

    I was the carb float assembly adjustment upper and down , cleaned it of the TB cleaner carb ..the idle adjusting needle is doing the CW tight , then the CCW around 1.5/2 turns .. I was taking the needle carb out and spraying it then adjust it ..
  5. R

    Mercruser 3.7 488 wiring help

    I was the soldering connector wires and the shrink connector ...
  6. R

    2005 Chris Craft with 2 impellers overheating

    the impellers 2 outdrives now today is the china impeller ? also the grease lube impeller is working of the install it ..
  7. R

    Mercruiser 3.0 alternator

    https://www.amazon.com/Universal-Marine-Alternator-Models-Please/dp/B017XXWDRO/ref=sr_1_1?crid=1FY2ZGEP0KHMP&keywords=alternator+%231100576%2F1102393+...&qid=1689785206&s=automotive&sprefix=alternator+1100576%2F1102393+...%2Cautomotive%2C120&sr=1-1 the engines Mercruiser 1978 alternator...
  8. R

    Mercruiser 3.0 alternator

    well you are the new alternator of new alternator #1100576/1102393 ... so your are not fixing it ! the ALTERNATOR ... MY MOTORS AND ALTERNATORS ARE REPAIRING IT ..
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    Mercruiser 3.0 alternator

    I was the electronic tech ....I was the dc motors of the electrical 600 VD.C. trains . I was the motors , then inspect the armature brushes .. also the brush holder is a rusted and jammed of the brush ..cleaned the brush holder and move the brush .also the boat is the DC armature brush holder...
  10. R

    Shift interrupt switch - how to adjust??

    the ignition switch of the interrupter is the ohm meter ... take out the wires of that switch .. did you the finger of the switch pin finger and the resistance zero ohms and then not do that finger pin ..higher resistance .. your switch is changing it ...
  11. R

    Shift interrupt switch - how to adjust??

    If the interrupter switch take it out and inspect it of the ohmmeter ....also the electrical contacts and the lube components . then it was not working , take out the outdrive, and inspect that shift cable ....
  12. R

    Mercruiser 4.3 Alpha One problem - loses power

    I was the venting gas tank .... cleaned it of that screen .... my engine is running the RPM 1500 ... then my engine is over the low power ... back in the old years I was venting the every spring ....cleaned it , using a small brass bush .. also I was in the spring inspected it of the gas...
  13. R

    Mercruiser 170 runs bad when hot - voltage regulator issue?

    my MCM470 1978 eng ... I changed stator of the regulator to the alternator did the regulator is higher of 16 volts !!!! did the update back in 30 yrs .... the Pertronix 25 yrs ago ,,, the ignition coil is positive , running the engine 9.5 volts .... now the Pertronix was a higher voltage of that...
  14. R

    Motor dies in neutral

    inspect the switch ignition gear switch use the throttle handle fwd neutral rev ... the gear cable / switch cable gear / adjusted it on the top of the engine cable throttle .. you tube ....
  15. R

    Overheating

    inspect the combustion chamber .....the head gasket ...inspect the exhaust elbow ..
  16. R

    Chattering in out drive

    yes that impeller and the pipe copper outdrive .... look up your YOUTUBE VIDEO ....LOOKS LIKE THAT REVERSE IMPELLER RESTRICTED IT ... MY engine it the 140F thermostat ....
  17. R

    Chattering in out drive

    the outdrive impeller water look up the you tube .. the outdrive is a lot of that propeller water area ....or the T stat engine ....
  18. R

    Heat Exchanger blocked: recommendations how to flush or unclog?

    well the outdrive is the impeller of the sand in the water ... flush it out of the engine / heat exchanger also the elbow exhaust ...take the plugs out flush ..
  19. R

    Engine Temp

    the head gaskets of the cylinders of the air pressure gauge .. inspect it ..take the spark plugs take it off and then use the air gauge ... cranking it ..
  20. R

    Started, died and wont restart

    i was taking it out of that engine starter motor .. inspected it ... I was the starter engine of the water issue ? I was inspect the electronic electrical components ....I was the connectors cleaned it ....I was the outdrive rods of the electrical motor not working .. take it out 2 yrs ago...
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