Search results

  1. R

    Installed Pertronix ignitor. Now rough idle

    you bought the boat in the spring . 3.7 eng .1989 ,, did you inspect the igniter .. or the distributor points . or the electronic ignition .. inspect the timing . engine ignition is updated ?
  2. R

    Mercruiser 470 Only Showing 10 volts

    the voltage on the dash gauge is 13.75-14 volts ..
  3. R

    oil leak on 3.0

    then fix the seal and then pressure test the outdrive ...
  4. R

    oil leak on 3.0

    the electrical wires have a soldering and then the liquid tape ...then use a thin heat shrink tube and use the heat gun electrical gun ...
  5. R

    oil leak on 3.0

    you have to inspect the bell housing .. remove corrosion and use the primer paint with alum .. then black paint is correct .. drive shaft has a leak next to the U joints ..use the air pressure gauge .... 7-10 psi .. see if its leaking ..
  6. R

    Converting to carburetor from mpi 350 mag

    so the boat was on a power cord ? the lightning hit the power lines ... last week I had the electrical power lines on the street hit the lightning .. my house shut down the electrical around 30 min .. I install the electrical surge protector ....
  7. R

    oil leak on 3.0

    grease is inside the bellows u joints .. but no gear oil ... did you use the old trim sw/resistor left right see if the ohm meter is working . I no the CCP parts are a lot of failures ..switch/resistor sensor .. corrosion in the components ...
  8. R

    Converting to carburetor from mpi 350 mag

    look up the ECM part on your 2000 motor .. ebay ? I did not change the carbs a lot of $$ and a motor damage ...
  9. R

    Converting to carburetor from mpi 350 mag

    the electrical issues have a lot of damage ! lightning ..
  10. R

    Installed Pertronix ignitor. Now rough idle

    I did the service bulletin that change the gas ... Technical Bulletin 1/06 Revised Initial Ignition Timing For MerCruiser 3.7L Engines The AERA Technical Committee offers the following information regarding revised initial ignition timing for MerCruiser 3.7L engines. This revision is to help...
  11. R

    Installed Pertronix ignitor. Now rough idle

    the crank shaft pulley is the mark ..then the ignition timing marker is on the engine , the RPM is 600-1100 RPM ..I used a white paint on the marker .. the 1983 120HP is around 4 deg..distributor is moving a small amount of rotation ,, to adjust it ..in todays world the gasoline is not lead...
  12. R

    Installed Pertronix ignitor. Now rough idle

    you have to adjust the timing when you change the pertronix 1146a... also the positive ignition coil , engine runs is 9.5volts dc .. my MCM470 has a resistor wire ...engine runs 9.5 volts ....then I changed the correct timing when the pertronix changes the timing .. then set it ,, the engine...
  13. R

    Compression Test Readings

    new head bolts !!!! good ..
  14. R

    oil leak on 3.0

    I did some rust on the metal rust holes https://www.amazon.com/TRAVACO-PRODUCTS-MARINE-TEX-Marine-TEX/dp/B00144DIKA/ref=sr_1_6?keywords=marine-tex%2Bepoxy&qid=1663806509&sr=8-6&th=1
  15. R

    WOT RPM too high. Where is the slip?

  16. R

    3.0L idle way too low

    TO adjust the idle .. then inspect the timing ignition ...
  17. R

    Compression Test Readings

    did you test the engine compression correct ?
  18. R

    Starting point for idling/performance troubleshooting

    the engine is a tappet noise .... did the engine oil is water in it ..
  19. R

    oil leak on 3.0

    remove the timing cover then inspect the oil leak ...then the oil pan is a break down gasket then take the motor out ............. you have to a couple of persons to take out and put in the motor ..
  20. R

    Main engine for trolling

    my boat engine runs over 37yrs no engine failures ..engine runs very quiet ..flat tappets no wear ...I use 5oz SN PLUS LUCAS ADDITIVE .. LOOK UP THE OLD ENGINE,, AUTO FORUMS ...1985 AND OLDER ..
Top