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  1. R

    Lost oil in sterndrive

    use a air pressure 7-10psi in the outdrive . then the air is dropping spray a dish soap and see if the seals are bubbles up then fix the seals ... or a alum crack .............. drain the gear oil then inspect the leaks ... I flushed outdrive , used engine oil 0-20wt ...gear oil is dirty /...
  2. R

    overheat mercruiser

    I did the water muff on the outdrive ...cranked it 3 times no start ,then engine runs with idle RPM ....... in todays world the CCP impeller is a breakdown .. post your impeller .. most replace it 1-2 yrs ...
  3. R

    overheat mercruiser

    you have to use the water hose muff on the lower outdrive flush it out ... then drain the engine water ports , then pour in the engine antifreeze coolant drain ports ... use a turkey baster...
  4. R

    No gas to carb

    you should put the fuel pump in a cup of gas.. remove the fuel filter pump can, put a small cup of gas , then install the fuel filter pump filter cover , see if the engine runs . then cranks 5-10 sec .. another crank later 2-4 min ..5-10 sec cranks it .. then no engine runs .. then use a...
  5. R

    Fogging oil won't kill engine

    I was shutting the fuel valve then spayed the fogging spray can oil.. did it 20 sec ..idle is around 650 RPM... then I put marvel mystery oil in the cylinders 1 oz... my engine is over 40 yrs old no engine damage.. used the plastic bag to seal the carb...
  6. R

    Ford 302 alternator issue

    the alternator is a corrosion on the diodes ..... my 1984 camaro I did the lower voltage amp alternator .. voltage dropped 10volts running the engine 305CU ... I fixed it cleaned the diodes voltage it 14.25volts... I know the boats are a lot of corrosion electrical issues ..
  7. R

    Fuel vent issues 4.5L 250hp Mercruiser

    the boat mechanic to have to inspect the fuel tank items ... you put the gasoline in the tank and it is a very low amount ..fix it ..
  8. R

    Fuel vent issues 4.5L 250hp Mercruiser

    the canister is to remove it and then put some air in it and the canister is blocked up flow .. or the canister is the air filter vent or the hose is distorted use the air pressure .... I did my old vehicles and the gas has a gas pump valve on the gas station ... my gm truck had the vent...
  9. R

    1986 starcraft 170hp mercruiser.

    the wires are corroded and the out drive switch is not working. the owner shorted out in the back of the engine .bypassed it ..
  10. R

    5.7 Overheating

    THE impeller is a poor material .. many replace 2 years , replacing it ..in todays world ...
  11. R

    Oil Filter, alt brands

    I used the oil WIX FILTER on my boat and my GM engines vehicles .. the filter media is great ...
  12. R

    Mercruiser 470 Only Showing 10 volts

    my mcm470 1978,,,,,,,, then put it ""down"" the alternator 1990 , next to the oil filter ,,, when the antifreeze bottle plastic is on top ,,,, MCM470 .mercrusier changed it,,, a few years later dropped the plastic bottle down .. I bought the regulator in the 1988 and it was dead in 1990...
  13. R

    oil leak on 3.0

    I adjusted it back in the 1987 .. I adjusted it behind the engine ..the cable is adjusting the move to out drive ... the steering wheel is 11 o clock then 12 o clock adjusted it ..
  14. R

    oil leak on 3.0

    the trim devices are in today's world switch/resistor it is a lot of failures . the CCP manufactured it.. I would use the liquid tape to seal it ....
  15. R

    Installed Pertronix ignitor. Now rough idle

    did you inspect the engine electrical components that post on the forum .. info of the ignition components ?
  16. 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 ?
  17. R

    Mercruiser 470 Only Showing 10 volts

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

    oil leak on 3.0

    then fix the seal and then pressure test the outdrive ...
  19. 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 ...
  20. 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 ..
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