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  1. R

    Is My Impeller Bad? Mercruiser 228

    the cylinders are water in it ..the impeller had a breakdown and the sea water ran a small amount in the heat exchanger that increased the engine heat and the head gaskets breaking down ... that picture is the impeller is rubber cracking it and bent the fins .. put oil in the cylinders and...
  2. R

    MCM 3.7 190 cap and rotor question

    put the new cap /rotor and inspect the ignition timing ... pertronix !!!! works very good .................
  3. R

    Prop Contacts Trim Tab Only When In Gear Not Neutral

    did you look up the old prop and the new prop ...bushing is a different new prop bushing or other prop lock ups nut etc..
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    Engine dies after 30 seconds of running

    inspect the fuel filters ...also take out the gasoline out of the tank and see if its dirty ...use a glass clear bottle ..
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    Can I install a newer outdrive?

    yes my alpha 1 MR is the same picture... ratio 1.84 20ft 3,000lbs ..170HP..470
  6. R

    Alignment Tool

    some youtube video the tool did a wrong diameter smaller .. lookup all those videos ....amazon posts the alignment tool good/bad...
  7. R

    Alignment Tool

    your alignment tool is the post ! the tool ? the boat does a distortion then you have to use the tool and the tool is putting it in .. use the video to adjust the motor and the tool is in total.. put some grease on the tool ..
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    No fire

    use a voltmeter ...
  9. R

    No fire

    use a voltmeter ... troubleshoot the coil voltage . engine cranks and the engine does not run ... no spark ...distributor cap troubleshoot ...
  10. R

    Is My Impeller Bad? Mercruiser 228

    open the heat exchanger caps front . rear then see if the water drips out to the sea water area .. I fixed it ..but ?
  11. R

    Trim pump brass fittings too big

    I would look up the s/steel fittings not the brass to the aluminum .. corrosion ..
  12. R

    Is My Impeller Bad? Mercruiser 228

    I had my suncrusier eng and I fixed the heat exchanger ..flushed out that water and did antifreeze 75% and 25% distilled water ...the caps removed and I did the 2 tubes leaks , using the silver solder ... then I inspect the zinc drain plug port sea water .. then I take the sea water plug out...
  13. R

    Mercruiser ECM replacement?

    replaced the gas reg and the pressure is correct and the needle is stable ... now run it the water and test the gasoline pressure !
  14. R

    MCM 470 Starter Shot? Replacement options?

    the starter motor takes it out then use the battery is rotating ... then the engine uses the person cranks it rotation ... do not put in the starter motor ... then open up the starter motor brushes .... probably the brushes are the brush holders rusted a bit .. also clean the armature...
  15. R

    Gear ratio in lower ?

    your engine is a V8 5.7L ? gear ratio is 1.5 .. mercruiser chart spec's ,,,,
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    470 trim pump leak

    the trim pump creates a higher pressure ...remove the trim cylinders on the outdrive .. then lift up the out drive is a very good movement or trim cylinders are looking the in/out buttons moving the pistons .. then remove the oil,,,, tank see if its dirty ..many have to change the oil or...
  17. R

    Is My Impeller Bad? Mercruiser 228

    the picture is a breakdown of the impeller ...then inspect the outdrive and change the impeller ,,, parts are worn ... I have a 1978 wellcraft suncrusier bought it in 1986 still running it today .
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    Ethanol treatment

    STA-BIL 360 Marine Ethanol Fuel Treatment I did it over 20 years .. then I suck it out in the fall ..then put in my truck ... I also put marvel mystery oil that the corrosion is no issue .. MMO I put my vehicles old vehicles in The gas tank 2 OZ .. 20-25 gals tank..
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    Priming fuel system for new engine first start.

    I cranked the engine 5 sec ... then I put one ounce in the carb. also put the water container filter the gasoline .. then crank it 5 sec .. then 2 -3 min then crank again ... crank the throttle then crank again .. you cranked over 15 seconds then a lot of cranking .. hot as hell ..
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    Engine to Outdrive Alignment Tool

    inspect the 2nd time using the boat season an alignment tool .. then also inspect the bellows and U joint and clean the bellows ..
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