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makomark

makomark

Silver Medal Contributor From Maryland - USA
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Viewing thread Mercruiser 3.0 stalls out after an hour
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    • makomark
      makomark replied to the thread How bad is it?.
      how high up, on the engine, did the water level go? Oil level normal?
    • makomark
      makomark replied to the thread Blew another seloniod on 1976 Ford 302.
      I wouldn't worry about a compression test until the starter will spin the engine at a 'normal rate'....Doing a spin check with the plugs...
    • makomark
      makomark replied to the thread Mercruiser 3.0 stalls out after an hour.
      Have you checked for SPARK when the engine dies out? You never said which version of 3.0 you have so specifics are hard to provide...
    • makomark
      makomark replied to the thread 1991 Luhrs 3400 Crusader 454.
      You would really be better off troubleshooting issues before swapping parts. On the bilge pump switch, you need to make sure you have...
    • makomark
      makomark replied to the thread Blew another seloniod on 1976 Ford 302.
      and the 'yellow plug' may go back to the shift control and be part of the neutral safety switch wiring...that appears to have been...
    • makomark
      makomark replied to the thread Blew another seloniod on 1976 Ford 302.
      Your BLACK 8GA wire coming from the Gauges should go to the engine block and NOT the Starter. Depending upon what else is going on at...
    • makomark
      makomark replied to the thread 1989 mercruiser 5.7 no spark.
      you need to follow the test procedure for the TB-IV ignition system, not just make random voltage measurements.... Mercathode is a...
    • makomark
      makomark replied to the thread Considering 7.4L Crusader XLi TBI Issues ?.
      Firm asking price...on a hull that old....amazing!!! Your money, your risk - buy what makes you happy and keeps the hair on the back of...
    • makomark
      makomark replied to the thread Gauge HELP.
      optical tachs can be used to check the regular tachs at any time...and they are real cheap if you don't object to the imported ones...
    • makomark
      makomark replied to the thread Gauge HELP.
      Sounds like more troubleshooting is in order...on the port side anyhow...could be the sending wires are connected all the way thru the...
    • makomark
      makomark replied to the thread Considering 7.4L Crusader XLi TBI Issues ?.
      Are they available - yes, but not everybody has what you need. That said, there are several TBI specialists that are will to work the...
    • makomark
      makomark replied to the thread Coupler mismatch.
      you can try a sierra 18-21751-1 coupler...they are listed as being for an SX drive spun by an early (2 pice rear seal) SBC... I've...
    • makomark
      makomark replied to the thread Gauge HELP.
      usually a GRAY wire or two is on the "-" terminal of the tach....one of which should run up to the gauges at the instrument panel...
    • makomark
      makomark replied to the thread 1968 omc 120hp dual carbs.
      I don't have a definitive (independent) source but can tell you the stern drive community got rid of the "top plate" manifolds on the GM...
    • makomark
      makomark replied to the thread Replacing coolant - Can't open bleed valve.
      as long as the fill neck on the HX is the highest point in the system, then yes, the air will eventually make it to the HX... you can...
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