Stranded

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Old 09-11-02, 07:43 AM
pavery
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Stranded

I HAVE A 89 MERCRUISER 4.3 WITH THE THUNDERBOLT IGNITION. IT HAS LEFT ME STRANDED TWICE.
SOMETIMES THE BOAT WILL RUN GREAT WITH NO PROBLEMS OTHER TIMES IT WILL RUN GREAT FOR A WHILE BUT WILL CUT OFF AND NOT RESTART. THE LAST TIME IT HAPPENED
I LOOKED AT THE ENGINE AND IT SEEMED TO BE GETTING FUEL.
WHEN I WENT TO CHECK FOR SPARK, I ACCIDENTLY TOUCHED THE DISTRIBUTER. I RECEIVED A SMALL SHOCK. I WAS ABLE TO GRAB A DISTRIBUTER PLUG AND RECEIVE VERY LITTLE SHOCK. COULD THIS BE THE IGNITION AMPLIFIER AND HOW DO YOU CHECK FOR A WEAK AMPLIFIER.
 
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Old 09-11-02, 06:42 PM
BoatMech's Avatar
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Join Date: Dec 1999
Location: Los angeles
Posts: 592
You can replace the sensor and coil.
You can check for shorts to the wiring to the
shift assist switch. You can check the connections
between the amplifier and the distributor but you cannot
perform any tests on the amplifier.
It controls the advance only, Therefore it will either have
advance or not, i have never seen one cause a no
spark condition.
 
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