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Alternator wire lead overheating and burning into approx 2 inches from alternator terminal

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bryankrantz

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"I have a 3.0 mercruiser and t

"I have a 3.0 mercruiser and the wire gets very hot at the nut on the alternator, that wire goes to the starter. it has burnt off about 2 inchs away from the alternator about 4 times. I have checked the voltage on the battery at 1,500 rpm and it reads steady 14.23 volts. also on the post at the alternator there is a wire terminal that is not connected or was cut, it is approx a 14 awg. does anyone know what that wire is supposed to hook to or if any capacitors or diodes were hooked there...."
 
"3.0 has been in use for many

"3.0 has been in use for many years, with several different alternators. please post some numbers for engine. try to find what type alt. as well. wire color would help for cut wire. if all of your connections are tite, ( I assume the external charge connector is tite since you have changed it out a few times) there could be a loose internal connection. can you move the stud at all?"
 
"Thanks for the reply, the eng

"Thanks for the reply, the engine model number is mcm 3.0 litre
SN: B456696

Drive unit SN: OB673524

Transom assy sn
B810711

tHE ONLY NUMBERS LEFT IN THE ALTERNATOR ARE :
MANDO 12V 55 AMP AND pn:124???????"
 
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