Engine Produced Hot Smell
Posted: Mon Jul 11, 2022 8:03 pm
Q1: what causes my 2016 Mercury 150-HP FOURSTROKE engine to emit an order of "hot" after a six-mile run at an engine speed of never more than 3,200-RPM during which there was good water flow from the overboard confidence stream nozzle, good water pressure indicated on an electronic Smartcraft cooling water pressure gauges, and good oil pressure.?
The odor smelled like hot wiring. Note: the engine alternator was just replaced before this run because the original engine alternator failed after 245-hours of engine run time, and the cause has never been determined.
The engine is charging two batteries: one GROUP 27 flooded cell lead-acid deep-cycle battery, and one GROUP 24 sealed absorbed glass mat cranking battery.
The voltmeter function on the SmartCraft gauges shows battery voltage is 14.5-Volts.
I have no idea why the original alternator failed. I did not take off the engine cowling due to time constraints. While flushing the engine I smelled the "hot wiring" odor
Could having an AGM and a flooded cell be part of any of the electrical malfunction?
These two batteries were in the boat when I bought it.
The odor smelled like hot wiring. Note: the engine alternator was just replaced before this run because the original engine alternator failed after 245-hours of engine run time, and the cause has never been determined.
The engine is charging two batteries: one GROUP 27 flooded cell lead-acid deep-cycle battery, and one GROUP 24 sealed absorbed glass mat cranking battery.
The voltmeter function on the SmartCraft gauges shows battery voltage is 14.5-Volts.
I have no idea why the original alternator failed. I did not take off the engine cowling due to time constraints. While flushing the engine I smelled the "hot wiring" odor
Could having an AGM and a flooded cell be part of any of the electrical malfunction?
These two batteries were in the boat when I bought it.