1979 evinrude 150 hp

et79frontrunner · 06-26-12, 10:54 PM

the buzzer goes off when i plane it off and its not getting hot and it is pumping water so i dont no if it is a short or what any suggestions to try, and i have ran it long enough that if something where wrong it would have already blew up i just want that damn horn to shut the bleep up.

lilmule · 06-27-12, 08:42 AM

Weak sensor,replace,follow the noise to source.Annoying I know,had one that wouldnt idle thru any no wake zone,yet had plenty of water and wasnt hot.
Had a marina check it out they came back with weak sensor asked did you replace it -no duh, one can disconnect it but then would have no warning horn.
Once many of the older ones sound off unless key is turned off then back on will continue to do so.
A 1977 I have on hand acts like its on a timer will actually shut down the engine after a time,yet not hot,but only does it if raised to high and not enough water pressure,even when relowered(had it on a hydraulic jack plate) and getting enough wont shut that alarm off once its tripped,again key off then restart its reset.

et79frontrunner · 06-27-12, 01:36 PM

Quote:

Originally Posted by lilmule

Weak sensor,replace,follow the noise to source.Annoying I know,had one that wouldnt idle thru any no wake zone,yet had plenty of water and wasnt hot.
Had a marina check it out they came back with weak sensor asked did you replace it -no duh, one can disconnect it but then would have no warning horn.
Once many of the older ones sound off unless key is turned off then back on will continue to do so.
A 1977 I have on hand acts like its on a timer will actually shut down the engine after a time,yet not hot,but only does it if raised to high and not enough water pressure,even when relowered(had it on a hydraulic jack plate) and getting enough wont shut that alarm off once its tripped,again key off then restart its reset.

Man the sound is in the gearbox.

lilmule · 06-27-12, 02:33 PM

Gearbox meaning control box at console ,wiring goes to sensors on the motor and back making a circuit to the warning horn .Later years have more alarms and even more places.
Sensor or sensors are on the motor,only the result noise is in the control box.
Take it to a marine mechanic.

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06-26-12, 10:54 PM	#1
et79frontrunner BassFishin.Com Member Join Date: Jun 2012 Posts: 2	1979 evinrude 150 hp the buzzer goes off when i plane it off and its not getting hot and it is pumping water so i dont no if it is a short or what any suggestions to try, and i have ran it long enough that if something where wrong it would have already blew up i just want that damn horn to shut the bleep up.

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06-27-12, 08:42 AM	#2
lilmule BassFishin.Com Super Veteran Join Date: Feb 2010 Location: Buchanan,Tn Posts: 2,685	Weak sensor,replace,follow the noise to source.Annoying I know,had one that wouldnt idle thru any no wake zone,yet had plenty of water and wasnt hot. Had a marina check it out they came back with weak sensor asked did you replace it -no duh, one can disconnect it but then would have no warning horn. Once many of the older ones sound off unless key is turned off then back on will continue to do so. A 1977 I have on hand acts like its on a timer will actually shut down the engine after a time,yet not hot,but only does it if raised to high and not enough water pressure,even when relowered(had it on a hydraulic jack plate) and getting enough wont shut that alarm off once its tripped,again key off then restart its reset.

06-27-12, 02:33 PM	#4
lilmule BassFishin.Com Super Veteran Join Date: Feb 2010 Location: Buchanan,Tn Posts: 2,685	Gearbox meaning control box at console ,wiring goes to sensors on the motor and back making a circuit to the warning horn .Later years have more alarms and even more places. Sensor or sensors are on the motor,only the result noise is in the control box. Take it to a marine mechanic.

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