Outboard Warning Horn! please help

[Mike O]

I have a 1982 Johnson 235HP I am getting a warning alarm if I run the engine over 4000rpm motor does not seem to be overheating temp gauge reads 150 the motor is not oil injected I mix right into the fuel tank temp gauge in located on the right side of the V6 engine block the motor does have 2 temp sensors 1 on each side any answers would be appreciated <br />Thanks<br />Mike O

 

[wilde1j]

Re: Outboard Warning Horn! please help

What alarm? The hot horn is used for overtemp, low oil in VRO tank, low oil flow. Check your owner's manual for more info.

 

[tuber]

Re: Outboard Warning Horn! please help

just a hunch but, could be the oil pump isn't delivering enough pressure at the high rpm

 

[Mike O]

Re: Outboard Warning Horn! please help

Thanks for your answers but I do not have a VRO system I mix the fuel could it be a bad sensor? or gasket on the head. water flow out of the engine is good and is cool to the touch any other thoughts???<br /><br />Thanks in advance <br />Mike

 

[clanton]

Re: Outboard Warning Horn! please help

Check engine temp with melt stick, thermocoupler, or a lazer temp checker. If the warning horn is sounding, the engine is hot, the sensors are bad, the tan wire is shorted to ground.

 

[orca]

Re: Outboard Warning Horn! please help

G'day. These big V6 motors have a problem with water flow at high RPM. When you have checked out all options, water pump, thermostats etc. then remove tha cylinder heads and check that there are restrictors in the water passages. they look loke lumps af black rubber about 1"long between the cylinder block and the cylinders.

 

[DiverDown]

Re: Outboard Warning Horn! please help

Whaley,<br />Thats what I did not want to hear but it looks like the cyl. heads are coming off it's the only thing I have not checked GOD I HOPE THIS IS IT!<br /><br />Thanks for the insight!!<br />Mike<br />Will post what happens

 

[Typhoon]

Re: Outboard Warning Horn! please help

Are you sure that it is not a fuel restriction problem?

 

[Mike O]

Re: Outboard Warning Horn! please help

Typhoon! <br />Fuel restriction??? I can punch the motor to 5000 no hesitation I did not know the alarm would sound on a fuel restriction could you go into more detail PLEASE<br /><br />Mike

 

[Typhoon]

Re: Outboard Warning Horn! please help

Well, I have a 93' 150 HP Envinrude & mine IS a VRO system. If I get a steady beep from my horn at high RPM it is a fuel restriction. Mine is doing it now (intermittently) WOT only & high RPM only (55MPH+). I have just replaced my fuel filter, but haven't had a chance to drive her yet to check it.