alarm buzzer came on when starting the motor at the ramp

[juandapoolboi]

woke up 3:30 am finally got to the ramp put it in the water fired it up and instantly alarm buzzer started screaming definatly wasent hot not even warm new cooling system pump cup impeller stats springs and so on buzzer melted and finally stopped screaming 1983 johnson 115 crossflow v-4 any help would be greatly apperciated thanks

 

[Texasmark]

Re: alarm buzzer came on when starting the motor at the ramp

Well, you don't have to worry about a low oil level causing the alarm because they used premix back in those days and there is no oil container to remember to keep filled.

So, you are after a cooling solution.

Like you said, if it went off immediately, you either have a defective switch or a short in your wiring.

If I were in that situation, I'd remove the cowl from the engine and feel (and keep an eye on) the cylinders and heads water jackets. If that engine is getting proper coolant obviously they will only get warm over time; no coolant and it's ouch to the touch and that can come in 5 minutes or so.

Thermostats start opening at roughly 140F The water heater in your home Normal temp setting is designed to deliver 140F water to your faucet for a benchmark as to how hot is 140F. Overtemp sensors are around 190F roughly. Water boils at 212F. Engine parts should be good to over 250F to give you some more ideas as to what's ok and what's not.

I'd go fishing and not worry about it (making the checks mentioned) till I got back home. If you are worried about getting out and not back, if the problem really is circulation, run till it gets hot to the touch, shut it off till it cools and repeat the process till you get home.

My 2c

Mark

 

[juandapoolboi]

Re: alarm buzzer came on when starting the motor at the ramp

on the muffs for 10- 15 heads are touchabel for 5 sec.or more dosent seem like there getting over heated so wheres this switch at? what wires could be shorted or broken ? thanks again

 

[tashasdaddy]

Re: alarm buzzer came on when starting the motor at the ramp

short alarm wiring.

 

[bktheking]

Re: alarm buzzer came on when starting the motor at the ramp

I have an 83 90hp, similar motors. Look at the head for a wire coming out, if my memory serves me correct there is one in each head. These sensors work by grounding out the buzzer. You will need to take a mulimeter and set it on the continuity function, put one lead to ground and probe each wire. If the buzzer sounds then you'll know which sensor is grounding out. If neither are then you have a wiring problem in circuit and will need to backprobe from the sensors to find it, you'll probably find it's just one of the sensors that is bad.

 

[glennaussie]

Re: alarm buzzer came on when starting the motor at the ramp

> Hi I need some help I have a v 120 Johnson and the alarm goes off at full throtle, I have replaced the themo stats, and the impellers. All I do to stop this is turn the engine off and restart. I runs great and there is plenty of water coming out of the tell tail. I have a built in bow tank and a emergency 5 gallon tank, this problem occurs on both tanks???? I am running out of ideas!!! Can you help me? I think the year of the engine is about 1990.
> Thanks
> Glenn

 

[reeldutch]

Re: alarm buzzer came on when starting the motor at the ramp

open your own post glenn aussie and help is on the way