Overheating Alarm

[Shadowjaguar1]

I recently purchased a boat. It has overheated twice, affecting the wiring near the block. No alarm. My engine is a '95' J90TLEOR. Is there supposed to be an overheat alarm on this model. If so, where can I purchase one. The temp sensors are there but I have found no alarm unit. Thank you.

 

[Silvertip]

Re: Overheating Alarm

The boat was probably sold knowing that there was an overheat issue so the alarm has been disconnected. For shame!!!! But, in case I'm wrong (that has happened before --- once I think) here is a simple alarm test. Turn the key to the RUN position. Does the alarm sound when you turn the key? No = defective horn or disconnected alarm. Next test is to locate the tan wire coming from the temp sensor on the engine. Follow that wire about 8 inches or so to the bullet connector. Disconnect that connector. Again, with the key on, ground the NON-SENSOR end of that wire. Does the alarm sound? No = bad alarm or disconnected alarm. It is highly unlikely the alarm will sound when grounded, but not sound when the key is initially turned on. It is possible however, the power to the alarm module is disconnected. On side mount control boxes, the horn is inside the control box. You can get a replacement on-line or at an Evinrude dealer.

 

[Shadowjaguar1]

Re: Overheating Alarm

Thank you sir. I have already removed the side control box cover and never noticed what may be an alarm module. Could you give a quick description. I have been looking at the MarineEngine.com web site for an alarm module and it is not where you would expect it. Thank you for your response.

 

[boobie]

Re: Overheating Alarm

Did you try the test Silvertip suggested about grounding out the tan wire with the key on and listen for a horn to sound. If not do it. If you don't get a horn when the tan wire is grounded on the block either it's defective, you don't have one or it's been disconnected.