Temp alarm installation on 90HP Mercury

[dmixon]

I have a 1982, 90HP, 6 cylinder outboard that has no temp guage or alarm. Is there a good source for an after market guage or alarm that I can install? I have an after-market manual for Mercury engines covering 45-225HP, 1972-1989, but nowhere in the manual does it discuss where a temp sensor should be connected to the engine.

 

[lonewolf5347]

Re: Temp alarm installation on 90HP Mercury

http://www.faria-instruments.com/cg...ge=marine&style=Euro White&id=GP9439&search=1 <br /> <br />here a simple gauge to install reads cylinder surface temp.

 

[andrewkafp]

Re: Temp alarm installation on 90HP Mercury

Is it a Blue band motor ?<br />My 82 has a tube coming from the head and up to the cabin, but has been sealed off (No gauge) <br /><br />Refer pic here.<br /> http://www.myfishingpictures.com/img/003985.jpg

 

[JohnnyS]

Re: Temp alarm installation on 90HP Mercury

That looks like the water pressure outlet for the water pressure gauge.<br /><br />The capped thin tube is likely the feed to a water pressure gauge.

 

[dmixon]

Re: Temp alarm installation on 90HP Mercury

Thanks for the quick responses...this is absolutely the most incredible forum, boat or otherwise, that I have ever come across. This temp gauge is exactly what I need. I'm also looking into the "water pressure" port in the area suggested. I may try to install a gauge here also just as a precaution. After reading other posts concerning overheating nightmares a little extra money is worth spending.

 

[izuizme]

Re: Temp alarm installation on 90HP Mercury

when you get it set up send me an email I have a similar concern izuizme@optonline.net

 

[andrewkafp]

Re: Temp alarm installation on 90HP Mercury

Site says 28lbs.. <br />Pretty heavy for a gauge.<br />Do you think it's a typo ?