84 black max 150

[bobkyle2]

hello all new to the forum.. ive got a 84 mercury black max 150.. the boat doesnt have a temp gauge.. and i would really like to have one.. i was just wondering if someone could point me in the right direction were to put the temp sensor.. and i dont even know if these boats would have like a mechanical gauge or like a 12v set up.. im pretty familiar with both from the auto side of things ... thanks for the help with the NEWBIE...

 

[MikePaauwe]

Re: 84 black max 150

On my 135 Blackmax the temp gauge sensor is installed in a pocket about 1/3 the way down the port cylinder head. There is an overtemp switch fitted in the same position on the starboard cylinder head.
This is a mercury original part although the wire to the instrument cluster is a single wire, not part of the regular wiring loom.

 

[j_martin]

Re: 84 black max 150

To continue the discourse. That temp sender wire reappears in the dasboard harness. A Mercury compatible gauge will have instructions for hooking it up.

hope it helps
John

 

[bobkyle2]

Re: 84 black max 150

ok thanks guys!... im "hopefully" going to the boat shop today..