1989 merc 80 hp rectifier

[jasona]

Hi All,

I have a 1989 Merc 80 hp 3 cylinder, serial # 0A752169. My Rectifier is bad, so I am going to replace it. I was looking at the wires connected to it and there are as follows:
top post: labeled alt, has two yellow wires connected to it.
middle post; labeled tach, has one grey wire connected.
bottom post: labeled alt, had two yellow wires connected to it.

shouldn't there be a red wire connected to it somewhere? If so, from where does that red come from?
Thank you for the help.

 

[jasona]

Re: 1989 merc 80 hp rectifier

One more thing...I am going to replace this rectifier with sierra #18-5707, which I believe is the correct replacement part.

 

[achris]

Re: 1989 merc 80 hp rectifier

In this drawing 'j' is the rectifier, and yes, that is the right sierra part number.

 

[jasona]

Re: 1989 merc 80 hp rectifier

thanks achris. where did you find that diagram, it's not in my clymer book.
based on your diagram, i should have a red lead coming from "I" which I do not have right now. I will need to look so what mat be mis-connected. basd on your diagram, everything els should be ok, right?

 

[achris]

Re: 1989 merc 80 hp rectifier

Those clymer and solec manuals need to be banned from sale!!!!!

Download a genuine manual HERE, password for the file is <ribforum>. I use 7-Zip to decompress it.

Chris.........

 

[jasona]

Re: 1989 merc 80 hp rectifier

thank you. i will let you know how it goes.